CA2242405C - Stable high perfume, low active fabric softener compositions - Google Patents
Stable high perfume, low active fabric softener compositions Download PDFInfo
- Publication number
- CA2242405C CA2242405C CA002242405A CA2242405A CA2242405C CA 2242405 C CA2242405 C CA 2242405C CA 002242405 A CA002242405 A CA 002242405A CA 2242405 A CA2242405 A CA 2242405A CA 2242405 C CA2242405 C CA 2242405C
- Authority
- CA
- Canada
- Prior art keywords
- composition
- softener
- nonionic surfactant
- cationic
- perfume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 209
- 239000002304 perfume Substances 0.000 title claims abstract description 64
- 239000002979 fabric softener Substances 0.000 title claims abstract description 9
- 239000002752 cationic softener Substances 0.000 claims abstract description 68
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 59
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 48
- 239000012141 concentrate Substances 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000002245 particle Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000004615 ingredient Substances 0.000 claims abstract description 15
- 239000004665 cationic fabric softener Substances 0.000 claims abstract description 13
- 229910017053 inorganic salt Inorganic materials 0.000 claims abstract description 10
- 239000008346 aqueous phase Substances 0.000 claims abstract description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 73
- -1 alkyl hydroxyethyl dimethylammonium chloride Chemical compound 0.000 claims description 71
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 46
- 229930195729 fatty acid Natural products 0.000 claims description 46
- 239000000194 fatty acid Substances 0.000 claims description 46
- 150000004665 fatty acids Chemical class 0.000 claims description 46
- 238000002156 mixing Methods 0.000 claims description 43
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 36
- 239000003760 tallow Substances 0.000 claims description 29
- 238000013019 agitation Methods 0.000 claims description 23
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 21
- 150000001450 anions Chemical class 0.000 claims description 19
- 150000003839 salts Chemical class 0.000 claims description 18
- IQDGSYLLQPDQDV-UHFFFAOYSA-N dimethylazanium;chloride Chemical compound Cl.CNC IQDGSYLLQPDQDV-UHFFFAOYSA-N 0.000 claims description 15
- 150000002191 fatty alcohols Chemical class 0.000 claims description 14
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 12
- NUCJYHHDSCEKQN-UHFFFAOYSA-M dimethyl-bis(2-octadecanoyloxyethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC(=O)OCC[N+](C)(C)CCOC(=O)CCCCCCCCCCCCCCCCC NUCJYHHDSCEKQN-UHFFFAOYSA-M 0.000 claims description 8
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 7
- MPNXSZJPSVBLHP-UHFFFAOYSA-N 2-chloro-n-phenylpyridine-3-carboxamide Chemical compound ClC1=NC=CC=C1C(=O)NC1=CC=CC=C1 MPNXSZJPSVBLHP-UHFFFAOYSA-N 0.000 claims description 6
- IYAQFFOKAFGDKE-UHFFFAOYSA-N 4,5-dihydro-1h-imidazol-3-ium;methyl sulfate Chemical compound C1CN=CN1.COS(O)(=O)=O IYAQFFOKAFGDKE-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- REZZEXDLIUJMMS-UHFFFAOYSA-M dimethyldioctadecylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC REZZEXDLIUJMMS-UHFFFAOYSA-M 0.000 claims description 4
- 239000004664 distearyldimethylammonium chloride (DHTDMAC) Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- LKAWQFHWVVSFTR-UHFFFAOYSA-N 2-(methylamino)ethanol;hydrochloride Chemical compound [Cl-].C[NH2+]CCO LKAWQFHWVVSFTR-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- UAKOZKUVZRMOFN-JDVCJPALSA-M dimethyl-bis[(z)-octadec-9-enyl]azanium;chloride Chemical compound [Cl-].CCCCCCCC\C=C/CCCCCCCC[N+](C)(C)CCCCCCCC\C=C/CCCCCCCC UAKOZKUVZRMOFN-JDVCJPALSA-M 0.000 claims description 3
- PGZPBNJYTNQMAX-UHFFFAOYSA-N dimethylazanium;methyl sulfate Chemical compound C[NH2+]C.COS([O-])(=O)=O PGZPBNJYTNQMAX-UHFFFAOYSA-N 0.000 claims description 3
- 150000002314 glycerols Chemical class 0.000 claims description 3
- 150000004820 halides Chemical class 0.000 claims description 3
- SFVFIFLLYFPGHH-UHFFFAOYSA-M stearalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SFVFIFLLYFPGHH-UHFFFAOYSA-M 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 150000007942 carboxylates Chemical class 0.000 claims 2
- 238000004900 laundering Methods 0.000 abstract description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 44
- 235000008504 concentrate Nutrition 0.000 description 32
- 150000001875 compounds Chemical class 0.000 description 29
- 239000007859 condensation product Substances 0.000 description 21
- 239000004744 fabric Substances 0.000 description 16
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical class OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 15
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 15
- 239000000243 solution Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 14
- 239000000126 substance Substances 0.000 description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- 239000004094 surface-active agent Substances 0.000 description 10
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 9
- 108010059892 Cellulase Proteins 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 9
- 239000001110 calcium chloride Substances 0.000 description 9
- 229910001628 calcium chloride Inorganic materials 0.000 description 9
- 229940106157 cellulase Drugs 0.000 description 9
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 7
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 150000002148 esters Chemical class 0.000 description 7
- 235000001727 glucose Nutrition 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 108010084185 Cellulases Proteins 0.000 description 6
- 102000005575 Cellulases Human genes 0.000 description 6
- 150000001412 amines Chemical group 0.000 description 6
- 239000002518 antifoaming agent Substances 0.000 description 6
- 239000008103 glucose Substances 0.000 description 6
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 description 6
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 description 6
- 125000001183 hydrocarbyl group Chemical group 0.000 description 6
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 6
- 229930002839 ionone Natural products 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 6
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 6
- 235000000346 sugar Nutrition 0.000 description 6
- 102000004190 Enzymes Human genes 0.000 description 5
- 108090000790 Enzymes Proteins 0.000 description 5
- 125000003342 alkenyl group Chemical group 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 229940088598 enzyme Drugs 0.000 description 5
- 239000003205 fragrance Substances 0.000 description 5
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 4
- 241000402754 Erythranthe moschata Species 0.000 description 4
- GLZPCOQZEFWAFX-UHFFFAOYSA-N Geraniol Chemical compound CC(C)=CCCC(C)=CCO GLZPCOQZEFWAFX-UHFFFAOYSA-N 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- 240000008042 Zea mays Species 0.000 description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 4
- 125000002947 alkylene group Chemical group 0.000 description 4
- 125000003710 aryl alkyl group Chemical group 0.000 description 4
- 150000001720 carbohydrates Chemical group 0.000 description 4
- 125000002091 cationic group Chemical group 0.000 description 4
- QMVPMAAFGQKVCJ-UHFFFAOYSA-N citronellol Chemical compound OCCC(C)CCC=C(C)C QMVPMAAFGQKVCJ-UHFFFAOYSA-N 0.000 description 4
- 235000005822 corn Nutrition 0.000 description 4
- KSMVZQYAVGTKIV-UHFFFAOYSA-N decanal Chemical compound CCCCCCCCCC=O KSMVZQYAVGTKIV-UHFFFAOYSA-N 0.000 description 4
- HFJRKMMYBMWEAD-UHFFFAOYSA-N dodecanal Chemical compound CCCCCCCCCCCC=O HFJRKMMYBMWEAD-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 125000001165 hydrophobic group Chemical group 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- WPFVBOQKRVRMJB-UHFFFAOYSA-N hydroxycitronellal Chemical compound O=CCC(C)CCCC(C)(C)O WPFVBOQKRVRMJB-UHFFFAOYSA-N 0.000 description 4
- 229910052740 iodine Inorganic materials 0.000 description 4
- 239000011630 iodine Substances 0.000 description 4
- VAMXMNNIEUEQDV-UHFFFAOYSA-N methyl anthranilate Chemical compound COC(=O)C1=CC=CC=C1N VAMXMNNIEUEQDV-UHFFFAOYSA-N 0.000 description 4
- ZRSNZINYAWTAHE-UHFFFAOYSA-N p-methoxybenzaldehyde Chemical compound COC1=CC=C(C=O)C=C1 ZRSNZINYAWTAHE-UHFFFAOYSA-N 0.000 description 4
- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 4
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- GLZPCOQZEFWAFX-YFHOEESVSA-N (Z)-Geraniol Chemical compound CC(C)=CCC\C(C)=C/CO GLZPCOQZEFWAFX-YFHOEESVSA-N 0.000 description 3
- QUMXDOLUJCHOAY-UHFFFAOYSA-N 1-Phenylethyl acetate Chemical compound CC(=O)OC(C)C1=CC=CC=C1 QUMXDOLUJCHOAY-UHFFFAOYSA-N 0.000 description 3
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 3
- CTSLUCNDVMMDHG-UHFFFAOYSA-N 5-bromo-3-(butan-2-yl)-6-methylpyrimidine-2,4(1H,3H)-dione Chemical compound CCC(C)N1C(=O)NC(C)=C(Br)C1=O CTSLUCNDVMMDHG-UHFFFAOYSA-N 0.000 description 3
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 3
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- WQZGKKKJIJFFOK-PHYPRBDBSA-N alpha-D-galactose Chemical compound OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H]1O WQZGKKKJIJFFOK-PHYPRBDBSA-N 0.000 description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 150000005690 diesters Chemical class 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 229930182830 galactose Natural products 0.000 description 3
- 150000004676 glycans Chemical class 0.000 description 3
- 125000003147 glycosyl group Chemical group 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 3
- 150000002499 ionone derivatives Chemical class 0.000 description 3
- 125000002960 margaryl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 239000005017 polysaccharide Substances 0.000 description 3
- 239000000600 sorbitol Substances 0.000 description 3
- 150000008163 sugars Chemical class 0.000 description 3
- 235000020357 syrup Nutrition 0.000 description 3
- 239000006188 syrup Substances 0.000 description 3
- 150000003512 tertiary amines Chemical class 0.000 description 3
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 3
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 2
- DCNHQNGFLVPROM-QXMHVHEDSA-N (z)-n,n-dimethyloctadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN(C)C DCNHQNGFLVPROM-QXMHVHEDSA-N 0.000 description 2
- MPCAJMNYNOGXPB-SLPGGIOYSA-N 1,5-anhydro-D-glucitol Chemical class OC[C@H]1OC[C@H](O)[C@@H](O)[C@@H]1O MPCAJMNYNOGXPB-SLPGGIOYSA-N 0.000 description 2
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 2
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 2
- WRFXXJKURVTLSY-UHFFFAOYSA-N 2,6-dimethyloctan-2-ol Chemical compound CCC(C)CCCC(C)(C)O WRFXXJKURVTLSY-UHFFFAOYSA-N 0.000 description 2
- DLHQZZUEERVIGQ-UHFFFAOYSA-N 3,7-dimethyl-3-octanol Chemical compound CCC(C)(O)CCCC(C)C DLHQZZUEERVIGQ-UHFFFAOYSA-N 0.000 description 2
- PRNCMAKCNVRZFX-UHFFFAOYSA-N 3,7-dimethyloctan-1-ol Chemical compound CC(C)CCCC(C)CCO PRNCMAKCNVRZFX-UHFFFAOYSA-N 0.000 description 2
- LULAYUGMBFYYEX-UHFFFAOYSA-N 3-chlorobenzoic acid Chemical compound OC(=O)C1=CC=CC(Cl)=C1 LULAYUGMBFYYEX-UHFFFAOYSA-N 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical group OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- XQXPVVBIMDBYFF-UHFFFAOYSA-N 4-hydroxyphenylacetic acid Chemical compound OC(=O)CC1=CC=C(O)C=C1 XQXPVVBIMDBYFF-UHFFFAOYSA-N 0.000 description 2
- NTPLXRHDUXRPNE-UHFFFAOYSA-N 4-methoxyacetophenone Chemical compound COC1=CC=C(C(C)=O)C=C1 NTPLXRHDUXRPNE-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- ZCTQGTTXIYCGGC-UHFFFAOYSA-N Benzyl salicylate Chemical compound OC1=CC=CC=C1C(=O)OCC1=CC=CC=C1 ZCTQGTTXIYCGGC-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 235000014493 Crataegus Nutrition 0.000 description 2
- 241001092040 Crataegus Species 0.000 description 2
- FKUPPRZPSYCDRS-UHFFFAOYSA-N Cyclopentadecanolide Chemical compound O=C1CCCCCCCCCCCCCCO1 FKUPPRZPSYCDRS-UHFFFAOYSA-N 0.000 description 2
- MNQZXJOMYWMBOU-VKHMYHEASA-N D-glyceraldehyde Chemical compound OC[C@@H](O)C=O MNQZXJOMYWMBOU-VKHMYHEASA-N 0.000 description 2
- SRBFZHDQGSBBOR-IOVATXLUSA-N D-xylopyranose Chemical compound O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 2
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 2
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 2
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- 150000007931 macrolactones Chemical class 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- IPWBXORAIBJDDQ-UHFFFAOYSA-N methyl 2-hexyl-3-oxocyclopentane-1-carboxylate Chemical compound CCCCCCC1C(C(=O)OC)CCC1=O IPWBXORAIBJDDQ-UHFFFAOYSA-N 0.000 description 1
- HRGPYCVTDOECMG-RHBQXOTJSA-N methyl cedryl ether Chemical compound C1[C@@]23[C@H](C)CC[C@H]2C(C)(C)[C@]1([H])[C@@](OC)(C)CC3 HRGPYCVTDOECMG-RHBQXOTJSA-N 0.000 description 1
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- QEALYLRSRQDCRA-UHFFFAOYSA-N myristamide Chemical compound CCCCCCCCCCCCCC(N)=O QEALYLRSRQDCRA-UHFFFAOYSA-N 0.000 description 1
- 229940043348 myristyl alcohol Drugs 0.000 description 1
- ZXALKJAAQSZAQQ-UHFFFAOYSA-N n,n-dimethyloctadecan-1-amine;octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCCN(C)C ZXALKJAAQSZAQQ-UHFFFAOYSA-N 0.000 description 1
- SFBHPFQSSDCYSL-UHFFFAOYSA-N n,n-dimethyltetradecan-1-amine Chemical compound CCCCCCCCCCCCCCN(C)C SFBHPFQSSDCYSL-UHFFFAOYSA-N 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- VFLWKHBYVIUAMP-UHFFFAOYSA-N n-methyl-n-octadecyloctadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCN(C)CCCCCCCCCCCCCCCCCC VFLWKHBYVIUAMP-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 239000010502 orange oil Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical class [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003346 palm kernel oil Substances 0.000 description 1
- 235000019865 palm kernel oil Nutrition 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229940100595 phenylacetaldehyde Drugs 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- SATCULPHIDQDRE-UHFFFAOYSA-N piperonal Chemical compound O=CC1=CC=C2OCOC2=C1 SATCULPHIDQDRE-UHFFFAOYSA-N 0.000 description 1
- 229920001983 poloxamer Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229950008882 polysorbate Drugs 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- ROSDSFDQCJNGOL-UHFFFAOYSA-N protonated dimethyl amine Natural products CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 1
- 125000003373 pyrazinyl group Chemical class 0.000 description 1
- 125000003226 pyrazolyl group Chemical class 0.000 description 1
- 125000002098 pyridazinyl group Chemical class 0.000 description 1
- 125000004076 pyridyl group Chemical class 0.000 description 1
- 125000000714 pyrimidinyl group Chemical class 0.000 description 1
- 125000000168 pyrrolyl group Chemical class 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- NJGBTKGETPDVIK-UHFFFAOYSA-N raspberry ketone Chemical compound CC(=O)CCC1=CC=C(O)C=C1 NJGBTKGETPDVIK-UHFFFAOYSA-N 0.000 description 1
- 238000006268 reductive amination reaction Methods 0.000 description 1
- 230000015227 regulation of liquid surface tension Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000004671 saturated fatty acids Chemical group 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229940035044 sorbitan monolaurate Drugs 0.000 description 1
- 239000001593 sorbitan monooleate Substances 0.000 description 1
- 235000011069 sorbitan monooleate Nutrition 0.000 description 1
- 229940035049 sorbitan monooleate Drugs 0.000 description 1
- 239000001570 sorbitan monopalmitate Substances 0.000 description 1
- 235000011071 sorbitan monopalmitate Nutrition 0.000 description 1
- 229940031953 sorbitan monopalmitate Drugs 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 229950003429 sorbitan palmitate Drugs 0.000 description 1
- 229950011392 sorbitan stearate Drugs 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229940037312 stearamide Drugs 0.000 description 1
- 235000003702 sterols Nutrition 0.000 description 1
- 150000003432 sterols Chemical class 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 125000003831 tetrazolyl group Chemical class 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- SWZDQOUHBYYPJD-UHFFFAOYSA-N tridodecylamine Chemical compound CCCCCCCCCCCCN(CCCCCCCCCCCC)CCCCCCCCCCCC SWZDQOUHBYYPJD-UHFFFAOYSA-N 0.000 description 1
- 150000005691 triesters Chemical class 0.000 description 1
- 239000001069 triethyl citrate Substances 0.000 description 1
- VMYFZRTXGLUXMZ-UHFFFAOYSA-N triethyl citrate Natural products CCOC(=O)C(O)(C(=O)OCC)C(=O)OCC VMYFZRTXGLUXMZ-UHFFFAOYSA-N 0.000 description 1
- 235000013769 triethyl citrate Nutrition 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical group 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 1
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 1
- 235000012141 vanillin Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- ZFNVDHOSLNRHNN-UHFFFAOYSA-N xi-3-(4-Isopropylphenyl)-2-methylpropanal Chemical compound O=CC(C)CC1=CC=C(C(C)C)C=C1 ZFNVDHOSLNRHNN-UHFFFAOYSA-N 0.000 description 1
- PHXATPHONSXBIL-UHFFFAOYSA-N xi-gamma-Undecalactone Chemical compound CCCCCCCC1CCC(=O)O1 PHXATPHONSXBIL-UHFFFAOYSA-N 0.000 description 1
- FUQAYSQLAOJBBC-PAPYEOQZSA-N β-caryophyllene alcohol Chemical compound C1C[C@](C2)(C)CCC[C@]2(O)[C@H]2CC(C)(C)[C@@H]21 FUQAYSQLAOJBBC-PAPYEOQZSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/50—Perfumes
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/835—Mixtures of non-ionic with cationic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/001—Softening compositions
- C11D3/0015—Softening compositions liquid
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/62—Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/667—Neutral esters, e.g. sorbitan esters
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Detergent Compositions (AREA)
Abstract
The subject invention involves liquid fabric softener compositions for use in the rinse cycle of a laundering process, and concentrates of such compositions, the compositions and concentrates comprising: (a) from about 0.4 % to about 24 % cationic fabric softener; (b) from about 0.3 % to about 10 %
hydrophobic perfume; (c) from about 0.4 % to about 20 % nonionic surfactant;
(d) from 0 % to about 3 % water-soluble ionizable inorganic salt; (e) from about 60 % to about 98.5 % water; and (f) from 0 % to about 10 % other ingredients; the composition having a ratio of cationic softener to perfume of from about 1:3 to about 5:1, and a ratio of cationic softener to nonionic surfactant of from about 1:2 to about 4:1, the amount of cationic softener plus nonionic surfactant being from about 1 % to about 30 %; and the composition being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein. The subject invention also involves processes for making such compositions and concentrates.
hydrophobic perfume; (c) from about 0.4 % to about 20 % nonionic surfactant;
(d) from 0 % to about 3 % water-soluble ionizable inorganic salt; (e) from about 60 % to about 98.5 % water; and (f) from 0 % to about 10 % other ingredients; the composition having a ratio of cationic softener to perfume of from about 1:3 to about 5:1, and a ratio of cationic softener to nonionic surfactant of from about 1:2 to about 4:1, the amount of cationic softener plus nonionic surfactant being from about 1 % to about 30 %; and the composition being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein. The subject invention also involves processes for making such compositions and concentrates.
Description
i STABLE HIGH F~ERFUME LOW ACTIVE FABRIC SOFTENEFt_ COMPOSITIONS
TECHNICAL FIELD
The subject invention relates to aqueous-based fabric softener compositions having relatively high levels of perfume and low levels of cationic softener active, the compositions being intended for use in ths~
rinse i o cycle of laundry washing processes. The subject invention also involves concentrates of such compositions, and processes for making such compositions and concentrates.
BACKGROUND OF THE INV~NTIOI~II
Fabric softening or conditioning compositions, intended for use in the 1 s rinse cycle of the laundering process, generally are aqueous dispemions containing a cationic softener as the active material. Known cationic softeners are typically compounds with a positively charged nitrogen atom and at least one hydrophobic long-chain substituent in the molEacuie.
Suitable cationic softeners are mostly quaternary ammonium salts and 2 o imidazolinium salts, and to a lesser extent, alkylated partly elthoxylated polyamines, amine amides, ester amines, and di-quaternary compound;.
Fabric softening or conditioning compositions for use in household washing machines during the rinse cycle are marketed extensively. They provide a countering influence on the disorder of the pile of the fibers alt the 2 s textile surface as well as an electrostatic charge on it by adsorbing on the textile substrate. Such treatment imparts fluffiness to the fabric, and gives a more pleasant sensation when the fabrics are worn next to the skin. The cationic softeners present in these compositions also serve as carriers for perfume, imparting long-lasting freshness to the laundered fabrics.
TECHNICAL FIELD
The subject invention relates to aqueous-based fabric softener compositions having relatively high levels of perfume and low levels of cationic softener active, the compositions being intended for use in ths~
rinse i o cycle of laundry washing processes. The subject invention also involves concentrates of such compositions, and processes for making such compositions and concentrates.
BACKGROUND OF THE INV~NTIOI~II
Fabric softening or conditioning compositions, intended for use in the 1 s rinse cycle of the laundering process, generally are aqueous dispemions containing a cationic softener as the active material. Known cationic softeners are typically compounds with a positively charged nitrogen atom and at least one hydrophobic long-chain substituent in the molEacuie.
Suitable cationic softeners are mostly quaternary ammonium salts and 2 o imidazolinium salts, and to a lesser extent, alkylated partly elthoxylated polyamines, amine amides, ester amines, and di-quaternary compound;.
Fabric softening or conditioning compositions for use in household washing machines during the rinse cycle are marketed extensively. They provide a countering influence on the disorder of the pile of the fibers alt the 2 s textile surface as well as an electrostatic charge on it by adsorbing on the textile substrate. Such treatment imparts fluffiness to the fabric, and gives a more pleasant sensation when the fabrics are worn next to the skin. The cationic softeners present in these compositions also serve as carriers for perfume, imparting long-lasting freshness to the laundered fabrics.
3 o It is an aspect of the subject invention to provide low-cost liquid fabric softening compositions having a relatively low level of cationic softener.
It is a further aspect of the subject invention to provide such compositions which have a relatively high level of perfume to provide desired freshness to laundered fabrics.
3 s It is also an aspect of the subject invention to provide concentrates of such compositions.
It is also an aspect of the subject invention to provide such compositions and concentrates with desired high viscosity.
It is also an aspect of the subject invention to provide such compositions and concentrates which are stable over long periods of time;
the compositions and concentrates maintain their desired viscosity and do not separate into discrete hydrophilic and hydrophobic phases.
It is also an aspect of the subject invention to provide processes for making such compositions and concentrates.
SUMMARY OF THE INVENTION
I o The subject invention involves single strength liquid fabric softener compositions for use in the rinse cycle of a , laundering process, the composition comprising:
(a) from about 0.4% to about 5% cationic fabric softener;
(b) from about 0.3% to about 1.2% hydrophobic perfume;
1 s (c) from about 0.4% to about 5% nonionic surfactant;
(d) from 0% to about 1 % water-soluble ionizable inorganic salt;
(e) from about 90°~ to about 98.5% water; and (f) from 0°~6 to about 2% other ingredients;
the ratio of cationic softener to perfume being from about 1:3 to about 5:1;
2 o the ratio of cationic so~ener to nonionic surfactant being from about: 1:2 to about 4:1, and the amount of cationic softener plus nonionic surfactant being from about 1 % to about 7%. The compositions consist of a liquid aqueous phase with discrete hydrophobic particles dispersed substantially unifom~ly therein. The compositions preferably have a viscosity of from 2 5 about 50 cp to about 500 cp.
The subject invention also involves concentrates of such single strength compositions, the concentrates comprising an amount of cationic softener plus nonionic surfactant of up to about 30°~, and up to about 10%
hydrophobic perfume.
3 o The subject invention also involves processes for makings such compositions and concentrates.
DETAILED DESCRIPTION OP THE INVENTION
The subject invention compositions include, at a minimum, a cationic fabric softener, a hydrophobic perfume, a nonionic surfactant, and water. All 3 s percentages disclosed herein are weight percent unless otherwise indicated.
The subject invention involves single strength fabric softener compositions. As used herein, "single strength'° refers to compositions which are intended for addition to the rinse cycle of the laundering process as is. The subject invention also involves concentrates of such single strength compositions, the concentrates preferably being diluted with water prior to addition to the rinse cycle. Optionally, such concentrates can be added directly to the rinse water, in which case the recommended usage amount would be correspondingly altered. Typical concentrates are 2x, 3x, 5x and 10x (1x being single strength), which are then diluted at the time of use or the amount used is correspondingly reduced.
The compositions are in the form of a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly throughout the aqueous phase. The hydrophobic particles are believed to comprise the perfume surrounded by the cationic softener and nonionic surtactant. The size distribution of the particles is determined using known methods, such as by use of a Microtrac;~ SRA100 particle size analyzer from Leecls &
Northrap Corp. Such methods generally provide a volume percent result which, for particles such as those in the subject invention compositions with a substantially uniform vveight distribution, is substantially equivalent to weight percent.
The diameter of the hydrophobic particles of the subject compositions generally approximates a normal distribution. It has been found that compositions having a large percentage of particles which are either too big (diameter of more than about 50 microns) or too small (diameter of less than 1 or 2 microns) are unstable. The mean diameter of the particles is preferably from about 3 microns to about 15 microns, more preferably from about 4 microns to about 12 microns, more preferably still from about 5 microns to about 9 microns, also preferably from about 4 microns to about 6 microns; 90% of the partic6es have a diameter preferably less than aboul: 50 microns, more preferably Iless than about 30 microns, more preferably still less than about 20 microns, still more preferably less than about 12 microns;
and 90% of the particles have a diameter preferably greater than about 1 micron, more preferably greater than about 2 microns, more preferably still greater than about 3 microns.
' The subject invention compositions have a lower ratio of cationic softener to pertume than is typically found in commercial products. It has ' been found that compositions with such lower ratio are typically unstable;
they have a tendency to separate into discrete hydrophobic and hydrophilic phases or layers, the hydrophobic layer comprising much of the pertume.
The subject invention compositions are formulated to avoid such phase separation problems.
Compositions and concentrates of the subject invention having a low viscosity of as low as 10 cp, or even 5 cp, can be produced. However, compositions of higher viscosity are preferred for aesthetic reasons. The fabric softening compositions and concentrates of the subject invention preferably have a viscosity of from about 50 cp to about 500 cp, more preferably from about 80 cp to about 300 cp, more preferably still from about 100 cp to about 200 cp. Such higher viscosity compositions present additional challenges to achieving stable compositions and concentrates.
As used herein, "alkyl" means hydrocarbon chain which may be straight or branched, substituted or unsubstituted, and saturated or unsaturated with one or more double bonds. As used herein, "alkanyl"
means saturated alkyl, and "alkenyl" means alkyl with one or more double bonds Unless otherwise indicated, alkyl is preferably as follows. Preferred alkyl is straight chain. Preferred alkyl is unsubstituted. Alkyl having less than 8 carbon atoms is preferably saturated. Alkyl having 8 or more carbon atoms is preferably saturated or unsaturated with one or two double bonds.
Where alkyl chain lengths of up to 20 or more carbon atoms are disclosed, about C12-C20 is preferred, and about Clq,-C1g is more preferred. Where alkyl chain lengths of 4 or less are disclosed, C1 and C2 are preferred.
Cationic Fabric Softeners Cationic fabric softeners useful in the subject invention compositions include compounds having a quaternary nitrogen and at least 1 hydrophobic hydrocarbon moiety. Examples of such compounds include quaternary ammonium compounds and compounds containing a nitrogen present in a cyclic ammonium moiety.
The cationics softeners which are useful herein include the entire class of quaternary ammonium compounds which comprise at least one alkyl moiety having from about 12 to about 30 carbon atoms. Such compounds are, only in part, be represented by the following general formula:
R R
xa-R~ R"
a wherein R comprises an alkyl having from about 11 to about 30, preferably from about 12 to about 22, more preferably from about 13 to about 18, carbon atoms. Each R" is independently R or R'; preferably one R" is R and the other is R'. When there are 2 or 3 R groups, one such R group can be arylalkanyl, preferably phE:nylalkanyl, the alkanyl having from 1 to about 8, preferably from 1 to about 3, more preferably 1, carbon atoms. R' may be lower alkanyl, from about C1 to about C4. Preferably each R.' is independently unsubstitut;ed alkanyl or hydroxyalkanyl, such as methyl, ethyl, propyl, or hydroxyethyl. Two of the R' groups may, together with the nitrogen and/or one or more other heteroatoms (preferably nitrogen), form a 5- or 6-membered heteroaryl or heterocyclic ring, such as imidazolyl, tetrazolyl, pyridyl, pyrrolyl, pyrazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, or saturated analog thereof. .Xa- is any softener composition compatible anion, e.g. halo (preferably chloride or bromide), sulfate, methylsulfate, ethylsulfate, nitrate, acetate, phosphate, benzoate, formate, lactate, oleate, and the like. The symbol "'a" represents the ionic valance of the anion and also, therefore, the number of quaternary cationic moieties in association therewith. The anion is merely present as a counterion of the positively charged quaternary ammonium compounds. The scope of this invention is not limited to any particular anion. Preferred anions are chloride and methylsulfate.
Long chain alkyl moieties having from about, 12 to about 30 carbon atoms, which are depicted by various "R" and 'T' symbols herein c;an represent a single alkyl moiety or a mixture of different alkyl moieties.
Mixtures of such alkyl moieties, in the form of fatty acids or fatty alcohols, are readily and inexpensively obtained from various natural fat and oil sources, such as tallow, lard, coconut oil, soybean oil, palm stearin oil, palm kernel oil, etc. Mixtures of such alkyl chains are referred to herein by referring to such sources. ,All the fatty moieties from such a source can be used, or only part (or a "cut"), of fatty moieties having the chain length and degree of saturation desired.
Alkyl moieties obtained from tallow are particularly preferred for many of the quaternary ammonium compounds useful in the subject invention, because of their preferred chain length distribution. The term "tallow", as used herein, means glycerides or fatty or alkyl derivatives therefrom, where the fatty acid mixtures typically have an approximate carbon chain length distribution of about 2-4% myristic, 25-35% palmitic, 20-25% stearic, 1-3%
°
palmitoleic, 35-45% oleic, and 2-4% linoleic. Other sources with similar fatty acid distributions, such as the fatty acids derived from palm stearin oil and from various animal tallows and lard, are also included within the term tallow. The tallow can also be hardened (i.e., hydrogenated) to convert part or all of the unsaturated fatty acid or alkyl moieties to saturated fatty acid or alkyl moieties.
Preferred single alkyl long chain moieties in the subject cationic softeners include stearyl, oleyl, palmityl, palmitoleyl, myristyl, and lauryl.
Preferred cationic softeners have two or more, preferably two, long-chain alkyl groups having from about 12 to about 24 carbon atoms or one said group and an arylalkyl group.
Softeners useful in the subject invention compositions include acyclic quaternary ammonium salts have the formula:
T
T N+ T' Xa- (l~
T"
a wherein each T is independently about C12-C24, preferably about C14-C18 alkyl; alternatively, one T may be arylalkyl, preferably phenylalkyl, the alkyl portion preferably being about C1-C4 alkanyl, the phenylalkyl most preferably being benzyl;
T' is about C1-C4, preferably C1 or C2, alkanyl or hydroxyalkanyl, preferably alkanyl; , T' is T or T', preferably T'; and Xa- is an anion as defined above.
Examples of such softeners are the well-known dialkyldimethylammonium salts, such as ditallowdimethylammonium chloride, ditallowdimethylammonium methylsulfate, di(hydrogenatedtallow)-_7_ dimethylammonium chloride, dihexadecyldiethylammonium chloride, distearyidimethylammonium chloride, dibehenyldimethylammonium chloride, di(coconut alkyl)dimethylammonium chloride. Di(hydrogenatedtallow)-dimethylammonium chloride and ditallowdimethylammonium chloride are preferred. Examples of commercially available dialkyldimethyl-ammonium salts usable in the present invention are di(hydrogenatedtallow)dimethylammonium chloride (trade name Adogen~
442), ditallowdimethylammonium chloride (trade name Adogen~ 470), distearyldimethylammonium chloride (trade name Arosurf~ TA-100), all available from Witco Chemical Company. Dibehenyldimethylammonium chloride is sold under the trade name Kemamine~ Q-2802C by Hurnko Chemical Division of Witco Chemical Corporation. Dimethylstearylbenzyl ammonium chloride is sold under the trade names Varisoft~ SDC by Witco Chemical Company and Arnmonyx~ 490 by Onyx Chemical Company.
.Cationic softeners useful in the subject invention compositions also include quaternary ammonium compounds having the Formula (III) or (IV), below:
+ N -_ (CH2)n-Q-T1 Xa- (III
a ~R3 -(C H2)n- i H
Xa- (M
a wherein R1 is -(CH2)n-Q-T1 or T2;
R2 is -(CH2)n-Q-T1 or T2 or R3;
-g-each R3 is independently about C1-C4 alkanyl or about C1-C4 hydroxyalkanyl, or H; preferably C1 or C2 alkanyl or hydroxyalkanyl, preferably alkanyl;
each Q is selected from -O-C(O)-, -C(O)-O-, -O-C(O)-O-, -NR4-C(O)-, and -C(O)-NR4-; preferably from -O-C(O)- and -C(O)-O-;
R4 is H or about C1-C4 alkanyl or about C~-Ca hvdroxvalkanvl preferably H;
each T1 is independently (the same or different) about C11-C23 alkyl, preferably about C13-C17 each T2 is independently about C12-C24 alkyl, preferably about C14-C 18;
each n is an integer from 1 to about 4, preferably 2; and Xa- is a softener-compatible anion, as described hereinabove.
Examples of such quaternary ammonium compounds suitable for use in the subject compositions herein include:
1) N,N-di(tallowyl-oxy-ethyl)-N,N-dimethylammonium chloride;
2) N,N-di(tallowyl-oxy-ethyl)-N-methyl-N-(2-hydroxyethyl)ammonium chloride;
3) N,N-di(2-tallowyloxy-2-oxo-ethyl)-N,N-dimethylammonium chloride;
It is a further aspect of the subject invention to provide such compositions which have a relatively high level of perfume to provide desired freshness to laundered fabrics.
3 s It is also an aspect of the subject invention to provide concentrates of such compositions.
It is also an aspect of the subject invention to provide such compositions and concentrates with desired high viscosity.
It is also an aspect of the subject invention to provide such compositions and concentrates which are stable over long periods of time;
the compositions and concentrates maintain their desired viscosity and do not separate into discrete hydrophilic and hydrophobic phases.
It is also an aspect of the subject invention to provide processes for making such compositions and concentrates.
SUMMARY OF THE INVENTION
I o The subject invention involves single strength liquid fabric softener compositions for use in the rinse cycle of a , laundering process, the composition comprising:
(a) from about 0.4% to about 5% cationic fabric softener;
(b) from about 0.3% to about 1.2% hydrophobic perfume;
1 s (c) from about 0.4% to about 5% nonionic surfactant;
(d) from 0% to about 1 % water-soluble ionizable inorganic salt;
(e) from about 90°~ to about 98.5% water; and (f) from 0°~6 to about 2% other ingredients;
the ratio of cationic softener to perfume being from about 1:3 to about 5:1;
2 o the ratio of cationic so~ener to nonionic surfactant being from about: 1:2 to about 4:1, and the amount of cationic softener plus nonionic surfactant being from about 1 % to about 7%. The compositions consist of a liquid aqueous phase with discrete hydrophobic particles dispersed substantially unifom~ly therein. The compositions preferably have a viscosity of from 2 5 about 50 cp to about 500 cp.
The subject invention also involves concentrates of such single strength compositions, the concentrates comprising an amount of cationic softener plus nonionic surfactant of up to about 30°~, and up to about 10%
hydrophobic perfume.
3 o The subject invention also involves processes for makings such compositions and concentrates.
DETAILED DESCRIPTION OP THE INVENTION
The subject invention compositions include, at a minimum, a cationic fabric softener, a hydrophobic perfume, a nonionic surfactant, and water. All 3 s percentages disclosed herein are weight percent unless otherwise indicated.
The subject invention involves single strength fabric softener compositions. As used herein, "single strength'° refers to compositions which are intended for addition to the rinse cycle of the laundering process as is. The subject invention also involves concentrates of such single strength compositions, the concentrates preferably being diluted with water prior to addition to the rinse cycle. Optionally, such concentrates can be added directly to the rinse water, in which case the recommended usage amount would be correspondingly altered. Typical concentrates are 2x, 3x, 5x and 10x (1x being single strength), which are then diluted at the time of use or the amount used is correspondingly reduced.
The compositions are in the form of a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly throughout the aqueous phase. The hydrophobic particles are believed to comprise the perfume surrounded by the cationic softener and nonionic surtactant. The size distribution of the particles is determined using known methods, such as by use of a Microtrac;~ SRA100 particle size analyzer from Leecls &
Northrap Corp. Such methods generally provide a volume percent result which, for particles such as those in the subject invention compositions with a substantially uniform vveight distribution, is substantially equivalent to weight percent.
The diameter of the hydrophobic particles of the subject compositions generally approximates a normal distribution. It has been found that compositions having a large percentage of particles which are either too big (diameter of more than about 50 microns) or too small (diameter of less than 1 or 2 microns) are unstable. The mean diameter of the particles is preferably from about 3 microns to about 15 microns, more preferably from about 4 microns to about 12 microns, more preferably still from about 5 microns to about 9 microns, also preferably from about 4 microns to about 6 microns; 90% of the partic6es have a diameter preferably less than aboul: 50 microns, more preferably Iless than about 30 microns, more preferably still less than about 20 microns, still more preferably less than about 12 microns;
and 90% of the particles have a diameter preferably greater than about 1 micron, more preferably greater than about 2 microns, more preferably still greater than about 3 microns.
' The subject invention compositions have a lower ratio of cationic softener to pertume than is typically found in commercial products. It has ' been found that compositions with such lower ratio are typically unstable;
they have a tendency to separate into discrete hydrophobic and hydrophilic phases or layers, the hydrophobic layer comprising much of the pertume.
The subject invention compositions are formulated to avoid such phase separation problems.
Compositions and concentrates of the subject invention having a low viscosity of as low as 10 cp, or even 5 cp, can be produced. However, compositions of higher viscosity are preferred for aesthetic reasons. The fabric softening compositions and concentrates of the subject invention preferably have a viscosity of from about 50 cp to about 500 cp, more preferably from about 80 cp to about 300 cp, more preferably still from about 100 cp to about 200 cp. Such higher viscosity compositions present additional challenges to achieving stable compositions and concentrates.
As used herein, "alkyl" means hydrocarbon chain which may be straight or branched, substituted or unsubstituted, and saturated or unsaturated with one or more double bonds. As used herein, "alkanyl"
means saturated alkyl, and "alkenyl" means alkyl with one or more double bonds Unless otherwise indicated, alkyl is preferably as follows. Preferred alkyl is straight chain. Preferred alkyl is unsubstituted. Alkyl having less than 8 carbon atoms is preferably saturated. Alkyl having 8 or more carbon atoms is preferably saturated or unsaturated with one or two double bonds.
Where alkyl chain lengths of up to 20 or more carbon atoms are disclosed, about C12-C20 is preferred, and about Clq,-C1g is more preferred. Where alkyl chain lengths of 4 or less are disclosed, C1 and C2 are preferred.
Cationic Fabric Softeners Cationic fabric softeners useful in the subject invention compositions include compounds having a quaternary nitrogen and at least 1 hydrophobic hydrocarbon moiety. Examples of such compounds include quaternary ammonium compounds and compounds containing a nitrogen present in a cyclic ammonium moiety.
The cationics softeners which are useful herein include the entire class of quaternary ammonium compounds which comprise at least one alkyl moiety having from about 12 to about 30 carbon atoms. Such compounds are, only in part, be represented by the following general formula:
R R
xa-R~ R"
a wherein R comprises an alkyl having from about 11 to about 30, preferably from about 12 to about 22, more preferably from about 13 to about 18, carbon atoms. Each R" is independently R or R'; preferably one R" is R and the other is R'. When there are 2 or 3 R groups, one such R group can be arylalkanyl, preferably phE:nylalkanyl, the alkanyl having from 1 to about 8, preferably from 1 to about 3, more preferably 1, carbon atoms. R' may be lower alkanyl, from about C1 to about C4. Preferably each R.' is independently unsubstitut;ed alkanyl or hydroxyalkanyl, such as methyl, ethyl, propyl, or hydroxyethyl. Two of the R' groups may, together with the nitrogen and/or one or more other heteroatoms (preferably nitrogen), form a 5- or 6-membered heteroaryl or heterocyclic ring, such as imidazolyl, tetrazolyl, pyridyl, pyrrolyl, pyrazolyl, pyrazinyl, pyrimidinyl, pyridazinyl, or saturated analog thereof. .Xa- is any softener composition compatible anion, e.g. halo (preferably chloride or bromide), sulfate, methylsulfate, ethylsulfate, nitrate, acetate, phosphate, benzoate, formate, lactate, oleate, and the like. The symbol "'a" represents the ionic valance of the anion and also, therefore, the number of quaternary cationic moieties in association therewith. The anion is merely present as a counterion of the positively charged quaternary ammonium compounds. The scope of this invention is not limited to any particular anion. Preferred anions are chloride and methylsulfate.
Long chain alkyl moieties having from about, 12 to about 30 carbon atoms, which are depicted by various "R" and 'T' symbols herein c;an represent a single alkyl moiety or a mixture of different alkyl moieties.
Mixtures of such alkyl moieties, in the form of fatty acids or fatty alcohols, are readily and inexpensively obtained from various natural fat and oil sources, such as tallow, lard, coconut oil, soybean oil, palm stearin oil, palm kernel oil, etc. Mixtures of such alkyl chains are referred to herein by referring to such sources. ,All the fatty moieties from such a source can be used, or only part (or a "cut"), of fatty moieties having the chain length and degree of saturation desired.
Alkyl moieties obtained from tallow are particularly preferred for many of the quaternary ammonium compounds useful in the subject invention, because of their preferred chain length distribution. The term "tallow", as used herein, means glycerides or fatty or alkyl derivatives therefrom, where the fatty acid mixtures typically have an approximate carbon chain length distribution of about 2-4% myristic, 25-35% palmitic, 20-25% stearic, 1-3%
°
palmitoleic, 35-45% oleic, and 2-4% linoleic. Other sources with similar fatty acid distributions, such as the fatty acids derived from palm stearin oil and from various animal tallows and lard, are also included within the term tallow. The tallow can also be hardened (i.e., hydrogenated) to convert part or all of the unsaturated fatty acid or alkyl moieties to saturated fatty acid or alkyl moieties.
Preferred single alkyl long chain moieties in the subject cationic softeners include stearyl, oleyl, palmityl, palmitoleyl, myristyl, and lauryl.
Preferred cationic softeners have two or more, preferably two, long-chain alkyl groups having from about 12 to about 24 carbon atoms or one said group and an arylalkyl group.
Softeners useful in the subject invention compositions include acyclic quaternary ammonium salts have the formula:
T
T N+ T' Xa- (l~
T"
a wherein each T is independently about C12-C24, preferably about C14-C18 alkyl; alternatively, one T may be arylalkyl, preferably phenylalkyl, the alkyl portion preferably being about C1-C4 alkanyl, the phenylalkyl most preferably being benzyl;
T' is about C1-C4, preferably C1 or C2, alkanyl or hydroxyalkanyl, preferably alkanyl; , T' is T or T', preferably T'; and Xa- is an anion as defined above.
Examples of such softeners are the well-known dialkyldimethylammonium salts, such as ditallowdimethylammonium chloride, ditallowdimethylammonium methylsulfate, di(hydrogenatedtallow)-_7_ dimethylammonium chloride, dihexadecyldiethylammonium chloride, distearyidimethylammonium chloride, dibehenyldimethylammonium chloride, di(coconut alkyl)dimethylammonium chloride. Di(hydrogenatedtallow)-dimethylammonium chloride and ditallowdimethylammonium chloride are preferred. Examples of commercially available dialkyldimethyl-ammonium salts usable in the present invention are di(hydrogenatedtallow)dimethylammonium chloride (trade name Adogen~
442), ditallowdimethylammonium chloride (trade name Adogen~ 470), distearyldimethylammonium chloride (trade name Arosurf~ TA-100), all available from Witco Chemical Company. Dibehenyldimethylammonium chloride is sold under the trade name Kemamine~ Q-2802C by Hurnko Chemical Division of Witco Chemical Corporation. Dimethylstearylbenzyl ammonium chloride is sold under the trade names Varisoft~ SDC by Witco Chemical Company and Arnmonyx~ 490 by Onyx Chemical Company.
.Cationic softeners useful in the subject invention compositions also include quaternary ammonium compounds having the Formula (III) or (IV), below:
+ N -_ (CH2)n-Q-T1 Xa- (III
a ~R3 -(C H2)n- i H
Xa- (M
a wherein R1 is -(CH2)n-Q-T1 or T2;
R2 is -(CH2)n-Q-T1 or T2 or R3;
-g-each R3 is independently about C1-C4 alkanyl or about C1-C4 hydroxyalkanyl, or H; preferably C1 or C2 alkanyl or hydroxyalkanyl, preferably alkanyl;
each Q is selected from -O-C(O)-, -C(O)-O-, -O-C(O)-O-, -NR4-C(O)-, and -C(O)-NR4-; preferably from -O-C(O)- and -C(O)-O-;
R4 is H or about C1-C4 alkanyl or about C~-Ca hvdroxvalkanvl preferably H;
each T1 is independently (the same or different) about C11-C23 alkyl, preferably about C13-C17 each T2 is independently about C12-C24 alkyl, preferably about C14-C 18;
each n is an integer from 1 to about 4, preferably 2; and Xa- is a softener-compatible anion, as described hereinabove.
Examples of such quaternary ammonium compounds suitable for use in the subject compositions herein include:
1) N,N-di(tallowyl-oxy-ethyl)-N,N-dimethylammonium chloride;
2) N,N-di(tallowyl-oxy-ethyl)-N-methyl-N-(2-hydroxyethyl)ammonium chloride;
3) N,N-di(2-tallowyloxy-2-oxo-ethyl)-N,N-dimethylammonium chloride;
4) N,N-di(2-tallowyloxyethylcarbonyloxyethyl)-N,N-dimethylammonium chloride;
5) N-(2-tallowoyloxy-2-ethyl)-N-(2-tallowyloxy-2-oxo-ethyl)-N,N-dimethylammonium chloride;
6) N,N,N-tri(tallowyl-oxy-ethyl)-N-methylammonium chloride;
7) N-(2-tallowyloxy-2-oxo-ethyl)-N-(tallowyl)-N,N-dimethylammonium chloride; and 8) 1,2-ditallowyloxy-3-trimethylammoniopropane chloride;
and mixtures of any of the above materials.
Of these, compounds 1-7 are examples of compounds ~of ~Formu~ta-(III); compound 8 is a compound of Formula (IV).
Particularly preferred is N,N-di(tallowoyl-oxy-ethyl)-N,N-dimethyl-ammonium chloride, where ~ the tallow chains are at least partially unsaturated.
The level of unsaturation of the tallow chain can be measured by the Iodine Value of the corresponding fatty acids, which is preferably from 5 to 100 with two categories of compounds being distinguished, having an Iodine Value below or above 25. For compounds of Formula (III) made from tallow _g_ fatty acids having an Iodine Value of from 5 to 25, preferably 15 to 20, it is preferred that a cis/tran s isomer weight ratio be greater than about X0/70, preferably greater than about 50/50 and more preferably greater than about 70/30. For compounds of Formula (III) made from tallow fatty acids having an Iodine Value of above 25, the ratio of cis to trans isomers is less critical.
Other examples of suitable quaternary ammoniums for Formulae (III) and (IV) are obtained by, e.g., replacing "tallow" in the above compounds with, for example, coco, palm, lauryl, oleyl, ricinoleyl, stearyl, palmityl, ar the like, said fatty aryl chains being either fully saturated, or preferably at least partly unsaturated; replacing "methyl" in the above compounds with esthyl, ethoxy, propyl, propoxy, isopropyl, butyl, isobutyl or t-butyl; replacing "chloride" in the above compounds with bromide, methylsulfate, formate, sulfate, nitrate, and the like.
Certain diamido quaternary ammonium salts useful in the subject invention, largely a subset of Formula (III), have the formula:
T C NH (CH2)n N (CH2)n NH C-T1 Xa-a wherein each n is independently an integer from 1 to about 3, preferably 2;
each T1 is indepern~ently about C13-C21 alkyl, preferably about C15-C17 alkyl;
R3 and R4 are each independently about C1-C4 alkanyl or hydroxyalkanyl, preferably C1-C2; or, differing from general Formula (III), R4 is -(CyH2y0)mH, wherein rn is an integer from 1 to about 5, y is 2 or 3; and Xa- is an anion as described hereinabove.
Preferred examples of such softeners are those where n is 2, R3 is methyl, R4 is two or three ethoxy or propoxy groups, and T1C(O) is stearyl, oleyl, palmityl, palmitoleyl, tallowyl, or hydrogenated tallowyf. Particul<~rly preferred examples of such softeners are methylbis(tallowamidoethyl)(2-hydroxyethyl)ammonium methylsulfate and methylbis(hydrogenated tallowamidoethyl)(2-hydroxyethyl)ammonium methylsulfate; these materials are available from Witco Chemical Company under the trade names Varisoft~ 222 and Varisoft~ 110, respectively.
Certain ester quaternary ammonium compounds useful in the subject invention, also largely a subset of Formula (III), have the formula:
I(R5)4-m - N+ - ((CH2)n - ~' - R6)mla Xa- (VI) wherein each Y is -O-(O)C-, or -C(O)-O-;
m is 2 or 3; m is preferably 2 resulting in diester quaternary ammonium (DEQA) compounds;
each n is an integer from 1 to about 4, preferably 2;
each R5 is independently a short chain about C1-Cg, preferably about C1-C3, alkanyl or hydroxyalkanyl or a benzyl, preferably alkanyl or hydroxyalkanyl, e.g., methyl (most preferred), ethyl, propyl, hydroxyethyl, and the like;
each R6 is independently a long chain, about C1 p-C23, alkyl, preferably about C13-C19 alkyl, most preferably about C15-C17 straight chain alkyl; and the counterion Xa- is as defined above.
Examples of such softeners (wherein all long-chain alkyl substituents are straight-chain) include the following:
1 ) (CH3)2 N+(CH2CH20C(O)R6)2 CI-2) (HOCH(CH3)CH2)(CH3)N+(CH2CH20C(O)C15H31)2 Br 3) (CH3)2N+(CH2CH20C(O)C17H35)2 CI-4) (CH3)(C2H5) N+(CH2CH20C(O)C13H27)2 I-5) (C3H7)(C2H5) N+(CH2CH20C(O)C15H31)2 -S04CH3 6) (C2H5)2 N+-CH2CH20C(O)C15H31 CI-I
CH2CH20C(O)C17H35 7) (CH2CH20H)(CH3) N+(CH2CH20C(O)R6)2 CI-wherein -C(O)RE is derived from soft tallow and/or hardened tallow fatty acids. Especially preferred is diester of soft and/or hardened tallow fatty acids with di(hydroxyethyl)dimethylammonium chloride, also called di(tallowoyloxyethyl)dimethylammonium chloride. Also preferred is di(stearoyloxyethyl) dimethylammonium chloride.
Since the foregoing DEQA compounds are somewhat labile to hydrolysis, they should be handled rather carefully when used to formulate the compositions herein. For example, stable liquid compositions herein are formulated at a pH in the range of about 2 to about 5, preferably from about 2 to about 4.5, more preferably from about 2 to about 4. The pH can be adjusted by the addition of a Bronsted acid. DEQA softeners and methods for making them are disclosed in PCT Patent Application No. W094/20597, published September 15, 1994.
Quaternary imidazolinium compounds useful as cationic softeners in the subject invention compositions include those having the formula:
N\ +N \ O Xa_ NI~
a wherein Z is NR9 or O; R9 being H or R7, preferably H;
R7 is about C1-C4 alkanyl, preferably methyl or ethyl;
each R8 is independently about Cg-C25, preferably about C 11-C ~ g, more preferably about C 13-C 17 alkyl, preferably alkanyi;
Xa- is an anion as defined above.
Examples of such cationic softeners useful in the subject invention include 1-methyl-1-(tallowylamido)ethyl-2-tallowyl-4,5-dihydroimidazolinium methyisulfate and 1-methyl-1-(hydrogenated tallowylamido)ethyl-2-(hydrogenatedtallowyl)-4,5-dihydroimidazolinium methylsulfate, sold under the trade names Varisoft~ 475 and Varisoft~ 445, respectively, by Witco Chemical Company; 1-methyl-1-(palmitoyiamido)ethyl-2-octadecyl-4,5-dihydroimidazolinium chloride. Other ' related examples include 2-heptadecyl-1-methyl-1-(2-stearylamido)ethyl-imidazolinium chloride; and 2-lauryl-1-hydroxyethyl-1-oleyl-imidazolinium chloride.
The cationic softener of the subject invention can also comprise a carboxylic acid salt of a tertiary amine and/or ester amine having the formula:
O
R11 N H p-C -R13 (VIIQ
wherein R ~ 0 is a long chain aliphatic group containing from about 8 to about 30 carbon atoms; each R 11 and R ~ 2 are selected from the group consisting of an alkyl group containing from about 1 to about 30 carbon atoms, a hydroxyalkyl group of the formula: R140H wherein. R14 is an alkylene group of from about 2 to about 30 carbon atoms, and alkyl ether groups of the formula: R150(CSH2s0)r wherein R15 is alkanyl or alkenyl group having from about 1 to about 30 carbon atoms or H, s is an integer from 1 to about 5, preferably 2 or 3, and r is an integer from about 1 to about 30; wherein R 10, R 11, R 12, R 14 and R ~ 5 can be ester intemrpted groups; and wherein R 13 is selected from unsubstituted alkanyl, alkenyl, aryl, alkaryl and aralkyl groups having from about 8 to about 30 carbon atoms and substituted alkanyl, alkenyl, aryl, alkaryl, and aralkyl of from about 1 to about 30 carbon atoms wherein the subst'ttutents are selected from halogen, carboxyl, and hyd roxyl.
Preferably, R10 is alkyl containing from about 12 to about 22 carbon atoms, R 12 is alkyl of from about 1 to about 22 carbon atoms, and R ~ 0 is alkyl of from about 1 to about 22 carbon atoms. Particularly preferred tertiary amines for static control performance are those containing unsaturation; e.g., oleyidimethylamine and/or soft tallowdimethylamine.
Preferred amine salts are those wherein the amine moiety is a C 11-C~g aikanyl or alkenyl dimethylamine or a di-C~ 1-C1g alkanyl or alkenyl methyiamine, and the acid moiety is a C11-C1g alkanyl or aikenyl monocarboxylic acid. The amine and the acid, respectively, used to form the amine salt will often be of mixed chain lengths rather than single chain lengths, since these materials are normally derived from natural fats and oils, or synthetic processes which produce a mixture of chain lengths. Also, it is often desirable to utilize mixtures of different chain lengths in order to modify the physical or performance characteristics of the cationic softener. .
These amine salts can be formed by a simple addition reaction, well known in the art, disclosed in U.S. Patent No. 4,237,155, Kardouche, issued December 2, 1980 . The amine salts preferably have a thermal softening point of from about 35°C to about 100°C:
Examples of preferred tertiary amines as starting material for the reaction between the amine and carboxylic acid to form the tertiary amine salts are: lauryldimethyiamine, myristyldimethylamine, stearyidimethylamine, tallowdimethylamine, coconutdimethylamine, dilauryimethylamine, distearylmethylamine, ditallowmethylamine, oleyldimethylamine, dioleylmethylamine, lauryldi(3-hydroxypropyl)amine, stearyldi(2-hydroxyethyl)amine, trilaurylamine, laurylethylmethyiamine, and (~2H4)~oOH
C~sH3~N
~ (OC2~)~oOH .
Preferred fatty acids are those wherein R13 is a long chain, unsubstituted alkanyl or alkenyi group of from about 8 to about 30 carbon atoms, more preferably from about 11 to about 17 carbon atoms.
Examples of specfic carboxylic adds as a starting material are:
formic acid, acetic acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, oxalic acid, adipic acid, 12-hydroxy stearic acid, benzoic acid, 4-hydroxy benzoic acid, 3-chloro benzoic acid, 4-vitro benzoic acid, 4-ethyl benzoic acid, 4-(2-chloroethyl)benzoic acid, phenylacetic acid, (4-chlorophenyl)acetic acid, (4-hydroxyphenyl)acetic acid, and phthalic acid.
Preferred carboxylic acids are stearic, oleic, lauric, myristic, palmitic, and mixtures thereof.
Specific preferred amine salts for use in the subject invention are oleyldimethylamine stearate, stearyldimethylamine stearate, stearyidimethylamine myristate, stearyldimethylamine oleate, stesryldimethylamine palmitate, distearylmethylamine palmitate, distearylmethyiamine laurate, tallowyldimethylamine stearate, and mixtures then3of. A particularly preferred mixture is oieyldimethylamine stearate and distearyimethylamine myristate, in a ratio of 1:10 to 10:1, preferably about 1:1.
Other cationic softeners useful in the subject invention compositions are disclosed and exempified in the following references U.S. Patent Nos. 3,904,533, 3,915,867, 4,127,489, 4,128,485, 4,137,180, 4,401,578, 4,454,049, 4,767,547, 4,772,403, 4,808,321, 5,051,196, 5,066,414; European Patent Application Nos. 0,293,955, 0,336,267; and PCT Patent Application No. W094/20597.
Preferred cationic softeners useful in the subject invention compositions include the following: .
1) ditallow dimethylammonium chloride (DTDMAC);
2) dehydrogenated tallow dimethylammonium chloride;
3) dehydrogenated tallow dimethylammonium methylsulfate;
4) distearyl dimethylammonium chloride;
5) dioleyl dimethylammonium chloride;
6) dipalmityl hydroxyethyl methylammonium chloride;
7) stearyl benzyl dimethylammonium chloride;
8) tallow trimethylammonium chloride;
and mixtures of any of the above materials.
Of these, compounds 1-7 are examples of compounds ~of ~Formu~ta-(III); compound 8 is a compound of Formula (IV).
Particularly preferred is N,N-di(tallowoyl-oxy-ethyl)-N,N-dimethyl-ammonium chloride, where ~ the tallow chains are at least partially unsaturated.
The level of unsaturation of the tallow chain can be measured by the Iodine Value of the corresponding fatty acids, which is preferably from 5 to 100 with two categories of compounds being distinguished, having an Iodine Value below or above 25. For compounds of Formula (III) made from tallow _g_ fatty acids having an Iodine Value of from 5 to 25, preferably 15 to 20, it is preferred that a cis/tran s isomer weight ratio be greater than about X0/70, preferably greater than about 50/50 and more preferably greater than about 70/30. For compounds of Formula (III) made from tallow fatty acids having an Iodine Value of above 25, the ratio of cis to trans isomers is less critical.
Other examples of suitable quaternary ammoniums for Formulae (III) and (IV) are obtained by, e.g., replacing "tallow" in the above compounds with, for example, coco, palm, lauryl, oleyl, ricinoleyl, stearyl, palmityl, ar the like, said fatty aryl chains being either fully saturated, or preferably at least partly unsaturated; replacing "methyl" in the above compounds with esthyl, ethoxy, propyl, propoxy, isopropyl, butyl, isobutyl or t-butyl; replacing "chloride" in the above compounds with bromide, methylsulfate, formate, sulfate, nitrate, and the like.
Certain diamido quaternary ammonium salts useful in the subject invention, largely a subset of Formula (III), have the formula:
T C NH (CH2)n N (CH2)n NH C-T1 Xa-a wherein each n is independently an integer from 1 to about 3, preferably 2;
each T1 is indepern~ently about C13-C21 alkyl, preferably about C15-C17 alkyl;
R3 and R4 are each independently about C1-C4 alkanyl or hydroxyalkanyl, preferably C1-C2; or, differing from general Formula (III), R4 is -(CyH2y0)mH, wherein rn is an integer from 1 to about 5, y is 2 or 3; and Xa- is an anion as described hereinabove.
Preferred examples of such softeners are those where n is 2, R3 is methyl, R4 is two or three ethoxy or propoxy groups, and T1C(O) is stearyl, oleyl, palmityl, palmitoleyl, tallowyl, or hydrogenated tallowyf. Particul<~rly preferred examples of such softeners are methylbis(tallowamidoethyl)(2-hydroxyethyl)ammonium methylsulfate and methylbis(hydrogenated tallowamidoethyl)(2-hydroxyethyl)ammonium methylsulfate; these materials are available from Witco Chemical Company under the trade names Varisoft~ 222 and Varisoft~ 110, respectively.
Certain ester quaternary ammonium compounds useful in the subject invention, also largely a subset of Formula (III), have the formula:
I(R5)4-m - N+ - ((CH2)n - ~' - R6)mla Xa- (VI) wherein each Y is -O-(O)C-, or -C(O)-O-;
m is 2 or 3; m is preferably 2 resulting in diester quaternary ammonium (DEQA) compounds;
each n is an integer from 1 to about 4, preferably 2;
each R5 is independently a short chain about C1-Cg, preferably about C1-C3, alkanyl or hydroxyalkanyl or a benzyl, preferably alkanyl or hydroxyalkanyl, e.g., methyl (most preferred), ethyl, propyl, hydroxyethyl, and the like;
each R6 is independently a long chain, about C1 p-C23, alkyl, preferably about C13-C19 alkyl, most preferably about C15-C17 straight chain alkyl; and the counterion Xa- is as defined above.
Examples of such softeners (wherein all long-chain alkyl substituents are straight-chain) include the following:
1 ) (CH3)2 N+(CH2CH20C(O)R6)2 CI-2) (HOCH(CH3)CH2)(CH3)N+(CH2CH20C(O)C15H31)2 Br 3) (CH3)2N+(CH2CH20C(O)C17H35)2 CI-4) (CH3)(C2H5) N+(CH2CH20C(O)C13H27)2 I-5) (C3H7)(C2H5) N+(CH2CH20C(O)C15H31)2 -S04CH3 6) (C2H5)2 N+-CH2CH20C(O)C15H31 CI-I
CH2CH20C(O)C17H35 7) (CH2CH20H)(CH3) N+(CH2CH20C(O)R6)2 CI-wherein -C(O)RE is derived from soft tallow and/or hardened tallow fatty acids. Especially preferred is diester of soft and/or hardened tallow fatty acids with di(hydroxyethyl)dimethylammonium chloride, also called di(tallowoyloxyethyl)dimethylammonium chloride. Also preferred is di(stearoyloxyethyl) dimethylammonium chloride.
Since the foregoing DEQA compounds are somewhat labile to hydrolysis, they should be handled rather carefully when used to formulate the compositions herein. For example, stable liquid compositions herein are formulated at a pH in the range of about 2 to about 5, preferably from about 2 to about 4.5, more preferably from about 2 to about 4. The pH can be adjusted by the addition of a Bronsted acid. DEQA softeners and methods for making them are disclosed in PCT Patent Application No. W094/20597, published September 15, 1994.
Quaternary imidazolinium compounds useful as cationic softeners in the subject invention compositions include those having the formula:
N\ +N \ O Xa_ NI~
a wherein Z is NR9 or O; R9 being H or R7, preferably H;
R7 is about C1-C4 alkanyl, preferably methyl or ethyl;
each R8 is independently about Cg-C25, preferably about C 11-C ~ g, more preferably about C 13-C 17 alkyl, preferably alkanyi;
Xa- is an anion as defined above.
Examples of such cationic softeners useful in the subject invention include 1-methyl-1-(tallowylamido)ethyl-2-tallowyl-4,5-dihydroimidazolinium methyisulfate and 1-methyl-1-(hydrogenated tallowylamido)ethyl-2-(hydrogenatedtallowyl)-4,5-dihydroimidazolinium methylsulfate, sold under the trade names Varisoft~ 475 and Varisoft~ 445, respectively, by Witco Chemical Company; 1-methyl-1-(palmitoyiamido)ethyl-2-octadecyl-4,5-dihydroimidazolinium chloride. Other ' related examples include 2-heptadecyl-1-methyl-1-(2-stearylamido)ethyl-imidazolinium chloride; and 2-lauryl-1-hydroxyethyl-1-oleyl-imidazolinium chloride.
The cationic softener of the subject invention can also comprise a carboxylic acid salt of a tertiary amine and/or ester amine having the formula:
O
R11 N H p-C -R13 (VIIQ
wherein R ~ 0 is a long chain aliphatic group containing from about 8 to about 30 carbon atoms; each R 11 and R ~ 2 are selected from the group consisting of an alkyl group containing from about 1 to about 30 carbon atoms, a hydroxyalkyl group of the formula: R140H wherein. R14 is an alkylene group of from about 2 to about 30 carbon atoms, and alkyl ether groups of the formula: R150(CSH2s0)r wherein R15 is alkanyl or alkenyl group having from about 1 to about 30 carbon atoms or H, s is an integer from 1 to about 5, preferably 2 or 3, and r is an integer from about 1 to about 30; wherein R 10, R 11, R 12, R 14 and R ~ 5 can be ester intemrpted groups; and wherein R 13 is selected from unsubstituted alkanyl, alkenyl, aryl, alkaryl and aralkyl groups having from about 8 to about 30 carbon atoms and substituted alkanyl, alkenyl, aryl, alkaryl, and aralkyl of from about 1 to about 30 carbon atoms wherein the subst'ttutents are selected from halogen, carboxyl, and hyd roxyl.
Preferably, R10 is alkyl containing from about 12 to about 22 carbon atoms, R 12 is alkyl of from about 1 to about 22 carbon atoms, and R ~ 0 is alkyl of from about 1 to about 22 carbon atoms. Particularly preferred tertiary amines for static control performance are those containing unsaturation; e.g., oleyidimethylamine and/or soft tallowdimethylamine.
Preferred amine salts are those wherein the amine moiety is a C 11-C~g aikanyl or alkenyl dimethylamine or a di-C~ 1-C1g alkanyl or alkenyl methyiamine, and the acid moiety is a C11-C1g alkanyl or aikenyl monocarboxylic acid. The amine and the acid, respectively, used to form the amine salt will often be of mixed chain lengths rather than single chain lengths, since these materials are normally derived from natural fats and oils, or synthetic processes which produce a mixture of chain lengths. Also, it is often desirable to utilize mixtures of different chain lengths in order to modify the physical or performance characteristics of the cationic softener. .
These amine salts can be formed by a simple addition reaction, well known in the art, disclosed in U.S. Patent No. 4,237,155, Kardouche, issued December 2, 1980 . The amine salts preferably have a thermal softening point of from about 35°C to about 100°C:
Examples of preferred tertiary amines as starting material for the reaction between the amine and carboxylic acid to form the tertiary amine salts are: lauryldimethyiamine, myristyldimethylamine, stearyidimethylamine, tallowdimethylamine, coconutdimethylamine, dilauryimethylamine, distearylmethylamine, ditallowmethylamine, oleyldimethylamine, dioleylmethylamine, lauryldi(3-hydroxypropyl)amine, stearyldi(2-hydroxyethyl)amine, trilaurylamine, laurylethylmethyiamine, and (~2H4)~oOH
C~sH3~N
~ (OC2~)~oOH .
Preferred fatty acids are those wherein R13 is a long chain, unsubstituted alkanyl or alkenyi group of from about 8 to about 30 carbon atoms, more preferably from about 11 to about 17 carbon atoms.
Examples of specfic carboxylic adds as a starting material are:
formic acid, acetic acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, oxalic acid, adipic acid, 12-hydroxy stearic acid, benzoic acid, 4-hydroxy benzoic acid, 3-chloro benzoic acid, 4-vitro benzoic acid, 4-ethyl benzoic acid, 4-(2-chloroethyl)benzoic acid, phenylacetic acid, (4-chlorophenyl)acetic acid, (4-hydroxyphenyl)acetic acid, and phthalic acid.
Preferred carboxylic acids are stearic, oleic, lauric, myristic, palmitic, and mixtures thereof.
Specific preferred amine salts for use in the subject invention are oleyldimethylamine stearate, stearyldimethylamine stearate, stearyidimethylamine myristate, stearyldimethylamine oleate, stesryldimethylamine palmitate, distearylmethylamine palmitate, distearylmethyiamine laurate, tallowyldimethylamine stearate, and mixtures then3of. A particularly preferred mixture is oieyldimethylamine stearate and distearyimethylamine myristate, in a ratio of 1:10 to 10:1, preferably about 1:1.
Other cationic softeners useful in the subject invention compositions are disclosed and exempified in the following references U.S. Patent Nos. 3,904,533, 3,915,867, 4,127,489, 4,128,485, 4,137,180, 4,401,578, 4,454,049, 4,767,547, 4,772,403, 4,808,321, 5,051,196, 5,066,414; European Patent Application Nos. 0,293,955, 0,336,267; and PCT Patent Application No. W094/20597.
Preferred cationic softeners useful in the subject invention compositions include the following: .
1) ditallow dimethylammonium chloride (DTDMAC);
2) dehydrogenated tallow dimethylammonium chloride;
3) dehydrogenated tallow dimethylammonium methylsulfate;
4) distearyl dimethylammonium chloride;
5) dioleyl dimethylammonium chloride;
6) dipalmityl hydroxyethyl methylammonium chloride;
7) stearyl benzyl dimethylammonium chloride;
8) tallow trimethylammonium chloride;
9) hydrogenated tallow trimethylammonium chloride;
10) 012-14 alkyl hydroxyethyl dimethylammonium chloride;
~11 ) 012-18 alkyl dihydroxyethyl methylammonium chloride;
12) di(stearoyloxyethyl) dimethylammonium chloride (DSOEDMAC);
13) di(tallowoyloxyethyl) dimethylammonium chloride;
14) ditallow imidazolinium methylsulfate;
15) 1-(2-tallowylamidoethyl)-2-tallowyl imidazolinium methylsulfate.
Particularly preferred cationic softeners for the subject invention compositions include ditallow dimethylammonium chloride, di(stearyloxyethyl) dimethylammonium chloride, di(tallowyloxyethyl) dimethylammonium chloride.
The single strength fabric softening compositions of the subject invention comprise from about 0.4% to about 5% cationic fabric softener, preferably from about 0.5% to about 4%, more preferably from about 0.8%
to about 3%, more preferably still from about 1 % to about 2%. The concentrates of such compositions comprise from about 0.8% to about 24%
cationic fabric softener, preferably from about 2% to about 15%, also preferably still from about 3% to about 10%.
Pertumes As used herein, the term "hydrophobic perfume" or "perfume" is used in its ordinary sense to refer to and include any essentially water insoluble (or very sparingly water soluble) fragrant substance or mixture of substances including natural (i.e., obtained by extraction of flowers, herbs, leaves, roots, barks, wood, blossoms or plants), artificial (i.e., a mixture of different nature oils or oil constituents) and synthetic (i.e., synthetically produced) odoriferous substances. Such materials are often accompanied by auxiliary materials, such as fixatives, extenders, stabilizers and solvents.
These auxiliaries are also included within the meaning of "perfume", as used herein. Typically, perfumes are complex mixtures of a plurality of organic compounds. The formulator has the luxury of choosing from a wide variety of perfume ingredients in order to arrive at a desired perfume formulation.
Examples of perfume ingredients useful in the perfumes of the subject invention compositions include, but are not limited to, hexyl cinnamic aldehyde; ~ amyl cinnamic aldehyde; amyl salicylate; hexyl salicylate;
terpineol; 3,7-dimethyl-cis-2,6-octadien-1-ol; 2,6-dimethyl-2-octanol; 2,6-dimethyl-7-octen-2-ol; 3,7-dimethyl-3-octanol; 3,7-dimethyl-trans-2,6-octadien-1-ol; 3,7-dimethyl-6-octen-1-ol; 3,7-dimethyl-1-octanol; 2-methyl-3-(para-tert-butylphenyl)-propionaldehyde; 4-(4-hydroxy-4-methylpentyl)-3-cyctohexene-1-carboxaldehyde; tricyclodecenyl propionate; tricyclodecenyl acetate; anisaldehyde; 2-methyl-2-(para-iso-propylphenyl)-propionaldehyde;
ethyl-3-methyl-3-phenyl glycidate; 4-(para-hydroxyphenyl)-butan-2-one; 1-(2,6,6-trimethyl-2-cycfohexen-1-yl)-2-buten-1-one; para-methoxyacetophenone; para-methoxy-alpha-phenylpropene; methyl-2-n-hexyl-3-oxo-cyclopentane carboxylate; undecalactone gamma.
Additional fragrance materials of synthetic or natural origin which rnay be included in the perfume, if desired, include, but are not limited to, orange oil; lemon oil; grapefruit oil; bergamot oil; clove oil; dodecalactone gamma;
methyl-2-(2-pentyl-3-oxo-cyctopentyl) acetate; beta-naphthol methylether;
methyl-beta-naphthylketone; coumarin; decylaldehyde; benzaldehyde; 4-tert-butylcyclohexyl acetate; alpha,alpha-dimethylphenethyl acetate;
methylphenylcarbinyl acetate; Schiffs base of 4-(4-hydroxy-4.-methylpentyl)-3-cyclohexene-1-carboxaldehyde and methyl ~ anthranilate; cyclic ethyleneglycol diester of irridecandioic acid; 3,7-dimethyl-2,6-octadiene-1-nitrile; ionone gamma methyl; ionone alpha; ionone beta; petitgrain; methyl cedrylone; 7-acetyl-1,2, 3,4, 5,6, 7, 8-octahydro-1,1,6, 7-tetramethyl-naphthalene; ionone methyl; methyl-1,6,10-trimethyl-2,5,9-cyclododecatriesn-1-yl ketone; 7-acetyl-1,1,3,4,4,6-hexamethyl tetralin; 4-acetyl-6-tert-butyl-' 1,1-dimethyl indane; benzophenone; 6-acetyl-1,1,2,3,3,5-hexamethyl indane; 5-acetyl-3-isopropyl-1,1,2,6-tetramethyl indane; 1-dodecanal; 7-hydroxy-3,7-dimethyl octanal; 10-undecen-1-al; iso-hexenyl cyclohexyl carboxaldehyde; formyl tricyclodecan; cyclopentadecanolide; 16-hydroxy-9-hexadecenoic acid lactone; 1,3,4,6,7,8-hexahydro-4.,6,6,7,8,8-hexamethylcyclopenta-gamma-2-benzopyrane; ambroxane; dodecahydro-3a,6,6,9a-tetramethylnaphtho-[2,1b]furan; cedrol; 5-(2,2,3- -trimethylcyclopent-3-enyl)-3-methylpentan-2-ol; 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol; caryophyllene alcohol; cedryl acetate; para-tert-butylcyclohexyl acetate; patchouli; olibanum resinoid; labdanum;
vetivert; copaiba balsam; fir balsam; and condensation products of:
hydroxycitronellal and methyl anthranilate; hydroxycitronellal and indol;
phenyl acetaldehyde and indol; 4-(4-hydroxy-4.-methyl pentyl)-3-cyclohexene-1-carboxaldehyde and methyl anthranilate.
More examples of perfume components are geraniol; geranyl acetate;
linalool; linalyl acetate; tetrahydrolinalool; citronellol; citronellyl acetate;
dihydromyrcenol; dihydromyrcenyl acetate; tetrahydromyrcenol; terpinyl acetate; nopol; nopyl acetate; 2-phenylethanol; 2-phenylethyl acetate;
benzyl alcohol; benzyl acetate; benzyl salicylate; benzyl benzoate; styrallyl acetate; dimethylbenzyicarbinol; trichloromethylphenylcarbinyl methylphenylcarbinyl acetate; isononyl acetate; vetiveryl acetate; vetiverol;
2-methyl-3-(p-tert-butylphenyl)-propanal; 2-methyl-3-(p-isopropylphenyl)-propanal; 3-(p-tert-butylphenyl)-propanal; 4-(4-methyl-3-pentenyl)-3-cyclohexenecarbaldehyde; 4-acetoxy-3-pentyltetrahydropyran; methyl dihydrojasmonate; 2-n-heptylcyclopentanone; 3-methyl-2-pentyl-cyclopentanone; n-decanal; n-dodecanal; 9-decenol-1; phenoxyethyl isobutyrate; phenylacetaldehyde dimethylacetal; phenyiacetaldehyde diethyiacetal; geranonitrile; citronellonitrile; cedryl acetal; 3-isocamphylcyclohexanol; cedryl methylether; isolongifolanone; aubepine nitrite; aubepine; heliotropine; eugenol; vanillin; diphenyl oxide;
hydroxycitronellal ionones; methyl ionones; isomethyl ionomes; ironescis-3-hexenol and esters thereof; indane musk fragrances; tetralin musk fragrances; isochroman musk fragrances; macrocyclic ketones;
macrolactone musk fragrances; ethylene brassylate.
The perfumes useful in the subject invention compositions are substantially free of halogenated materials and nitromusks.
Suitable solvents, diluents or carriers for perfumes ingredients mentioned above are for examples, ethanol, isopropanol, diethylene glycol, monoethyl ether, dipropylene glycol, diethyl phthalate, triethyl citrate, etc.
The amount of such solvents, diluents or carriers incorporated in the perfumes is preferably kept to the minimum needed to provide a homogeneous perfume solution. Perfumes useful herein and the subject invention compositions are preferably substantially free of, more preferably free of, the solvent butyl carbitol.
The single strength fabric softening compositions of the subject invention comprise from about 0.3% to about 1.2% hydrophobic perfume, preferably from about 0.4% to about 1 %, more preferably from about 0.5%
to about 0.8%. The concentrates of such compositions comprise from about 0.6% to about 10% hydrophobic perfume, preferably from about 1 % to a6~out 8%, also preferably from about 2% to about 5%.
In the subject invention compositions and concentrates, the ratia of cationic softener to perfume is from about 1:3 to about 5:1, preferably from about 1:2 to about 4:1, more preferably from about 1:1 to about 3:1, also preferably from about 1.5:1 to about 2.5:1.
Nonionic Surfactant The nonionic surfactants which are useful in the subject invention compositions comprise a polar moiety and a hydrophobic moiety. The hydrophobic moiety is preferably at least 1 alkyl group having from about 8 to about 22, more preferably from about 12 to about 18, also preferably from about 11 to about 15, carbon atoms. For liquid nonionic surfactants, the alkyl chain is preferably frorn about 10 to about 14 carbon atoms. ExampOes of polar moieties in such nonionic surfactants include alcohol, ethoxy, polyethoxy, ester, and amide.
Many suitable nonionic surtactants are compounds produced by the condensation of alkylene~ oxide groups, preferably ethylene oxide, (hydrophilic in nature) with an organic hydrophobic compound, which may be aliphatic or alkylaromatic in nature. The length of the polyoxyalkylene group which is condensed with any particular hydrophobic group can be readily adjusted to yield a water-soluble compound having the desir~ad balance between hydrophilic; and hydrophobic.
Preferred nonionic surtactants useful in the subject invention compositions are selected to achieve the desired viscosity, as well as stability, for the compositions. The nonionic surtactants useful in the subject invention compositions preferably have a HLB (hydrophilic/IipophylJic ' balance) of from about 6 to about 20, more preferably from about 8 to about 15. The preferred nonionic: surtactants have a melting point above about 20°C, more preferably from about 25°C to about 65°C.
Some of the nonionic surfactants useful in the subject invention compositions are generally disclosed in U.S. Patent Nos. 3,929,678 and 4,844,821, both incorporated herein by reference.
Classes of useful nonionic surfactants include the following:
1. The polyethylene oxide condensates of alkyl phenols. These compounds include the condensation products of alkyl phenols having an alkyl group containing from about 6 to about 12 carbon atoms in either a straight chain or branched chain configuration with ethylene oxide, the ethylene oxide being present in an amount equal to from about 5 to about 25 moles of ethylene oxide per mole of alkyl phenol.
Examples of compounds of this type include nonyl phenol condensed with about 9.5 motes of ethylene oxide per mole of phenol; dodecyl phenol condensed with about 12 moles of ethylene oxide per mole of phenol; dinonyl phenol condensed with about 15 moles of ethylene oxide per mole of phenol; and diisooctyl phenol condensed with about 15 moles of ethylene oxide per mole of phenol. Commercially available nonionic surfactants of this type include Igepal~ CO-630, marketed by the GAF Corporation; and Triton~ X-4.5, X-114, X-100, and X-102, all marketed by the Rohm & Haas Company.
2. The condensation products of aliphatic alcohols with from about 1 to about 100, preferably from about 2 to about 80, moles of ethylene oxide (ethoxylated fatty alcohols). The alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from about 8 to about 22, preferably from about 10 to about 18, more preferably from about 11 to about 15 carbon atoms.
Ethoxylated fatty alcohols preferably have from about 4 to about 60, more preferably from about 5 to about 30 moles of ethylene oxide per mole of alcohol. Examples of such ethoxylated alcohols include the condensation product of myristyl alcohol with about 10 moles of ethylene oxide per mole of alcohol; the condensation product of coconut alcohol (a mixture of fatty alcohols with alkyl chains varying in length from about 10 to about 14 carbon atoms) with about 9 moles of ethylene oxide, and the condensation product of tallow alcohol with about 25 moles of ethylene oxide. Examples of commercially available nonionic surfactants of this type include Tergitol~ 15-S-9 moles (the condensation product of C11-C15 linear alcohol with 9 moles ethylene oxide),Tergitol~ 24-L-6 NMW (the condensation product of C12-C14 primary alcohol with 6 moles ethylene oxide with a narrow molecular weight distribution), both marketed by Union Carbide Corporation;
Neodol~ 45-9 (the condensation product of C14-C15 linear alcohol with 9 moles of ethylene oxide). Neodol~ 23-6.5 (the condensation product of C12-C13 linear aUcohol with 6.5 moles of ethylene oxide), Neodol~
45-7 (the condensation product of C14-C15 linear alcohol with 7 moles of ethylene oxide), IVeodol~ 45-4 (the condensation product of C14-C15 linear alcohol with 4 moles of ethylene oxide), all marketed by Shell Chemical Company; Kyro~ EOB (the condensation product of C13-C15 alcohol wii:h 9 moles of ethylene oxide), marketed by The Procter & Gamble Company; and TAE 25 (the condensation product of tallow alcohol with 25 moles of ethylene oxide), marketed by Hoechst AG.
3. The condensation products of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol.
The hydrophobic portion of these compounds has a molecular weight of from about 1500 to about 1800 and exhibits water insolubility. The addition of polyoxyethlene moieties to this hydrophobic portion tends to increase the water solubility of the molecules as a whole, and the liquid character of the product is retained up to the point where the polyoxyethylene content is about 50% of the total weight of the condensation product, which corresponds to condensation with up to about 40 moles of ethylene oxide. Examples of compounds of this type include certain of the commercially-available Pluronic~ surfactants, marketed by Wyandotte Chemical Corporation.
4. The condensation products of ethylene oxide with the product resull:ing from the reaction of propylene oxide and ethylenediamine. The hydrophobic moiety of these products consists of the reaction product of ethylenediamine and excess propylene oxide, and generally has a molecular weight of from about 2500 to about 3000. This hydrophobic moiety is condensed with ethylene oxide to the extent that the condensation product contains from about 40% to about 80% by weight - of polyoxyethylene and has a molecular weight of from about 5,000 to about 11,000. Examples of this type of nonionic surfactant include certain of the commercially available Tetronic~ compounds, marketed by Wyandotte Chemical Corporation.
-2 ~-5. Semi-polar nonionic surfactants which include water-soluble amine oxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl groups and hydroxyalkyl groups containing from about 1 to about 3 carbon atoms; water-soluble phosphine oxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl groups and hydroxyalkyl groups containing from about 1 to about 3 carbon atoms; and water-soluble sulfonides containing one alkyl moiety of from about 10 to about 18 carbon atoms and a moiety selected from the group consisting of alkyl and hydroxyalkyi moieties of from about 1 to about 3 carbon atoms.
Preferred semi-polar nonionic surfactants are the amine oxide surfactants having the formula:
O
R20(OR21 )xN(R22)2 wherein R20 is an alkyl, hydroxyalkyl, or alkyl phenyl group or mixtures thereof containing from about 8 to about 22 carbon atoms; R21 is an alkylene or hydroxyalkylene group containing from about 2 to about 3 carbon atoms or mixtures thereof; x is from 0 to about 3; and each R22 is an alkyl or hydroxyalkyl group containing from about 1 to about 3 carbon atoms or a polyethylene oxide group containing from about 1 to about 3 ethylene oxide groups. The R22 groups can be attached to each other, e.g., through an oxygen or nitrogen atom to fom~ a ring structure.
Prefemad amihe oxide surfactants are C1p-C1g alkyl dimethyl arnine oxides and Cg-C12 alkoxy ethyl dihydroxy ethyl amine oxides.
6. Alkyipolysaccharides disclosed in U.S. Patent No. 4,565,647, Llenado, issued January 21, 1986, having a hydrophobic group containing from about 6 to about 30 carbon atoms, preferably form about 10 to about 16 carbon atoms and a polysaccharide, e.g., a polyglycoside, hydrophilic group containing (on average) from about 1.5 to about 10, preferably from about 1.5 to about 3, most preferably from about 1.6 to about 2.7 saccharide units.
Any reducing saccharide containing 5 or 6 carbon atoms can be used, e.g., glucose, galactose and galactosyi moieties can be substituted for the glucosyl moieties. (Optionally the hydrophobic group is attached at the 2-, 3-, 4-, etc. positions thus giving a glucose or galactose as opposed to a glucoside or galactoside.) The intersaccharide bands can be, e.g., between the one position of the additional saccharide units and the 2-, 3-, 4-, and/or 6-positions on the preceding saccharide units.
Optionally, and less desirably, there can be a polyalkyleneoxide chain joining the hydrophobic moiety and the polysaccharide moiety. The preferred alkyleneoxide is ethylene oxide. Typical hydrophobic groups include alkyl groups, either saturated or unsaturated, brancheol or unbranched containing from about 8 to about 18, preferably from ak>out to about 16, carbon atoms. Preferably, the alkyl group is a straight chain saturated alkyl group. The alkyl group can contain up to about 3 hydroxy groups and/or the polyalkyleneoxide chain can contain up. to about 10, preferably less than 5, alkyleneoxide moieties. Suitable alkyl polysaccharides are octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, and octadecyl, di-, tri-, tetra-, penta-, and he:xaglucosides, galactosides, lactosides, glucoses, fructosides, fructoses and/or galactoses. Suitable mixtures include coconut alkyl, di-, tri-, tetra-, and pentaglucosides and tallow alkyl tetra-penta-, and hexaglucosides.
The preferred alkylpolyclycosides have the formula:
R230(CmH2m0)t(9lYcosyl)u (X) wherein R23 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalky, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from about 10 to about 18, preferably from about 12 to about 14, carbon atoms; m is 2 or 3, preferably 2; t is from 0 to about 10, preferably 0; and a is from about 1.3 to about 10, preferably from about 1.3 to about 3, most preferably from about 1.3 to about 2.7.
The glycosyl is preferably derived from glucose. To prepare these compounds, the alcohol or alkylpolyethoxy alcohol is formed first and then reacted with glucose, or a source of glucose, to form the glucoside (attachment at the 1-position). The additional glycosyl units can then be attached between their 1-position and the preceding glycosyl units 2-, 3-, 4- and/or 6-position, preferably predominately the 2-position.
7. Fatty acid amide surfactants having the formula:
_22_ R24- C N(R25)(R26) (X4 wherein R24 is an alkyl group containing from about 7 to about 21 (preferably from about 9 to about 17) carbon atoms and R25 and R26 are each selected from hydrogen, C1-C4 alkyl, C1-C4 hydroxyalkyl, and -(C2H40)wH where w varies from about 1 to about 3. Preferred amides are Cg-C20 ammonia amides, monoethanolamides, diethanolamides, and isopropanolamides.
Polyhydroxy fatty acid amides have the above formula with R25 being methyl and R26 being glycityl derived from a reduced sugar or alkoxylated derivative thereof. Examples are N-methyl-N-1-deoxyglucityl cocoamide and N-methyl-N-1-deoxyglucityl oleamide.
Such compounds and processes for making them are disclosed in U.S.
Patent Nos. 2,965,576, 2,703,798, and 5,194,639.
8. The condensation products of fatty acids with from about 1 to about 100 moles, preferably from about 2 to about 80 moles, of ethylene oxide (ethoxylated fatty acids). The alkyl chain of the fatty acid preferably contains from about 8 to about 22 carbon atoms, more preferably from about 14 to about 18 carbon atoms. Ethoxylated fatty acids having from about 2 to about 10, especially from about 2 to about 4, moles of ethylene oxide per mole of fatty acid are preferred.
Examples of such ethoxylated fatty acids include the condensation product of fatty acids derived from tallow with about 2 moles of ethylene oxide per mole of fatty acid, commercially available as Istemul ~ 610 from Arancia Tensoactivos, S.A. de C.V., Guadalajara, Mexico, and the condensation product of stearic acid with about 75 moles of ethylene oxide per mole of fatty acid, commercially available as Pegosperse~ 4000 from Glyco Corp.
9. Glycerol esters of fatty acids. Preferred are glycerol monoesters of fatty acids. The alkyl of the fatty acids preferably contains from about 8 to about 22 carbon atoms, more preferably from about 10 to about 20 carbon atoms, more preferably still from about 14 to about 18 carbon atoms. Examples of such surfactants include glycerol monostearate (GMS) commercially available as Emulquim~ 70 from Quimic S.A. de C.V., Morelia, Mexico.
10. Sorbitan esters and ethoxylated sorbitan esters. Sorbitan esters are esterified dehydration products of sorbitol. Complex mixtures of anhydrides of sorbitol are collectively referred to herein as "sorbitan."
Preferred sorbitan esters comprise a member selected from about C10-C2g, preferably about C12-C22, acyl sorbitan monoesters and about C 1 p-C26, acyi sorbitan diesters and ethoxylates of these esters, wherein one or more of the unesterified hydroxyl groups in the esters preferably contain from 1 to about 6 oxyethylene units, and mixtures thereof. Sorbitan esters containing unsaturation (e.g., sorbitan monooleate) can be utilized. Details, including formula, of preferred sorbitan esters can be found in U.S. Patent Nos. 4,128,484 and 4, 022, 938 Derivatives of preferred sorbitan esters, especially the "lower"
ethoxylates thereof (i.e., mono-, di-, and tri-esters wherein one or more of the unesterified -OH groups contain from 1 to about 20 oxyethylene moieties) are also useful in the composition of the present invention.
An example of a preferred material is Polysorbate 61 known as Tween~ 61 from ICI America.
Commercial sorbitan monostearate is a preferred material. Mixtures of sorbitan stearate and sorbitan palmitate having stearatelpalmitate weight ratios varying between 10:1 and 1:10, and 1,5-sorbitan esters are also preferred. Both the 1,4- and 1,5-sorbitan esters are preferred.
Other preferred alkyl sorbitan esters for use in the compositions of the subject invention include sorbitan monolaurate, sorbitan monomyristate, sorbitan monopalmitate, sorbitan monobehenate, sorbitan monooieate, sortiitan dilaurate, sorbitan dimyristate, sorbitari dipalmitate, sorbitan distearate, sorbitan dibehenate, sorbitan dioleate, and mixtures thereof, and mixed tallowalkyl sorbitan mono- and di-esters. Preferred sorbitan ester mixtures can contain up to about 15%
by weight of esters of the C2p-C26, and higher, fatty acids, as well as minor amounts of Cg, and lower, fatty esters.
Sorbitan esters are readily prepared by reacting hydroxy-substituted sorbitans, particularly the 1,4- and 1,5-sorbitans, with the corresponding acid, ester, or acid chloride in a simple esterification reaction. Commercial materials prepared in this manner will comprise mixtures usually containing minor proportions of uncyclized sorbitol, fatty acids, polymers, isosorbide structures, and the like. In the subject invention compositions, it is preferred that such impurities are present at as low a level as possible.
~11 ) 012-18 alkyl dihydroxyethyl methylammonium chloride;
12) di(stearoyloxyethyl) dimethylammonium chloride (DSOEDMAC);
13) di(tallowoyloxyethyl) dimethylammonium chloride;
14) ditallow imidazolinium methylsulfate;
15) 1-(2-tallowylamidoethyl)-2-tallowyl imidazolinium methylsulfate.
Particularly preferred cationic softeners for the subject invention compositions include ditallow dimethylammonium chloride, di(stearyloxyethyl) dimethylammonium chloride, di(tallowyloxyethyl) dimethylammonium chloride.
The single strength fabric softening compositions of the subject invention comprise from about 0.4% to about 5% cationic fabric softener, preferably from about 0.5% to about 4%, more preferably from about 0.8%
to about 3%, more preferably still from about 1 % to about 2%. The concentrates of such compositions comprise from about 0.8% to about 24%
cationic fabric softener, preferably from about 2% to about 15%, also preferably still from about 3% to about 10%.
Pertumes As used herein, the term "hydrophobic perfume" or "perfume" is used in its ordinary sense to refer to and include any essentially water insoluble (or very sparingly water soluble) fragrant substance or mixture of substances including natural (i.e., obtained by extraction of flowers, herbs, leaves, roots, barks, wood, blossoms or plants), artificial (i.e., a mixture of different nature oils or oil constituents) and synthetic (i.e., synthetically produced) odoriferous substances. Such materials are often accompanied by auxiliary materials, such as fixatives, extenders, stabilizers and solvents.
These auxiliaries are also included within the meaning of "perfume", as used herein. Typically, perfumes are complex mixtures of a plurality of organic compounds. The formulator has the luxury of choosing from a wide variety of perfume ingredients in order to arrive at a desired perfume formulation.
Examples of perfume ingredients useful in the perfumes of the subject invention compositions include, but are not limited to, hexyl cinnamic aldehyde; ~ amyl cinnamic aldehyde; amyl salicylate; hexyl salicylate;
terpineol; 3,7-dimethyl-cis-2,6-octadien-1-ol; 2,6-dimethyl-2-octanol; 2,6-dimethyl-7-octen-2-ol; 3,7-dimethyl-3-octanol; 3,7-dimethyl-trans-2,6-octadien-1-ol; 3,7-dimethyl-6-octen-1-ol; 3,7-dimethyl-1-octanol; 2-methyl-3-(para-tert-butylphenyl)-propionaldehyde; 4-(4-hydroxy-4-methylpentyl)-3-cyctohexene-1-carboxaldehyde; tricyclodecenyl propionate; tricyclodecenyl acetate; anisaldehyde; 2-methyl-2-(para-iso-propylphenyl)-propionaldehyde;
ethyl-3-methyl-3-phenyl glycidate; 4-(para-hydroxyphenyl)-butan-2-one; 1-(2,6,6-trimethyl-2-cycfohexen-1-yl)-2-buten-1-one; para-methoxyacetophenone; para-methoxy-alpha-phenylpropene; methyl-2-n-hexyl-3-oxo-cyclopentane carboxylate; undecalactone gamma.
Additional fragrance materials of synthetic or natural origin which rnay be included in the perfume, if desired, include, but are not limited to, orange oil; lemon oil; grapefruit oil; bergamot oil; clove oil; dodecalactone gamma;
methyl-2-(2-pentyl-3-oxo-cyctopentyl) acetate; beta-naphthol methylether;
methyl-beta-naphthylketone; coumarin; decylaldehyde; benzaldehyde; 4-tert-butylcyclohexyl acetate; alpha,alpha-dimethylphenethyl acetate;
methylphenylcarbinyl acetate; Schiffs base of 4-(4-hydroxy-4.-methylpentyl)-3-cyclohexene-1-carboxaldehyde and methyl ~ anthranilate; cyclic ethyleneglycol diester of irridecandioic acid; 3,7-dimethyl-2,6-octadiene-1-nitrile; ionone gamma methyl; ionone alpha; ionone beta; petitgrain; methyl cedrylone; 7-acetyl-1,2, 3,4, 5,6, 7, 8-octahydro-1,1,6, 7-tetramethyl-naphthalene; ionone methyl; methyl-1,6,10-trimethyl-2,5,9-cyclododecatriesn-1-yl ketone; 7-acetyl-1,1,3,4,4,6-hexamethyl tetralin; 4-acetyl-6-tert-butyl-' 1,1-dimethyl indane; benzophenone; 6-acetyl-1,1,2,3,3,5-hexamethyl indane; 5-acetyl-3-isopropyl-1,1,2,6-tetramethyl indane; 1-dodecanal; 7-hydroxy-3,7-dimethyl octanal; 10-undecen-1-al; iso-hexenyl cyclohexyl carboxaldehyde; formyl tricyclodecan; cyclopentadecanolide; 16-hydroxy-9-hexadecenoic acid lactone; 1,3,4,6,7,8-hexahydro-4.,6,6,7,8,8-hexamethylcyclopenta-gamma-2-benzopyrane; ambroxane; dodecahydro-3a,6,6,9a-tetramethylnaphtho-[2,1b]furan; cedrol; 5-(2,2,3- -trimethylcyclopent-3-enyl)-3-methylpentan-2-ol; 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-2-buten-1-ol; caryophyllene alcohol; cedryl acetate; para-tert-butylcyclohexyl acetate; patchouli; olibanum resinoid; labdanum;
vetivert; copaiba balsam; fir balsam; and condensation products of:
hydroxycitronellal and methyl anthranilate; hydroxycitronellal and indol;
phenyl acetaldehyde and indol; 4-(4-hydroxy-4.-methyl pentyl)-3-cyclohexene-1-carboxaldehyde and methyl anthranilate.
More examples of perfume components are geraniol; geranyl acetate;
linalool; linalyl acetate; tetrahydrolinalool; citronellol; citronellyl acetate;
dihydromyrcenol; dihydromyrcenyl acetate; tetrahydromyrcenol; terpinyl acetate; nopol; nopyl acetate; 2-phenylethanol; 2-phenylethyl acetate;
benzyl alcohol; benzyl acetate; benzyl salicylate; benzyl benzoate; styrallyl acetate; dimethylbenzyicarbinol; trichloromethylphenylcarbinyl methylphenylcarbinyl acetate; isononyl acetate; vetiveryl acetate; vetiverol;
2-methyl-3-(p-tert-butylphenyl)-propanal; 2-methyl-3-(p-isopropylphenyl)-propanal; 3-(p-tert-butylphenyl)-propanal; 4-(4-methyl-3-pentenyl)-3-cyclohexenecarbaldehyde; 4-acetoxy-3-pentyltetrahydropyran; methyl dihydrojasmonate; 2-n-heptylcyclopentanone; 3-methyl-2-pentyl-cyclopentanone; n-decanal; n-dodecanal; 9-decenol-1; phenoxyethyl isobutyrate; phenylacetaldehyde dimethylacetal; phenyiacetaldehyde diethyiacetal; geranonitrile; citronellonitrile; cedryl acetal; 3-isocamphylcyclohexanol; cedryl methylether; isolongifolanone; aubepine nitrite; aubepine; heliotropine; eugenol; vanillin; diphenyl oxide;
hydroxycitronellal ionones; methyl ionones; isomethyl ionomes; ironescis-3-hexenol and esters thereof; indane musk fragrances; tetralin musk fragrances; isochroman musk fragrances; macrocyclic ketones;
macrolactone musk fragrances; ethylene brassylate.
The perfumes useful in the subject invention compositions are substantially free of halogenated materials and nitromusks.
Suitable solvents, diluents or carriers for perfumes ingredients mentioned above are for examples, ethanol, isopropanol, diethylene glycol, monoethyl ether, dipropylene glycol, diethyl phthalate, triethyl citrate, etc.
The amount of such solvents, diluents or carriers incorporated in the perfumes is preferably kept to the minimum needed to provide a homogeneous perfume solution. Perfumes useful herein and the subject invention compositions are preferably substantially free of, more preferably free of, the solvent butyl carbitol.
The single strength fabric softening compositions of the subject invention comprise from about 0.3% to about 1.2% hydrophobic perfume, preferably from about 0.4% to about 1 %, more preferably from about 0.5%
to about 0.8%. The concentrates of such compositions comprise from about 0.6% to about 10% hydrophobic perfume, preferably from about 1 % to a6~out 8%, also preferably from about 2% to about 5%.
In the subject invention compositions and concentrates, the ratia of cationic softener to perfume is from about 1:3 to about 5:1, preferably from about 1:2 to about 4:1, more preferably from about 1:1 to about 3:1, also preferably from about 1.5:1 to about 2.5:1.
Nonionic Surfactant The nonionic surfactants which are useful in the subject invention compositions comprise a polar moiety and a hydrophobic moiety. The hydrophobic moiety is preferably at least 1 alkyl group having from about 8 to about 22, more preferably from about 12 to about 18, also preferably from about 11 to about 15, carbon atoms. For liquid nonionic surfactants, the alkyl chain is preferably frorn about 10 to about 14 carbon atoms. ExampOes of polar moieties in such nonionic surfactants include alcohol, ethoxy, polyethoxy, ester, and amide.
Many suitable nonionic surtactants are compounds produced by the condensation of alkylene~ oxide groups, preferably ethylene oxide, (hydrophilic in nature) with an organic hydrophobic compound, which may be aliphatic or alkylaromatic in nature. The length of the polyoxyalkylene group which is condensed with any particular hydrophobic group can be readily adjusted to yield a water-soluble compound having the desir~ad balance between hydrophilic; and hydrophobic.
Preferred nonionic surtactants useful in the subject invention compositions are selected to achieve the desired viscosity, as well as stability, for the compositions. The nonionic surtactants useful in the subject invention compositions preferably have a HLB (hydrophilic/IipophylJic ' balance) of from about 6 to about 20, more preferably from about 8 to about 15. The preferred nonionic: surtactants have a melting point above about 20°C, more preferably from about 25°C to about 65°C.
Some of the nonionic surfactants useful in the subject invention compositions are generally disclosed in U.S. Patent Nos. 3,929,678 and 4,844,821, both incorporated herein by reference.
Classes of useful nonionic surfactants include the following:
1. The polyethylene oxide condensates of alkyl phenols. These compounds include the condensation products of alkyl phenols having an alkyl group containing from about 6 to about 12 carbon atoms in either a straight chain or branched chain configuration with ethylene oxide, the ethylene oxide being present in an amount equal to from about 5 to about 25 moles of ethylene oxide per mole of alkyl phenol.
Examples of compounds of this type include nonyl phenol condensed with about 9.5 motes of ethylene oxide per mole of phenol; dodecyl phenol condensed with about 12 moles of ethylene oxide per mole of phenol; dinonyl phenol condensed with about 15 moles of ethylene oxide per mole of phenol; and diisooctyl phenol condensed with about 15 moles of ethylene oxide per mole of phenol. Commercially available nonionic surfactants of this type include Igepal~ CO-630, marketed by the GAF Corporation; and Triton~ X-4.5, X-114, X-100, and X-102, all marketed by the Rohm & Haas Company.
2. The condensation products of aliphatic alcohols with from about 1 to about 100, preferably from about 2 to about 80, moles of ethylene oxide (ethoxylated fatty alcohols). The alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from about 8 to about 22, preferably from about 10 to about 18, more preferably from about 11 to about 15 carbon atoms.
Ethoxylated fatty alcohols preferably have from about 4 to about 60, more preferably from about 5 to about 30 moles of ethylene oxide per mole of alcohol. Examples of such ethoxylated alcohols include the condensation product of myristyl alcohol with about 10 moles of ethylene oxide per mole of alcohol; the condensation product of coconut alcohol (a mixture of fatty alcohols with alkyl chains varying in length from about 10 to about 14 carbon atoms) with about 9 moles of ethylene oxide, and the condensation product of tallow alcohol with about 25 moles of ethylene oxide. Examples of commercially available nonionic surfactants of this type include Tergitol~ 15-S-9 moles (the condensation product of C11-C15 linear alcohol with 9 moles ethylene oxide),Tergitol~ 24-L-6 NMW (the condensation product of C12-C14 primary alcohol with 6 moles ethylene oxide with a narrow molecular weight distribution), both marketed by Union Carbide Corporation;
Neodol~ 45-9 (the condensation product of C14-C15 linear alcohol with 9 moles of ethylene oxide). Neodol~ 23-6.5 (the condensation product of C12-C13 linear aUcohol with 6.5 moles of ethylene oxide), Neodol~
45-7 (the condensation product of C14-C15 linear alcohol with 7 moles of ethylene oxide), IVeodol~ 45-4 (the condensation product of C14-C15 linear alcohol with 4 moles of ethylene oxide), all marketed by Shell Chemical Company; Kyro~ EOB (the condensation product of C13-C15 alcohol wii:h 9 moles of ethylene oxide), marketed by The Procter & Gamble Company; and TAE 25 (the condensation product of tallow alcohol with 25 moles of ethylene oxide), marketed by Hoechst AG.
3. The condensation products of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol.
The hydrophobic portion of these compounds has a molecular weight of from about 1500 to about 1800 and exhibits water insolubility. The addition of polyoxyethlene moieties to this hydrophobic portion tends to increase the water solubility of the molecules as a whole, and the liquid character of the product is retained up to the point where the polyoxyethylene content is about 50% of the total weight of the condensation product, which corresponds to condensation with up to about 40 moles of ethylene oxide. Examples of compounds of this type include certain of the commercially-available Pluronic~ surfactants, marketed by Wyandotte Chemical Corporation.
4. The condensation products of ethylene oxide with the product resull:ing from the reaction of propylene oxide and ethylenediamine. The hydrophobic moiety of these products consists of the reaction product of ethylenediamine and excess propylene oxide, and generally has a molecular weight of from about 2500 to about 3000. This hydrophobic moiety is condensed with ethylene oxide to the extent that the condensation product contains from about 40% to about 80% by weight - of polyoxyethylene and has a molecular weight of from about 5,000 to about 11,000. Examples of this type of nonionic surfactant include certain of the commercially available Tetronic~ compounds, marketed by Wyandotte Chemical Corporation.
-2 ~-5. Semi-polar nonionic surfactants which include water-soluble amine oxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl groups and hydroxyalkyl groups containing from about 1 to about 3 carbon atoms; water-soluble phosphine oxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl groups and hydroxyalkyl groups containing from about 1 to about 3 carbon atoms; and water-soluble sulfonides containing one alkyl moiety of from about 10 to about 18 carbon atoms and a moiety selected from the group consisting of alkyl and hydroxyalkyi moieties of from about 1 to about 3 carbon atoms.
Preferred semi-polar nonionic surfactants are the amine oxide surfactants having the formula:
O
R20(OR21 )xN(R22)2 wherein R20 is an alkyl, hydroxyalkyl, or alkyl phenyl group or mixtures thereof containing from about 8 to about 22 carbon atoms; R21 is an alkylene or hydroxyalkylene group containing from about 2 to about 3 carbon atoms or mixtures thereof; x is from 0 to about 3; and each R22 is an alkyl or hydroxyalkyl group containing from about 1 to about 3 carbon atoms or a polyethylene oxide group containing from about 1 to about 3 ethylene oxide groups. The R22 groups can be attached to each other, e.g., through an oxygen or nitrogen atom to fom~ a ring structure.
Prefemad amihe oxide surfactants are C1p-C1g alkyl dimethyl arnine oxides and Cg-C12 alkoxy ethyl dihydroxy ethyl amine oxides.
6. Alkyipolysaccharides disclosed in U.S. Patent No. 4,565,647, Llenado, issued January 21, 1986, having a hydrophobic group containing from about 6 to about 30 carbon atoms, preferably form about 10 to about 16 carbon atoms and a polysaccharide, e.g., a polyglycoside, hydrophilic group containing (on average) from about 1.5 to about 10, preferably from about 1.5 to about 3, most preferably from about 1.6 to about 2.7 saccharide units.
Any reducing saccharide containing 5 or 6 carbon atoms can be used, e.g., glucose, galactose and galactosyi moieties can be substituted for the glucosyl moieties. (Optionally the hydrophobic group is attached at the 2-, 3-, 4-, etc. positions thus giving a glucose or galactose as opposed to a glucoside or galactoside.) The intersaccharide bands can be, e.g., between the one position of the additional saccharide units and the 2-, 3-, 4-, and/or 6-positions on the preceding saccharide units.
Optionally, and less desirably, there can be a polyalkyleneoxide chain joining the hydrophobic moiety and the polysaccharide moiety. The preferred alkyleneoxide is ethylene oxide. Typical hydrophobic groups include alkyl groups, either saturated or unsaturated, brancheol or unbranched containing from about 8 to about 18, preferably from ak>out to about 16, carbon atoms. Preferably, the alkyl group is a straight chain saturated alkyl group. The alkyl group can contain up to about 3 hydroxy groups and/or the polyalkyleneoxide chain can contain up. to about 10, preferably less than 5, alkyleneoxide moieties. Suitable alkyl polysaccharides are octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, and octadecyl, di-, tri-, tetra-, penta-, and he:xaglucosides, galactosides, lactosides, glucoses, fructosides, fructoses and/or galactoses. Suitable mixtures include coconut alkyl, di-, tri-, tetra-, and pentaglucosides and tallow alkyl tetra-penta-, and hexaglucosides.
The preferred alkylpolyclycosides have the formula:
R230(CmH2m0)t(9lYcosyl)u (X) wherein R23 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalky, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from about 10 to about 18, preferably from about 12 to about 14, carbon atoms; m is 2 or 3, preferably 2; t is from 0 to about 10, preferably 0; and a is from about 1.3 to about 10, preferably from about 1.3 to about 3, most preferably from about 1.3 to about 2.7.
The glycosyl is preferably derived from glucose. To prepare these compounds, the alcohol or alkylpolyethoxy alcohol is formed first and then reacted with glucose, or a source of glucose, to form the glucoside (attachment at the 1-position). The additional glycosyl units can then be attached between their 1-position and the preceding glycosyl units 2-, 3-, 4- and/or 6-position, preferably predominately the 2-position.
7. Fatty acid amide surfactants having the formula:
_22_ R24- C N(R25)(R26) (X4 wherein R24 is an alkyl group containing from about 7 to about 21 (preferably from about 9 to about 17) carbon atoms and R25 and R26 are each selected from hydrogen, C1-C4 alkyl, C1-C4 hydroxyalkyl, and -(C2H40)wH where w varies from about 1 to about 3. Preferred amides are Cg-C20 ammonia amides, monoethanolamides, diethanolamides, and isopropanolamides.
Polyhydroxy fatty acid amides have the above formula with R25 being methyl and R26 being glycityl derived from a reduced sugar or alkoxylated derivative thereof. Examples are N-methyl-N-1-deoxyglucityl cocoamide and N-methyl-N-1-deoxyglucityl oleamide.
Such compounds and processes for making them are disclosed in U.S.
Patent Nos. 2,965,576, 2,703,798, and 5,194,639.
8. The condensation products of fatty acids with from about 1 to about 100 moles, preferably from about 2 to about 80 moles, of ethylene oxide (ethoxylated fatty acids). The alkyl chain of the fatty acid preferably contains from about 8 to about 22 carbon atoms, more preferably from about 14 to about 18 carbon atoms. Ethoxylated fatty acids having from about 2 to about 10, especially from about 2 to about 4, moles of ethylene oxide per mole of fatty acid are preferred.
Examples of such ethoxylated fatty acids include the condensation product of fatty acids derived from tallow with about 2 moles of ethylene oxide per mole of fatty acid, commercially available as Istemul ~ 610 from Arancia Tensoactivos, S.A. de C.V., Guadalajara, Mexico, and the condensation product of stearic acid with about 75 moles of ethylene oxide per mole of fatty acid, commercially available as Pegosperse~ 4000 from Glyco Corp.
9. Glycerol esters of fatty acids. Preferred are glycerol monoesters of fatty acids. The alkyl of the fatty acids preferably contains from about 8 to about 22 carbon atoms, more preferably from about 10 to about 20 carbon atoms, more preferably still from about 14 to about 18 carbon atoms. Examples of such surfactants include glycerol monostearate (GMS) commercially available as Emulquim~ 70 from Quimic S.A. de C.V., Morelia, Mexico.
10. Sorbitan esters and ethoxylated sorbitan esters. Sorbitan esters are esterified dehydration products of sorbitol. Complex mixtures of anhydrides of sorbitol are collectively referred to herein as "sorbitan."
Preferred sorbitan esters comprise a member selected from about C10-C2g, preferably about C12-C22, acyl sorbitan monoesters and about C 1 p-C26, acyi sorbitan diesters and ethoxylates of these esters, wherein one or more of the unesterified hydroxyl groups in the esters preferably contain from 1 to about 6 oxyethylene units, and mixtures thereof. Sorbitan esters containing unsaturation (e.g., sorbitan monooleate) can be utilized. Details, including formula, of preferred sorbitan esters can be found in U.S. Patent Nos. 4,128,484 and 4, 022, 938 Derivatives of preferred sorbitan esters, especially the "lower"
ethoxylates thereof (i.e., mono-, di-, and tri-esters wherein one or more of the unesterified -OH groups contain from 1 to about 20 oxyethylene moieties) are also useful in the composition of the present invention.
An example of a preferred material is Polysorbate 61 known as Tween~ 61 from ICI America.
Commercial sorbitan monostearate is a preferred material. Mixtures of sorbitan stearate and sorbitan palmitate having stearatelpalmitate weight ratios varying between 10:1 and 1:10, and 1,5-sorbitan esters are also preferred. Both the 1,4- and 1,5-sorbitan esters are preferred.
Other preferred alkyl sorbitan esters for use in the compositions of the subject invention include sorbitan monolaurate, sorbitan monomyristate, sorbitan monopalmitate, sorbitan monobehenate, sorbitan monooieate, sortiitan dilaurate, sorbitan dimyristate, sorbitari dipalmitate, sorbitan distearate, sorbitan dibehenate, sorbitan dioleate, and mixtures thereof, and mixed tallowalkyl sorbitan mono- and di-esters. Preferred sorbitan ester mixtures can contain up to about 15%
by weight of esters of the C2p-C26, and higher, fatty acids, as well as minor amounts of Cg, and lower, fatty esters.
Sorbitan esters are readily prepared by reacting hydroxy-substituted sorbitans, particularly the 1,4- and 1,5-sorbitans, with the corresponding acid, ester, or acid chloride in a simple esterification reaction. Commercial materials prepared in this manner will comprise mixtures usually containing minor proportions of uncyclized sorbitol, fatty acids, polymers, isosorbide structures, and the like. In the subject invention compositions, it is preferred that such impurities are present at as low a level as possible.
11. Polyhydroxy fatty acid amides. These surfactants include N-aryloxy polyhydroxy fatty acid amide surfactants of the formula:
II ~ (XII) R1$-C-N-V
and N-alkyl polyhydroxy fatty acid amide surfactants of the formula:
II ~ (XII~
wherein in Formulas (XII) and (X111): R18 is about C7-C21 hydrocarbyl, preferably about Cg-C1~ hydrocarbyl, including straight-chain and branched-chain alkyl, or mixtures thereof; R16 is about C2-Cg hydrocarbyl including straight-chain, branched-chain and cyclic (including aryl), and is preferably about C2-C4 alkylene, i.e., -CH2CH2--CH2CH2CH2- and -CH2(CH2)2CH2-; R1~ is about C1-Cg straight chain, branched-chain and cyclic hydrocarbyl including aryl and oxy-hydrocarbyl, and is preferably about C1-C4 alkyl or phenyl; R1g is about C1-Cg alkyl or hydroxyalkyl, including methyl (preferred), ethyl, propyl, isopropyl, butyl, pentyl, hexyl, 2-hydroxyethyl, 3-hydroxypropyl, and the like; and V is a polyhydroxyhydrocarbyl moiety having a linear hydrocarbyl chain with at least 2 (in the case of glyceraldehyde) or at least 3 hydroxyls (in the case of other reducing sugars) directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof. V preferably will be derived from a reducing sugar in a reductive amination reaction; more preferably V
is a glycityl moiety. Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose, and xylose, as well as glyceraldehyde. As raw materials, high dextrose corn syrup, high fructose corn syrup, and high maltose corn syrup can be utilized as well as the individual sugars listed above. These corn syrups may yield a mix of sugar components for V. It should be understood that it is by no means intended to exclude other suitable raw materials. V
preferably will be selected from the group consisting of -CH2-(CHOH)z-CH20H, -CH(CH20H)-(CHOH)z-1-CH20H, -CH2_ (CHOH)2(CHOR30)(CHOH)-CH20H, where z is an integer from 1 to 5, y inclusive, and R30 is H or a cyclic mono- or poly- saccharide, and alkoxylated derivatives thereof. Most preferred are glycityls wherein z is 4, particularly -CH2-(CHOH)4-CH20H.
In compounds of the above Formula (XII), nonlimiting examples of the amine substituent group -R16-O-R17 can be, for example: 2-methoxyethyl-, 3-methoxypropyl-, 4-methoxybutyl-, 5-methoxypentyl-, 6-methoxyhexyl-, 2-ethoxyethyl-, 3-ethoxypropyl-, 2-methoxypropyl, mettioxybenzyl-, ~ -isopropoxyethyl-, 3-isopropoxypropyl-, 2-(t-butoxy)ethyl-, 3-(t-butoxy)propyl-, 2-(isobutoxy)ethyl-, 3-(isobutoxy)propyl-, 3-butoxypropyl, 2-butoxyethyl, 2-phenoxyethyl-, methoxycyclohexyl-, methoxycyclohexylmethyl-, tetrahydrofurFuryl-, tetrahydropyranoxyethyl-, 3-(2-methoxyethoxy)propyl-, methoxyethoxy)ethyl, 3-(3-methoxypropoxy)propyl-, ~_(3-methoxypropoxy)ethyl-, 3-(methoxypolyethyleneoxy)propyl-, 3-(4-methoxybutoxy)propyl-, 3-(2-methoxyisopropoxy)propyl, CH30-CH2CH(CH3)- and CI-130CH2CH(CH3)CH2-O-(CHZ)3-.
R1$-CO-N< can be, for example, cocamide, stearamide, oleamide, lauramide, myristamide, capricamide, palmitamide, tallowamide, etc.
Synthesis methods for producing polyhydroxy fatty acid amides are found in U.S. Patent 5,194,639 issued March 16, 1993 to Connor, Scheibel and Severson incorporated herein by reference.
Preferred nonionic surfactants for the subject invention compositions include ethoxylated fatty alcohols, ethoxylated fatty acids, and glycerol esters of fatty acids. The subject compositions are preferably substantially free of, more preferably free of, surfactants which are alkoxylated ethers of sterols, such as cholesterol, e.g., ethoxylated cholesterol.
Particularly preferred nonionic surfactants for the subject invention compositions include glycerol mono about C12-C20 carboxylates, ethoxylated about C12-C~0 fatty acids having from about 2 to about 10 moles of ethylene oxide per mole of mole of fatty acid, and ethoxylated about C12-C20 fatty alcohols having from about 5 to about 30 moles of - ethylene oxide per mole of fatty alcohol.
The fabric softening single strength compositions of the subject invention comprise from about 0.4% to about 5% nonionic surfactant, preferably from about 0.5% to about 4%, more preferably from about 0.8%
to about 3%, more preferably still from about 1 % to about 2%. The concentrates of such compositions comprise from about 0.8% to about 20%
nonionic surfactant, preferably from about 2% to about 15%, also preferably from about 3% to about 10%. The ratio of cationic softener to nonionic surfactant in the subject compositions and concentrates is from about 1:2 to about 4:1, preferably from about 1:1'/2 to about 3:1, also preferably from about 1:1 to about 2:1, also preferably from about 1:1'/Z to about 1'/Z to 1.
The single strength fabric softening compositions of the subject invention preferably comprise a total of the amount of cationic softener plus nonionic surfactant of from about 1 % to about 7%, more preferably from about 1.2% to about 6%, more preferably still from about 1.5% to about 4%, still more preferably from about 2% to about 3%. The concentrates of such compositions preferably comprise a total amount of cationic softener plus nonionic surfactant of from about 2% to about 30%, preferably from about 3% to about 25%, more preferably from about 4% to about 20%, also preferably from about 5% to about 15%. The ratio of cationic softener plus nonionic surfactant to perfume in the subject compositions and concentrates is preferably from about 1:1 to about 10:1, more preferably from about 2:1 to about 8:1, more preferably still from about 3:1 to about 6:1.
Viscosity Control Aaent - Water-Soluble lonizable Salts Control of viscosity of the subject invention compositions and concentrates can optionally be aided by incorporation of water-soluble ionizable inorganic salts. (Process variables and other components also effect composition viscosity.) A wide variety of ionizable salts can be used.
Examples of suitable salts are the alkali or alkaline earth halides, e.g., calcium chloride, magnesium chloride, sodium chloride, potassium bromide, and lithium chloride. Calcium chloride is preferred.
The amount of water-soluble ionizable salt incorporated in the subject invention compositions and concentrates depends upon the desired viscosity, and the amounts of cationic softener, anionic surfactant, and perfume in the composition. The proper amount is readily determined by the formulator. Typically, the amount of salt required to achieve a desired viscosity for the subject products increases with (1) lower cationic softener levels and (2) lower nonionic surfactant levels. Care must be taken to not add too much salt, since that can easily result in instability and phase separation in the product.
The subject compositions and concentrates typically comprise from 0% to about 1 % water-soluble ionizable inorganic salts, preferably from about 0.03% to about 0.5%, more preferably from about 0.05% to about 0.4%, also preferably frorn about 0.1 % to about 0.3%, also preferably 'from about 0.2% to about 0.7%, also preferably from about 0.07% to about 0.2%.
Water The subject invention compositions are aqueous-based suspensions.
Because the hydrophobic materials in the subject compositions are not truly soluble in water at the levels present in the compositions, the subject compositions are dispersions of very fine particles, most of which are preferably sub-micron in size. The subject compositions are stable dispersions, maintaining their homogeneity as such fine particle dispersions, and not separating into discrete hydrophilic and hydrophobic phases for long periods of time. Preferably the subject compositions are stable and do not separate into discrete phases for at least about 6 months when stored at 25°C, more preferably for at least about 12 months when stored at 25°C.
The single strength fabric softening compositions of the subject invention comprise from about 90% to about 98.5% water, preferably from about 92% to about 98%, more preferably from about 94% to about 97.5%, also preferably from about 95% to about 97%. The concentrates of such compositions comprise from about 60% to about 97% water, preferably from about 70% to about 96%, also preferably from about 80% to about 95%.
Outional Components The subject invention compositions can optionally comprise a number of other ingredients commonly found in fabric softening compositions.
Enzymes for treating fabrics can be included in the subject compositions, such enzymes including proteases, lipases, amylases, and cellulases. Preferred enzymes for incorporation in the subject compositions are cellulases, including both bacterial and fungal cellulases. Suitable cellulases are disclosed in U.S. Patent No. 4,435,307, Barbesgoard et al., issued March 6, 1984, incorporated herein by reference, which discloses fungal cellulase produced from Humicola insolens and Humicola strain DSM1800 or a cellulase 212-producing fungus belonging to the genus Aeromonas, and cellulase extracted from the hepatopancreas of a marine mollusk (Dolabella Aricula Solander). Suitable cellulases are also disclosed in U.K. Patent Application Nos. 2,075,028 and 2,095,275 and in German Patent 2,247,832. Cellulases disclosed in PCT Patent Application No.
WO 91/17243, such as Carezyme~ from Novo Corp., are especially preferred.
Cellulase is preferably included in the subject compositions such that the activity of the cellulase is from about 0.5 CEVU to about 100 CEVU per liter of a 1x composition, more preferably from about 4 CEVU to about 25 WO 97/16516 PCZ'/US96/17151 CEVU, more preferably still from about 7 CEVU to about 12 CEVU. (The activity of a cellulase material (CEVU) is determined from the viscosity decrease of a standard CMC solution as follows. A substrate solution is prepared which contains 35g/I CMC (Hercules 7 LFD) in 0.1 M tris buffer at pH 9Ø The cellulase sample to be analyzed is dissolved in the same y buffer. 10m1 substrate solution and 0.5m1 enzyme solution are mixed and transferred to a viscosimeter (e.g., Haake VT 181, NV sensor, 181 rpm), thermostated at 40°C. Viscosity readings are taken as soon as possible after mixing and again 30 minutes later. The activity of a cellulase solution . that reduces the viscosity of the substrate solution to one half under these conditions is defined as 1 CEVUIIiter.) The subject invention compositions preferably comprise a bactericide as a preservative. Examples of bactericides used in the compositions include glutaraldehyde, formaldehyde, 2-bromo-2-vitro-propane-1,3-diol sold by Inolex Chemicals under the tradename Bronopol~, and a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one sold by Rohm and Haas Company under the tradename Kaython~.
The subject invention compositions are preferably maintained somewhat acidic by the incorporation of a small amount of inorganic acid, such as hydrochloric acid. The pH of the subject single strength compositions is preferably from about 2 to about 5, more preferably from about 3 to about 4.
Colorants are preferably incorporated in the subject invention compositions by incorporating dye solutions in the compositions to obi:ain the desired color for the compositions.
Other optional components which may be incorporated in the subject invention compositions include thickeners, soil release agents, antifoam agents (e.g., silicone), chelants, and others, disclosed, for example, in U.S.
Patent Nos. 4,767,547 and 5,066,414.
The single strength fabric softening compositions of the subject invention comprise from 0% to about 2% of such other optional ingredients, preferably from about 0.0~% to about 0.5%. The concentrates of such compositions comprise fram 0% to about 10% of such other optional ingredients, preferably from about 0.05% to about 5%.
' The subject invention compositions preferably consist substantially of, more preferably consist of, the cationic fabric softeners, hydrophobic perfumes, nonionic surfactants, water soluble ionizable inorganic salts, WO 97/16516 PCTlUS96/17151 water, and optional components disclosed hereinabove, in the amounts disclosed hereinabove.
Process The subject invention compositions and concentrates are typically made in a mixing vessel equipped with a high-speed agitator and a water jacket for heating or cooling. For example, batches can be made in a mixing vessel having a capacity of 3 liters, the vessel being cylindricai in shape, cm in diameter and 23 cm high. The agitator used to mix the batch has a standard impeller having 6 blades having a pitch of 90°, the blades extending 4 cm from the center of the shaft. The "standard" agitator speed for such mixing vessel and agitator for the subject invention processes is a high speed, about 700-1000 rpm. Larger mixing vessels will typically have larger diameter agitator impellers run at a slower rpm, and smaller mixing vessels will typically have smaller diameter agitator impellers run at faster rpm, such that the tip speed of the impellers are about the same.
The processes of the subject invention used for making the subject invention compositions preferably involve four mixing stages.
The first mixing stage is carried out at a temperature above the melting points of the cationic softener and the nonionic surfactant. The water is added to the mixing vessel and is preheated, either before or after addition, to the desired temperature for the first mixing stage, typically from about 30°C to about 70°C, preferably from about 40°C to about 60°C. The agitator is preferably run at the standard speed throughout the first stage of mixing. Dye solution, if any, is added to the mixing vessel and blended with the water. Any hydrochloric acid is added slowly to the mixing vessel and blended. The cationic softener and nonionic surfactant are preheated and premixed at a temperature above their melting points, preferably at least about 5°C and preferably up to about 40°C above the water temperature.
The cationic softeneNnonionic surFactant premix is added slowly over a period to the mixing vessel, preferably at a substantially constant rate of addition of from about 10 ml/min to about 40 ml/min, with continuous agitation. Other minor ingredients, such as antifoam agents, preservatives, enzymes, soil release agents, etc., (but preferably not chelants), if desired in the composition, are added and blended with continuous agitation.
The temperature of the mixture in the mixing vessel is adjusted to from about 40°C to about 60°C, preferably from about 45°C
to about 55°C
with continuing agitation, preferably at the standard speed, to prepare for WO 97/16516 PCTlUS96/17151 -the second stage of mixing. The second stage of mixing involves the slow addition of perfume to the mixing vessel at this adjusted temperature, preferably with continued agitation at the standard speed. The perfume is added over a period, preferably at a substantially constant rate of addition of from about 10 ml/min to about 40 ml/min. Agitation is continued for at least about 1 min, preferably for at least about 2 min, after addition of the perfume is completed.
The mixture in the mixing vessel is homogenized in the third stage, preferably using a high-sheer (very high speed) mixer, such as a Greerco homomixer model 1-L at about 6000 to 8000 rpm. Alternatively, adequate homogenization can be achieved for some compositions by mixing with a mixer such as that used for the previous steps, for longer time periods.
Homogenizing is preferred because of the resulting compositions exhibit less hydrophobic particle size variation. The hydrophobic perfume is dispersed as small hydrophobic particles held in suspension by the surfactant activity of the cationic softener and nonionic surfactant. l'he mixture is preferably homogenized at a temperature of less than about 30°C.
Alternatively, the homogenization or additional mixing can be carried our: at temperatures above 30°C, preferably up to about 40°C, as long as the fourth stage of mixing is carried out at about the same temperature as the third stage. The mixture is preferably homogenized o.r mixed until the diameter of the hydrophobic particles is as specified hereinabove. Care must be tal~en not to over-homogenize and produce hydrophobic particles smaller than desired.
The fourth stage of rnixing for the subject processes is carried out by adding, over a period, the: water-soluble, ionizable inorganic salt to the mixture, preferably with the agitator running at about one-half the standard speed (moderate speed). The salt is preferably added as a concentrated aqueous solution (for example, about 15% salt), at a substantially constant rate or intermittently a portion at a time at a rate of from about 5ml/min to about 40 ml/min, with constant agitation. Agitation for too long after addition of the salt is completed can result in an unstable product, so such agitation is continued preferably for at most about 4 minutes, more preferably for at most about 2 minutes, after addition of the salt is completed. If desired in the subject compositions, chelants are preferably added during the fourth mixing stage.
In the above process steps, materials are added "over a period" to aqueous mixtures being agitated. This means that the material is added at a slow enough rate (constant or intermittent) to insure that the material is homogeneously blended into the aqueous mixture.
EXAMPLES
The following non-limiting examples exemplify compositions and concentrates of the subject invention.
Example 1 A single strength composition having the following formula is made by the process described below.
Example"Ir Corn ponent ~Q,~~
DTDMAC 1.14 GMS ~ 1.14 Perfume 0.6 Calcium Chloride ~ 0.1 Hydrochloric acid 0.007 Silicone 0.015 Dye 0.0045 Water balance The composition of Example 1 having a total batch weight of 1 kg is made in a mixing vessel which is generally cylindrical in shape having a diameter of 16 crn and a height of 23 cm, and having a capacity of about 4 liters.
The water, at a temperature of 60°C, is added to the mixing vessel, and the agitator, having an impeller with 6 blades of 4 cm length (measured from the center of the shaft to the blade tip) at a pitch of 90°, is run at a speed of 1070 rpm. The dye solution is added to the mixing vessel and blended with the water. The hydrochloric acid is added slowly to the mixing vessel over a period of 0.5 minutes and blended with continuous agitation.
The DTDMAC and GMS are melted, premixed to a homogeneous liquid, and heated to 75°C. This premix is added to the mixing vessel using a metering pump to provide a constant rate of addition 22 ml/min. The silicone is added to the mixing vessel and blended with continued agitation.
Agitation is continued at 1070 rpm, and the mixture is allowed to cool to 50°C. The perfume is added with a metering pump at a constant rate 22 ml/min with continued mixing at 1070 rpm, the mixing being continued for two minutes after addition of the perfume is complete.
The mixture is circulated through a homogenizer, Greerco model 1-L, run at a speed of 6500 rhm, for about 1 min, thus producing hydrophobic particles having a mean diameter of about 6 microns with 90% of the particles having a diameter of less than about 12 microns and 90% of the particles having a dieameter of greater than about 3 microns.
The calcium chloride is blended into the homogenized mixture in the mixing vessel with the agitator running at the speed of 500 rpm. 'The calcium chloride is added a portion at a time intermittently over a period of two minutes with continuous agitation. The agitation is stopped 2 minutes after all the calcium chloride is added.
The resulting final product is allowed to cool to room temperature, and is filled into individual bottles, providing the finished product.
Examples 2-4 Single strength compositions having the following formulas are made by the process described in ExamnrE? ~
Exata~pl~ 2 ' . E~cam~xle3Example 4 ' Component ' (~~~ ~o~~ , '".'~D~~.
DTDMAC 0.88 2.0 3.14 Istemul~ 610 1.21 1.0 1.15 Perfume 0.8 0.5 _ O.g Calcium Chloride p.1 0.4 0 Dye solution _0_.20 0.20 0.20 Others (antifoam, 0.25 0.25 0.25 HCI, Kaython~) Water balance ~ balance ~ balance Examples 5-7 Single strength compositions having the following formulas are made by the process described in Example 1 Examipie 5 Example 5 ExarnPl~ ?
': 'Cotllpo!'l.et'tt~al'~~ ~fi,~, ' (v/o DSOEDMAC 1.'15 1.31 1.53 GMS 1.'15 1.82 1.32 Perfume 0.3 0.8 0.5 Calcium Chloride 0.1 0.1 0.5 Dye solution 0.20 0.20 0.20 Others (antifoam, 0.25 0.25 0.25 HCI, Kaython~) Water balance balance balance Examples 8-9 Concentrates having the following formulas are made by the process described in Example 1.
Example 8 (3x~ Example 9 (5x) Component (~/a~
DTDMAC 3.42 7.0 Nonionic 3.42 (GMS) 6.0 (Istemul~ 610) Perfume 1.8 2_5 Calcium chloride 0.3 0,7 Dye solution 0.6 1.0 Others -(antifoam, HCI, 0.7 1.0 Kaython~) Water balance balance Examples 10-11 Single strength compositions having the following formulas are made by the process described below.
~omponen~ ' Example 'l Q Exam p~~e 11 . , ~~
~c~ :' DTDMAC 1.14 1.14 GMS 1.14 1.14 Perfume 0.7 0.7 HCI 0.2 0.2 Silicone 0.9 0.9 Dye solution 0.05 0.05 Cellulase -- 0.00095 (9 CEVU/liter) Others (antifoam, 0.25 0.25 HCI, Kaython~) Water Balance Balance The above composition of Example 10, having a total batch weight of - 1 kg, is made in a mixing vessel which is generally cylindrical in shape having a diameter of 16 cm and a height of 23 cm, having a capacity of 4 liters.
The water, at a temperature of 38°C, is added to the mixing vessel, and the agitator, having an impeller with 6 blades of 4 cm length (measured from the center of the shaft to the blade tip) at a pitch of 90°, is run at a speed of 750 rpm. The dye solution is added to the mixing vessel <and blended with the water. The hydrochloric acid is added slowly to the mixing vessel over a period of 0.5 minute and blended with continuous agitation.
The DTDMAC and GMS are melted, premixed to a homogeneous liquid, and heated to 63°C. The premix is added to the mixing vessel using a metering pump to provide a constant rate of addition of 22 ml/min. The silicone is added to the mixing vessel and blended with continued agitation.
Agitation is continued at 750 rpm, until the temperature of the vessel contents is 42°C. The perfume is added with a metering pump at a constant rate of 22 min with continued mixing at 750 rpm, the mixing being continued for two minutes after addition of the perfume is completed. At this stage, the remaining minor ingredients are incorporated with additional mixing until they are uniformly dispersed.
The resulting final product is allowed to cool and is filled into individual bottles, providing the finished product.
While particular embodiments of the subject invention have been described, it will be obvious to those skilled in the art that various changes and modifications to the subject invention can be made without departing from the spirit and scope of the invention. It is intended to cover, in the appended claims, all such modifications that are within the scope of this invention.
II ~ (XII) R1$-C-N-V
and N-alkyl polyhydroxy fatty acid amide surfactants of the formula:
II ~ (XII~
wherein in Formulas (XII) and (X111): R18 is about C7-C21 hydrocarbyl, preferably about Cg-C1~ hydrocarbyl, including straight-chain and branched-chain alkyl, or mixtures thereof; R16 is about C2-Cg hydrocarbyl including straight-chain, branched-chain and cyclic (including aryl), and is preferably about C2-C4 alkylene, i.e., -CH2CH2--CH2CH2CH2- and -CH2(CH2)2CH2-; R1~ is about C1-Cg straight chain, branched-chain and cyclic hydrocarbyl including aryl and oxy-hydrocarbyl, and is preferably about C1-C4 alkyl or phenyl; R1g is about C1-Cg alkyl or hydroxyalkyl, including methyl (preferred), ethyl, propyl, isopropyl, butyl, pentyl, hexyl, 2-hydroxyethyl, 3-hydroxypropyl, and the like; and V is a polyhydroxyhydrocarbyl moiety having a linear hydrocarbyl chain with at least 2 (in the case of glyceraldehyde) or at least 3 hydroxyls (in the case of other reducing sugars) directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof. V preferably will be derived from a reducing sugar in a reductive amination reaction; more preferably V
is a glycityl moiety. Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose, and xylose, as well as glyceraldehyde. As raw materials, high dextrose corn syrup, high fructose corn syrup, and high maltose corn syrup can be utilized as well as the individual sugars listed above. These corn syrups may yield a mix of sugar components for V. It should be understood that it is by no means intended to exclude other suitable raw materials. V
preferably will be selected from the group consisting of -CH2-(CHOH)z-CH20H, -CH(CH20H)-(CHOH)z-1-CH20H, -CH2_ (CHOH)2(CHOR30)(CHOH)-CH20H, where z is an integer from 1 to 5, y inclusive, and R30 is H or a cyclic mono- or poly- saccharide, and alkoxylated derivatives thereof. Most preferred are glycityls wherein z is 4, particularly -CH2-(CHOH)4-CH20H.
In compounds of the above Formula (XII), nonlimiting examples of the amine substituent group -R16-O-R17 can be, for example: 2-methoxyethyl-, 3-methoxypropyl-, 4-methoxybutyl-, 5-methoxypentyl-, 6-methoxyhexyl-, 2-ethoxyethyl-, 3-ethoxypropyl-, 2-methoxypropyl, mettioxybenzyl-, ~ -isopropoxyethyl-, 3-isopropoxypropyl-, 2-(t-butoxy)ethyl-, 3-(t-butoxy)propyl-, 2-(isobutoxy)ethyl-, 3-(isobutoxy)propyl-, 3-butoxypropyl, 2-butoxyethyl, 2-phenoxyethyl-, methoxycyclohexyl-, methoxycyclohexylmethyl-, tetrahydrofurFuryl-, tetrahydropyranoxyethyl-, 3-(2-methoxyethoxy)propyl-, methoxyethoxy)ethyl, 3-(3-methoxypropoxy)propyl-, ~_(3-methoxypropoxy)ethyl-, 3-(methoxypolyethyleneoxy)propyl-, 3-(4-methoxybutoxy)propyl-, 3-(2-methoxyisopropoxy)propyl, CH30-CH2CH(CH3)- and CI-130CH2CH(CH3)CH2-O-(CHZ)3-.
R1$-CO-N< can be, for example, cocamide, stearamide, oleamide, lauramide, myristamide, capricamide, palmitamide, tallowamide, etc.
Synthesis methods for producing polyhydroxy fatty acid amides are found in U.S. Patent 5,194,639 issued March 16, 1993 to Connor, Scheibel and Severson incorporated herein by reference.
Preferred nonionic surfactants for the subject invention compositions include ethoxylated fatty alcohols, ethoxylated fatty acids, and glycerol esters of fatty acids. The subject compositions are preferably substantially free of, more preferably free of, surfactants which are alkoxylated ethers of sterols, such as cholesterol, e.g., ethoxylated cholesterol.
Particularly preferred nonionic surfactants for the subject invention compositions include glycerol mono about C12-C20 carboxylates, ethoxylated about C12-C~0 fatty acids having from about 2 to about 10 moles of ethylene oxide per mole of mole of fatty acid, and ethoxylated about C12-C20 fatty alcohols having from about 5 to about 30 moles of - ethylene oxide per mole of fatty alcohol.
The fabric softening single strength compositions of the subject invention comprise from about 0.4% to about 5% nonionic surfactant, preferably from about 0.5% to about 4%, more preferably from about 0.8%
to about 3%, more preferably still from about 1 % to about 2%. The concentrates of such compositions comprise from about 0.8% to about 20%
nonionic surfactant, preferably from about 2% to about 15%, also preferably from about 3% to about 10%. The ratio of cationic softener to nonionic surfactant in the subject compositions and concentrates is from about 1:2 to about 4:1, preferably from about 1:1'/2 to about 3:1, also preferably from about 1:1 to about 2:1, also preferably from about 1:1'/Z to about 1'/Z to 1.
The single strength fabric softening compositions of the subject invention preferably comprise a total of the amount of cationic softener plus nonionic surfactant of from about 1 % to about 7%, more preferably from about 1.2% to about 6%, more preferably still from about 1.5% to about 4%, still more preferably from about 2% to about 3%. The concentrates of such compositions preferably comprise a total amount of cationic softener plus nonionic surfactant of from about 2% to about 30%, preferably from about 3% to about 25%, more preferably from about 4% to about 20%, also preferably from about 5% to about 15%. The ratio of cationic softener plus nonionic surfactant to perfume in the subject compositions and concentrates is preferably from about 1:1 to about 10:1, more preferably from about 2:1 to about 8:1, more preferably still from about 3:1 to about 6:1.
Viscosity Control Aaent - Water-Soluble lonizable Salts Control of viscosity of the subject invention compositions and concentrates can optionally be aided by incorporation of water-soluble ionizable inorganic salts. (Process variables and other components also effect composition viscosity.) A wide variety of ionizable salts can be used.
Examples of suitable salts are the alkali or alkaline earth halides, e.g., calcium chloride, magnesium chloride, sodium chloride, potassium bromide, and lithium chloride. Calcium chloride is preferred.
The amount of water-soluble ionizable salt incorporated in the subject invention compositions and concentrates depends upon the desired viscosity, and the amounts of cationic softener, anionic surfactant, and perfume in the composition. The proper amount is readily determined by the formulator. Typically, the amount of salt required to achieve a desired viscosity for the subject products increases with (1) lower cationic softener levels and (2) lower nonionic surfactant levels. Care must be taken to not add too much salt, since that can easily result in instability and phase separation in the product.
The subject compositions and concentrates typically comprise from 0% to about 1 % water-soluble ionizable inorganic salts, preferably from about 0.03% to about 0.5%, more preferably from about 0.05% to about 0.4%, also preferably frorn about 0.1 % to about 0.3%, also preferably 'from about 0.2% to about 0.7%, also preferably from about 0.07% to about 0.2%.
Water The subject invention compositions are aqueous-based suspensions.
Because the hydrophobic materials in the subject compositions are not truly soluble in water at the levels present in the compositions, the subject compositions are dispersions of very fine particles, most of which are preferably sub-micron in size. The subject compositions are stable dispersions, maintaining their homogeneity as such fine particle dispersions, and not separating into discrete hydrophilic and hydrophobic phases for long periods of time. Preferably the subject compositions are stable and do not separate into discrete phases for at least about 6 months when stored at 25°C, more preferably for at least about 12 months when stored at 25°C.
The single strength fabric softening compositions of the subject invention comprise from about 90% to about 98.5% water, preferably from about 92% to about 98%, more preferably from about 94% to about 97.5%, also preferably from about 95% to about 97%. The concentrates of such compositions comprise from about 60% to about 97% water, preferably from about 70% to about 96%, also preferably from about 80% to about 95%.
Outional Components The subject invention compositions can optionally comprise a number of other ingredients commonly found in fabric softening compositions.
Enzymes for treating fabrics can be included in the subject compositions, such enzymes including proteases, lipases, amylases, and cellulases. Preferred enzymes for incorporation in the subject compositions are cellulases, including both bacterial and fungal cellulases. Suitable cellulases are disclosed in U.S. Patent No. 4,435,307, Barbesgoard et al., issued March 6, 1984, incorporated herein by reference, which discloses fungal cellulase produced from Humicola insolens and Humicola strain DSM1800 or a cellulase 212-producing fungus belonging to the genus Aeromonas, and cellulase extracted from the hepatopancreas of a marine mollusk (Dolabella Aricula Solander). Suitable cellulases are also disclosed in U.K. Patent Application Nos. 2,075,028 and 2,095,275 and in German Patent 2,247,832. Cellulases disclosed in PCT Patent Application No.
WO 91/17243, such as Carezyme~ from Novo Corp., are especially preferred.
Cellulase is preferably included in the subject compositions such that the activity of the cellulase is from about 0.5 CEVU to about 100 CEVU per liter of a 1x composition, more preferably from about 4 CEVU to about 25 WO 97/16516 PCZ'/US96/17151 CEVU, more preferably still from about 7 CEVU to about 12 CEVU. (The activity of a cellulase material (CEVU) is determined from the viscosity decrease of a standard CMC solution as follows. A substrate solution is prepared which contains 35g/I CMC (Hercules 7 LFD) in 0.1 M tris buffer at pH 9Ø The cellulase sample to be analyzed is dissolved in the same y buffer. 10m1 substrate solution and 0.5m1 enzyme solution are mixed and transferred to a viscosimeter (e.g., Haake VT 181, NV sensor, 181 rpm), thermostated at 40°C. Viscosity readings are taken as soon as possible after mixing and again 30 minutes later. The activity of a cellulase solution . that reduces the viscosity of the substrate solution to one half under these conditions is defined as 1 CEVUIIiter.) The subject invention compositions preferably comprise a bactericide as a preservative. Examples of bactericides used in the compositions include glutaraldehyde, formaldehyde, 2-bromo-2-vitro-propane-1,3-diol sold by Inolex Chemicals under the tradename Bronopol~, and a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one sold by Rohm and Haas Company under the tradename Kaython~.
The subject invention compositions are preferably maintained somewhat acidic by the incorporation of a small amount of inorganic acid, such as hydrochloric acid. The pH of the subject single strength compositions is preferably from about 2 to about 5, more preferably from about 3 to about 4.
Colorants are preferably incorporated in the subject invention compositions by incorporating dye solutions in the compositions to obi:ain the desired color for the compositions.
Other optional components which may be incorporated in the subject invention compositions include thickeners, soil release agents, antifoam agents (e.g., silicone), chelants, and others, disclosed, for example, in U.S.
Patent Nos. 4,767,547 and 5,066,414.
The single strength fabric softening compositions of the subject invention comprise from 0% to about 2% of such other optional ingredients, preferably from about 0.0~% to about 0.5%. The concentrates of such compositions comprise fram 0% to about 10% of such other optional ingredients, preferably from about 0.05% to about 5%.
' The subject invention compositions preferably consist substantially of, more preferably consist of, the cationic fabric softeners, hydrophobic perfumes, nonionic surfactants, water soluble ionizable inorganic salts, WO 97/16516 PCTlUS96/17151 water, and optional components disclosed hereinabove, in the amounts disclosed hereinabove.
Process The subject invention compositions and concentrates are typically made in a mixing vessel equipped with a high-speed agitator and a water jacket for heating or cooling. For example, batches can be made in a mixing vessel having a capacity of 3 liters, the vessel being cylindricai in shape, cm in diameter and 23 cm high. The agitator used to mix the batch has a standard impeller having 6 blades having a pitch of 90°, the blades extending 4 cm from the center of the shaft. The "standard" agitator speed for such mixing vessel and agitator for the subject invention processes is a high speed, about 700-1000 rpm. Larger mixing vessels will typically have larger diameter agitator impellers run at a slower rpm, and smaller mixing vessels will typically have smaller diameter agitator impellers run at faster rpm, such that the tip speed of the impellers are about the same.
The processes of the subject invention used for making the subject invention compositions preferably involve four mixing stages.
The first mixing stage is carried out at a temperature above the melting points of the cationic softener and the nonionic surfactant. The water is added to the mixing vessel and is preheated, either before or after addition, to the desired temperature for the first mixing stage, typically from about 30°C to about 70°C, preferably from about 40°C to about 60°C. The agitator is preferably run at the standard speed throughout the first stage of mixing. Dye solution, if any, is added to the mixing vessel and blended with the water. Any hydrochloric acid is added slowly to the mixing vessel and blended. The cationic softener and nonionic surfactant are preheated and premixed at a temperature above their melting points, preferably at least about 5°C and preferably up to about 40°C above the water temperature.
The cationic softeneNnonionic surFactant premix is added slowly over a period to the mixing vessel, preferably at a substantially constant rate of addition of from about 10 ml/min to about 40 ml/min, with continuous agitation. Other minor ingredients, such as antifoam agents, preservatives, enzymes, soil release agents, etc., (but preferably not chelants), if desired in the composition, are added and blended with continuous agitation.
The temperature of the mixture in the mixing vessel is adjusted to from about 40°C to about 60°C, preferably from about 45°C
to about 55°C
with continuing agitation, preferably at the standard speed, to prepare for WO 97/16516 PCTlUS96/17151 -the second stage of mixing. The second stage of mixing involves the slow addition of perfume to the mixing vessel at this adjusted temperature, preferably with continued agitation at the standard speed. The perfume is added over a period, preferably at a substantially constant rate of addition of from about 10 ml/min to about 40 ml/min. Agitation is continued for at least about 1 min, preferably for at least about 2 min, after addition of the perfume is completed.
The mixture in the mixing vessel is homogenized in the third stage, preferably using a high-sheer (very high speed) mixer, such as a Greerco homomixer model 1-L at about 6000 to 8000 rpm. Alternatively, adequate homogenization can be achieved for some compositions by mixing with a mixer such as that used for the previous steps, for longer time periods.
Homogenizing is preferred because of the resulting compositions exhibit less hydrophobic particle size variation. The hydrophobic perfume is dispersed as small hydrophobic particles held in suspension by the surfactant activity of the cationic softener and nonionic surfactant. l'he mixture is preferably homogenized at a temperature of less than about 30°C.
Alternatively, the homogenization or additional mixing can be carried our: at temperatures above 30°C, preferably up to about 40°C, as long as the fourth stage of mixing is carried out at about the same temperature as the third stage. The mixture is preferably homogenized o.r mixed until the diameter of the hydrophobic particles is as specified hereinabove. Care must be tal~en not to over-homogenize and produce hydrophobic particles smaller than desired.
The fourth stage of rnixing for the subject processes is carried out by adding, over a period, the: water-soluble, ionizable inorganic salt to the mixture, preferably with the agitator running at about one-half the standard speed (moderate speed). The salt is preferably added as a concentrated aqueous solution (for example, about 15% salt), at a substantially constant rate or intermittently a portion at a time at a rate of from about 5ml/min to about 40 ml/min, with constant agitation. Agitation for too long after addition of the salt is completed can result in an unstable product, so such agitation is continued preferably for at most about 4 minutes, more preferably for at most about 2 minutes, after addition of the salt is completed. If desired in the subject compositions, chelants are preferably added during the fourth mixing stage.
In the above process steps, materials are added "over a period" to aqueous mixtures being agitated. This means that the material is added at a slow enough rate (constant or intermittent) to insure that the material is homogeneously blended into the aqueous mixture.
EXAMPLES
The following non-limiting examples exemplify compositions and concentrates of the subject invention.
Example 1 A single strength composition having the following formula is made by the process described below.
Example"Ir Corn ponent ~Q,~~
DTDMAC 1.14 GMS ~ 1.14 Perfume 0.6 Calcium Chloride ~ 0.1 Hydrochloric acid 0.007 Silicone 0.015 Dye 0.0045 Water balance The composition of Example 1 having a total batch weight of 1 kg is made in a mixing vessel which is generally cylindrical in shape having a diameter of 16 crn and a height of 23 cm, and having a capacity of about 4 liters.
The water, at a temperature of 60°C, is added to the mixing vessel, and the agitator, having an impeller with 6 blades of 4 cm length (measured from the center of the shaft to the blade tip) at a pitch of 90°, is run at a speed of 1070 rpm. The dye solution is added to the mixing vessel and blended with the water. The hydrochloric acid is added slowly to the mixing vessel over a period of 0.5 minutes and blended with continuous agitation.
The DTDMAC and GMS are melted, premixed to a homogeneous liquid, and heated to 75°C. This premix is added to the mixing vessel using a metering pump to provide a constant rate of addition 22 ml/min. The silicone is added to the mixing vessel and blended with continued agitation.
Agitation is continued at 1070 rpm, and the mixture is allowed to cool to 50°C. The perfume is added with a metering pump at a constant rate 22 ml/min with continued mixing at 1070 rpm, the mixing being continued for two minutes after addition of the perfume is complete.
The mixture is circulated through a homogenizer, Greerco model 1-L, run at a speed of 6500 rhm, for about 1 min, thus producing hydrophobic particles having a mean diameter of about 6 microns with 90% of the particles having a diameter of less than about 12 microns and 90% of the particles having a dieameter of greater than about 3 microns.
The calcium chloride is blended into the homogenized mixture in the mixing vessel with the agitator running at the speed of 500 rpm. 'The calcium chloride is added a portion at a time intermittently over a period of two minutes with continuous agitation. The agitation is stopped 2 minutes after all the calcium chloride is added.
The resulting final product is allowed to cool to room temperature, and is filled into individual bottles, providing the finished product.
Examples 2-4 Single strength compositions having the following formulas are made by the process described in ExamnrE? ~
Exata~pl~ 2 ' . E~cam~xle3Example 4 ' Component ' (~~~ ~o~~ , '".'~D~~.
DTDMAC 0.88 2.0 3.14 Istemul~ 610 1.21 1.0 1.15 Perfume 0.8 0.5 _ O.g Calcium Chloride p.1 0.4 0 Dye solution _0_.20 0.20 0.20 Others (antifoam, 0.25 0.25 0.25 HCI, Kaython~) Water balance ~ balance ~ balance Examples 5-7 Single strength compositions having the following formulas are made by the process described in Example 1 Examipie 5 Example 5 ExarnPl~ ?
': 'Cotllpo!'l.et'tt~al'~~ ~fi,~, ' (v/o DSOEDMAC 1.'15 1.31 1.53 GMS 1.'15 1.82 1.32 Perfume 0.3 0.8 0.5 Calcium Chloride 0.1 0.1 0.5 Dye solution 0.20 0.20 0.20 Others (antifoam, 0.25 0.25 0.25 HCI, Kaython~) Water balance balance balance Examples 8-9 Concentrates having the following formulas are made by the process described in Example 1.
Example 8 (3x~ Example 9 (5x) Component (~/a~
DTDMAC 3.42 7.0 Nonionic 3.42 (GMS) 6.0 (Istemul~ 610) Perfume 1.8 2_5 Calcium chloride 0.3 0,7 Dye solution 0.6 1.0 Others -(antifoam, HCI, 0.7 1.0 Kaython~) Water balance balance Examples 10-11 Single strength compositions having the following formulas are made by the process described below.
~omponen~ ' Example 'l Q Exam p~~e 11 . , ~~
~c~ :' DTDMAC 1.14 1.14 GMS 1.14 1.14 Perfume 0.7 0.7 HCI 0.2 0.2 Silicone 0.9 0.9 Dye solution 0.05 0.05 Cellulase -- 0.00095 (9 CEVU/liter) Others (antifoam, 0.25 0.25 HCI, Kaython~) Water Balance Balance The above composition of Example 10, having a total batch weight of - 1 kg, is made in a mixing vessel which is generally cylindrical in shape having a diameter of 16 cm and a height of 23 cm, having a capacity of 4 liters.
The water, at a temperature of 38°C, is added to the mixing vessel, and the agitator, having an impeller with 6 blades of 4 cm length (measured from the center of the shaft to the blade tip) at a pitch of 90°, is run at a speed of 750 rpm. The dye solution is added to the mixing vessel <and blended with the water. The hydrochloric acid is added slowly to the mixing vessel over a period of 0.5 minute and blended with continuous agitation.
The DTDMAC and GMS are melted, premixed to a homogeneous liquid, and heated to 63°C. The premix is added to the mixing vessel using a metering pump to provide a constant rate of addition of 22 ml/min. The silicone is added to the mixing vessel and blended with continued agitation.
Agitation is continued at 750 rpm, until the temperature of the vessel contents is 42°C. The perfume is added with a metering pump at a constant rate of 22 min with continued mixing at 750 rpm, the mixing being continued for two minutes after addition of the perfume is completed. At this stage, the remaining minor ingredients are incorporated with additional mixing until they are uniformly dispersed.
The resulting final product is allowed to cool and is filled into individual bottles, providing the finished product.
While particular embodiments of the subject invention have been described, it will be obvious to those skilled in the art that various changes and modifications to the subject invention can be made without departing from the spirit and scope of the invention. It is intended to cover, in the appended claims, all such modifications that are within the scope of this invention.
Claims (26)
1. A liquid fabric softener composition comprising:
(a) from about 0.4% to about 24% cationic fabric softener;
(b) from about 0.3% to about 10% hydrophobic perfume;
(c) from about 0.4% to about 20% nonionic surfactant;
(d) from 0% to about 3% water-soluble ionizable inorganic salt;
(e) from about 60% to about 98.5% water; and (f) from 0% to about 10% other ingredients;
the composition having a ratio of cationic softener to perfume of from about 1:3 to about 5:1, and a ratio of cationic softener to nonionic surfactant of from about 1:2 to about 4:1; the amount of cationic softener plus nonionic surfactant being from about 1% to about 30%;
and the composition being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein.
(a) from about 0.4% to about 24% cationic fabric softener;
(b) from about 0.3% to about 10% hydrophobic perfume;
(c) from about 0.4% to about 20% nonionic surfactant;
(d) from 0% to about 3% water-soluble ionizable inorganic salt;
(e) from about 60% to about 98.5% water; and (f) from 0% to about 10% other ingredients;
the composition having a ratio of cationic softener to perfume of from about 1:3 to about 5:1, and a ratio of cationic softener to nonionic surfactant of from about 1:2 to about 4:1; the amount of cationic softener plus nonionic surfactant being from about 1% to about 30%;
and the composition being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein.
2. The composition of Claim 1 wherein the viscosity of the composition is from about 50 cp to about 500 cp.
3. A single strength liquid fabric softener composition comprising:
(a) from about 0.4% to about 5% cationic fabric softener;
(b) from about 0.3% to about 1.2% hydrophobic perfume;
(c) from about 0.4% to about 5% nonionic surfactant;
(d) from 0% to about 1% water-soluble ionizable inorganic salt;
(e) from about 90% to about 98.5% water; and (f) from 0% to about 2% other ingredients;
the composition having a ratio of cationic softener to perfume of from about 1:3 to about 5:1, and a ratio of cationic softener to nonionic of from about 1:2 to about 4:1; the amount of cationic softener plus nonionic surfactant being from about 1% to about 7%; and the composition being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein.
(a) from about 0.4% to about 5% cationic fabric softener;
(b) from about 0.3% to about 1.2% hydrophobic perfume;
(c) from about 0.4% to about 5% nonionic surfactant;
(d) from 0% to about 1% water-soluble ionizable inorganic salt;
(e) from about 90% to about 98.5% water; and (f) from 0% to about 2% other ingredients;
the composition having a ratio of cationic softener to perfume of from about 1:3 to about 5:1, and a ratio of cationic softener to nonionic of from about 1:2 to about 4:1; the amount of cationic softener plus nonionic surfactant being from about 1% to about 7%; and the composition being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein.
4. The composition of Claim 3 wherein the composition comprises from about 0.8% to about 3% cationic fabric softener, from about 0.8% to about 3% nonionic surfactant, and from 0% to about 0.7% water-soluble ionizable inorganic salt which is an alkali or alkaline earth halide; the ratio of cationic softener to perfume being from about 1:2 to about 4:1; the ratio of cationic softener to nonionic surfactant being from about 1:2 to about 3:1; the viscosity of the composition being from about 50 cp to about 500 cp; and the hydrophobic particles having a mean diameter of from about 3 microns to about 15 microns with 90%
of the particles having a diameter of less than about 50 microns and 90% of the particles having a diameter of greater than about 1 micron.
of the particles having a diameter of less than about 50 microns and 90% of the particles having a diameter of greater than about 1 micron.
5. The composition of Claim 4 wherein the cationic softener has the formula:
wherein (a) each T is independently about C12-C24 alkyl; or one T is phenylalkanyl, the alkanyl being about C1-C4;
(b) T' is about C1-C4, alkanyl or hydroxyalkanyl;
(c) T" is T or T'; and (d) Xa- is any softener composition compatible anion, a being the ionic value of the anion.
wherein (a) each T is independently about C12-C24 alkyl; or one T is phenylalkanyl, the alkanyl being about C1-C4;
(b) T' is about C1-C4, alkanyl or hydroxyalkanyl;
(c) T" is T or T'; and (d) Xa- is any softener composition compatible anion, a being the ionic value of the anion.
6. The composition of Claim 5 wherein each T is independently about C14-C18 alkyl, and T' and T" are both methyl or ethyl.
7. The composition of Claim 4 wherein the cationic softener has the formula:
wherein (a) each Q is selected from the group consisting of -O-C(O)-, -C(O)-O-, -O-C(O)-O-, -NR4-C(O)-, and -C(O)-NR4-;
(b) R1 is -(CH2)n-Q-T1 or T2;
(c) R2 is -(CH2)n -Q-T1 or T2 or R3;
(d) each R3 is independently about C1-C4 alkanyl or about C1-C4 hydroxyalkanyl, or H;
(e) R4 is H or about C1-C4 alkanyl or about C1-C4 hydroxyalkanyl;
(f) each T1 is independently about C11-C23 alkyl;
(g) each T2 is independently about C12-C24, alkyl;
(h) each n is an integer from 1 to about 4; and (j) X a- is any softener composition compatible anion, a being the ionic value of the anion.
wherein (a) each Q is selected from the group consisting of -O-C(O)-, -C(O)-O-, -O-C(O)-O-, -NR4-C(O)-, and -C(O)-NR4-;
(b) R1 is -(CH2)n-Q-T1 or T2;
(c) R2 is -(CH2)n -Q-T1 or T2 or R3;
(d) each R3 is independently about C1-C4 alkanyl or about C1-C4 hydroxyalkanyl, or H;
(e) R4 is H or about C1-C4 alkanyl or about C1-C4 hydroxyalkanyl;
(f) each T1 is independently about C11-C23 alkyl;
(g) each T2 is independently about C12-C24, alkyl;
(h) each n is an integer from 1 to about 4; and (j) X a- is any softener composition compatible anion, a being the ionic value of the anion.
8. The composition of Claim 7 wherein Q is -O-C(O)-,R1 is -(CH2)n -Q-T1, R2 and R3 are both C1-C2 alkanyl or hydroxyalkanyl, R4 is H, each T1 is about C13-C17 alkyl, and n is 2.
9. The composition of Claim 4 wherein the cationic softener has the formula:
[(R5)4-m - N+ - ((CH2)n - Y - R6)m]a X a- wherein (a) each Y is -O-(O)C-, or -C(O)-O-;
(b) m is 2 or 3;
(c) each n is an integer from 1 to about 4;
(d) each R5 is independently about C1-C4, alkanyl or hydroxyalkanyl;
(e) each R6 is independently about C11-C23 alkyl; and (f) X a- is any softener composition compatible anion, a being the ionic value of the anion.
[(R5)4-m - N+ - ((CH2)n - Y - R6)m]a X a- wherein (a) each Y is -O-(O)C-, or -C(O)-O-;
(b) m is 2 or 3;
(c) each n is an integer from 1 to about 4;
(d) each R5 is independently about C1-C4, alkanyl or hydroxyalkanyl;
(e) each R6 is independently about C11-C23 alkyl; and (f) X a- is any softener composition compatible anion, a being the ionic value of the anion.
10. The composition of Claim 9 wherein m is 2, each n is 2, each R5 is C1-C2 alkanyl or hydroxyalkanyl, and each R6 is about C13-C17 alkyl.
11. The composition of Claim 4 wherein the cationic softener has the formula:
wherein (a) each n is an integer from 1 to about 3;
(b) each T1 is independently about C13-C21 alkyl;
(c) R3 and R4 are each independently about C1-C4 alkanyl or hydroxyalkanyl; and (d) X a- is any softener composition compatible anion, a being the ionic value of the anion.
wherein (a) each n is an integer from 1 to about 3;
(b) each T1 is independently about C13-C21 alkyl;
(c) R3 and R4 are each independently about C1-C4 alkanyl or hydroxyalkanyl; and (d) X a- is any softener composition compatible anion, a being the ionic value of the anion.
12. The composition of Claim 11 wherein n is 2, each T1 is about C13-C17 alkyl, and R3 and R4 are each C1-C2 alkanyl or hydroxyalkanyl.
13. The composition of Claim 4 wherein the cationic softener has the formula:
wherein (a) Z is NR9 or O, R9 being H or R7;
(b) each R7 is independently about C1-C4 alkanyl;
(c) each R8 is independently about C9-C25 alkyl; and (d) X a- is any softener composition compatible anion, a being the ionic value of the anion.
wherein (a) Z is NR9 or O, R9 being H or R7;
(b) each R7 is independently about C1-C4 alkanyl;
(c) each R8 is independently about C9-C25 alkyl; and (d) X a- is any softener composition compatible anion, a being the ionic value of the anion.
14. The composition of Claim 13 wherein Z is NH, R7 is methyl, and each R8 is independently about C11-C17 alkyl.
15. The composition of Claim 4 wherein the cationic softener is selected from the group consisting of 1) ditallow dimethylammonium chloride (DTDMAC);
2) dihydrogenated tallow dimethylammonium chloride;
3) dihydrogenated tallow dimethylammonium methylsulfate;
4) distearyl dimethylammonium chloride;
5) dioleyl dimethylammonium chloride;
6) dipalmityl hydroxyethyl methylammonium chloride;
7) stearyl benzyl dimethylammonium chloride;
8) tallow trimethylammonium chloride;
9) hydrogenated tallow trimethylammonium chloride;
10) C12-14 alkyl hydroxyethyl dimethylammonium chloride;
11) C12-18 alkyl dihydroxyethyl methylammonium chloride;
12) di(stearoyloxyethyl) dimethylammonium chloride (DSOEDMAC);
13) di(tallowoyloxyethyl) dimethyl ammoniumchloride;
14) ditallow imidazolinium methylsulfate; and 15) 1-(2-tallowylamidoethyl)-2-tallowyl imidazolinium methylsulfate.
2) dihydrogenated tallow dimethylammonium chloride;
3) dihydrogenated tallow dimethylammonium methylsulfate;
4) distearyl dimethylammonium chloride;
5) dioleyl dimethylammonium chloride;
6) dipalmityl hydroxyethyl methylammonium chloride;
7) stearyl benzyl dimethylammonium chloride;
8) tallow trimethylammonium chloride;
9) hydrogenated tallow trimethylammonium chloride;
10) C12-14 alkyl hydroxyethyl dimethylammonium chloride;
11) C12-18 alkyl dihydroxyethyl methylammonium chloride;
12) di(stearoyloxyethyl) dimethylammonium chloride (DSOEDMAC);
13) di(tallowoyloxyethyl) dimethyl ammoniumchloride;
14) ditallow imidazolinium methylsulfate; and 15) 1-(2-tallowylamidoethyl)-2-tallowyl imidazolinium methylsulfate.
16. The composition of any of Claims 6,8,10,12 and 14 wherein the nonionic surfactant is selected from the group consisting of glycerol esters of fatty acids, ethoxylated fatty acids, and ethoxylated fatty alcohols.
17. The composition of Claim 15 wherein the nonionic surfactant is selected from the groups consisting of glycerol mono about C10-C18 carboxylates, ethoxylated about C10-C18 fatty acids having from about 2-10 moles of ethylene oxide per mole of fatty acid, and ethoxylated about C10-C18 fatty alcohols having about 5-30 moles of ethylene oxide per mole of fatty alcohol.
18. The composition of Claim 17 wherein the composition comprises:
(a) from about 1% to about 2% cationic softener;
(b) from about 0.5% to about 0.8% perfume;
(c) from about 0.8% to about 2% nonionic surfactant;
(d) from 0.05% to about 0.5% water-soluble ionizable salt; and (e) from about 94% to about 97.5% water;
the composition having a ratio of cationic softener to perfume of from about 1:1 to about 3:1, and a ratio of cationic softener to nonionic surfactant of from about 1:1.5 to about 2:1; the pH of the composition being from about 2 to about 5; the hydrophobic particles having a mean diameter of from about 4 microns to about 12 microns with 90%
of the particles having a diameter of less than about 30 microns and 90% of the particles having a diameter greater than about 1 micron;
and the nonionic surfactant being selected from the group consisting of glycerol monoesters of fatty acids, ethoxylated fatty acids, and ethoxylated fatty alcohols.
(a) from about 1% to about 2% cationic softener;
(b) from about 0.5% to about 0.8% perfume;
(c) from about 0.8% to about 2% nonionic surfactant;
(d) from 0.05% to about 0.5% water-soluble ionizable salt; and (e) from about 94% to about 97.5% water;
the composition having a ratio of cationic softener to perfume of from about 1:1 to about 3:1, and a ratio of cationic softener to nonionic surfactant of from about 1:1.5 to about 2:1; the pH of the composition being from about 2 to about 5; the hydrophobic particles having a mean diameter of from about 4 microns to about 12 microns with 90%
of the particles having a diameter of less than about 30 microns and 90% of the particles having a diameter greater than about 1 micron;
and the nonionic surfactant being selected from the group consisting of glycerol monoesters of fatty acids, ethoxylated fatty acids, and ethoxylated fatty alcohols.
19. The composition of Claim 18 wherein the cationic softener is DTDMAC, and the nonionic surfactant is selected from the group consisting of glycerol mono about C10-C18 carboxylates, ethoxylated about C10-C18 fatty acids having from about 2-10 moles of ethylene oxide per mole of fatty acid, and ethoxylated about C10-C18 fatty alcohols having about 5-30 moles of ethylene oxide per mole of fatty alcohol.
20. A liquid fabric softener concentrate comprising:
(a) from about 0.8% to about 24% cationic fabric softener;
(b) from about 0.6% to about 10% hydrophobic perfume;
(c) from about 0.8% to about 20% nonionic surfactant;
(d) from 0% to about 3% water-soluble, ionizable inorganic salt;
(e) from about 60% to about 97% water; and (f) from 0% to about 10% other ingredients;
the concentrate having a ratio of cationic softener to perfume of from about 1:3 to about 5:1, and a ratio of cationic softener to nonionic surfactant of from about 1:2 to about 4:1; the amount of cationic softener plus nonionic surfactant being from about 2% to about 30%;
and the concentrate being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein.
(a) from about 0.8% to about 24% cationic fabric softener;
(b) from about 0.6% to about 10% hydrophobic perfume;
(c) from about 0.8% to about 20% nonionic surfactant;
(d) from 0% to about 3% water-soluble, ionizable inorganic salt;
(e) from about 60% to about 97% water; and (f) from 0% to about 10% other ingredients;
the concentrate having a ratio of cationic softener to perfume of from about 1:3 to about 5:1, and a ratio of cationic softener to nonionic surfactant of from about 1:2 to about 4:1; the amount of cationic softener plus nonionic surfactant being from about 2% to about 30%;
and the concentrate being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein.
21. The concentrate of Claim 20 wherein the viscosity of the concentrate is from about 50 cp to about 500 cp.
22. The concentrate of Claim 21 wherein the concentrate comprises:
(a) from about 2% to about 15% cationic softener;
(b) from about 1 % to about 8% perfume;
(c) from about 2% to about 15% nonionic surfactant;
(d) from 0% to about 2% water-soluble, inorganic salt which is an alkali or alkaline earth halide; and (e) from about 70% to about 95% water;
the concentrate having a ratio of cationic softener to perfume of from about 1:1 to about 3:1, and a ratio of cationic softener to nonionic of from about 1:1.5 to about 2:1; the amount of cationic softener plus nonionic surfactant being from about 4% to about 20%; the viscosity of the concentrate being from about 50 cp to about 500 cp; and the concentrate being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein.
(a) from about 2% to about 15% cationic softener;
(b) from about 1 % to about 8% perfume;
(c) from about 2% to about 15% nonionic surfactant;
(d) from 0% to about 2% water-soluble, inorganic salt which is an alkali or alkaline earth halide; and (e) from about 70% to about 95% water;
the concentrate having a ratio of cationic softener to perfume of from about 1:1 to about 3:1, and a ratio of cationic softener to nonionic of from about 1:1.5 to about 2:1; the amount of cationic softener plus nonionic surfactant being from about 4% to about 20%; the viscosity of the concentrate being from about 50 cp to about 500 cp; and the concentrate being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein.
23. The concentrate of Claim 22 wherein the cationic softener is selected from the group consisting of:
1) ditallow dimethylammonium chloride (DTDMAC);
2) dihydrogenated tallow dimethylammonium chloride;
3) dihydrogenated tallow dimethylammonium methylsulfate;
4) distearyl dimethylammonium chloride;
5) dioleyl dimethylammonium chloride;
6) dipalmityl hydroxyethyl methylammonium chloride;
7) stearyl benzyl dimethylammonium chloride;
8) tallow trimethylammonium chloride;
9) hydrogenated tallow trimethylammonium chloride;
10) C12-14 alkyl hydroxyethyl dimethylammonium chloride;
11) C12-18 alkyl dihydroxyethyl methylammonium chloride;
12) di(stearoyloxyethyl) dimethylammonium chloride (DSOEDMAC);
13) di(tallowoyloxyethyl) dimethyl ammoniumchloride;
14) ditallow imidazolinium methylsulfate; and 15) 1-(2-tallowylamidoethyl)-2-tallowyl imidazolinium methylsulfate.
1) ditallow dimethylammonium chloride (DTDMAC);
2) dihydrogenated tallow dimethylammonium chloride;
3) dihydrogenated tallow dimethylammonium methylsulfate;
4) distearyl dimethylammonium chloride;
5) dioleyl dimethylammonium chloride;
6) dipalmityl hydroxyethyl methylammonium chloride;
7) stearyl benzyl dimethylammonium chloride;
8) tallow trimethylammonium chloride;
9) hydrogenated tallow trimethylammonium chloride;
10) C12-14 alkyl hydroxyethyl dimethylammonium chloride;
11) C12-18 alkyl dihydroxyethyl methylammonium chloride;
12) di(stearoyloxyethyl) dimethylammonium chloride (DSOEDMAC);
13) di(tallowoyloxyethyl) dimethyl ammoniumchloride;
14) ditallow imidazolinium methylsulfate; and 15) 1-(2-tallowylamidoethyl)-2-tallowyl imidazolinium methylsulfate.
24. The concentrate of Claim 23 wherein the nonionic surfactant is selected from the group consisting of glycerol monoesters of fatty acids, ethoxylated fatty acids, and ethoxylated fatty alcohols.
25. A process for making an aqueous-based liquid fabric softener composition, the composition comprising:
(a) from about 0.4% to about 24% cationic fabric softener;
(b) from about 0.3% to about 10% hydrophobic perfume;
(c) from about 0.4% to about 20% nonionic surfactant;
(d) from 0% to about 3% water-soluble ionizable inorganic salt;
(e) from about 60% to about 98.5% water; and (f) from 0% to about 10% other ingredients;
the composition having a ratio of cationic softener to perfume of from about 1:3 to about 5:1, and a ratio of cationic softener to nonionic surfactant of from about 1:2 to about 4:1; the amount of cationic softener plus nonionic surfactant being from about 1 % to about 30%;
the viscosity of the composition being from about 50 cp to about 500 cp; and the composition being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein;
the process comprising the following steps:
(1) preheating the water to a temperature above the melting points of the cationic softener and the nonionic surfactant;
(2) optionally blending colorant and acid in the water;
(3) premixing the cationic softener and nonionic surfactant and heating them to a temperature at least about 5°C above the water temperature, adding the premix to the water over a period with continuous high-speed agitation;
(4) optionally mixing other ingredients with the mixture from Step (3);
(5) adjusting the temperature of the mixture from Step (4) to about 40°C to about 60°C, adding the perfume to such mixture over a period with high-speed agitation, continuing the agitation for at least about 1 minute after addition of the perfume is completed;
(6) optionally homogenizing the mixture from Step (5) using a high-sheer mixer;
(7) adding the water-soluble, ionizable inorganic salt, if any, to this mixture over a period with agitation.
(a) from about 0.4% to about 24% cationic fabric softener;
(b) from about 0.3% to about 10% hydrophobic perfume;
(c) from about 0.4% to about 20% nonionic surfactant;
(d) from 0% to about 3% water-soluble ionizable inorganic salt;
(e) from about 60% to about 98.5% water; and (f) from 0% to about 10% other ingredients;
the composition having a ratio of cationic softener to perfume of from about 1:3 to about 5:1, and a ratio of cationic softener to nonionic surfactant of from about 1:2 to about 4:1; the amount of cationic softener plus nonionic surfactant being from about 1 % to about 30%;
the viscosity of the composition being from about 50 cp to about 500 cp; and the composition being a liquid aqueous phase with discrete hydrophobic particles dispersed substantially uniformly therein;
the process comprising the following steps:
(1) preheating the water to a temperature above the melting points of the cationic softener and the nonionic surfactant;
(2) optionally blending colorant and acid in the water;
(3) premixing the cationic softener and nonionic surfactant and heating them to a temperature at least about 5°C above the water temperature, adding the premix to the water over a period with continuous high-speed agitation;
(4) optionally mixing other ingredients with the mixture from Step (3);
(5) adjusting the temperature of the mixture from Step (4) to about 40°C to about 60°C, adding the perfume to such mixture over a period with high-speed agitation, continuing the agitation for at least about 1 minute after addition of the perfume is completed;
(6) optionally homogenizing the mixture from Step (5) using a high-sheer mixer;
(7) adding the water-soluble, ionizable inorganic salt, if any, to this mixture over a period with agitation.
26. The process of Claim 25 wherein the composition comprises:
(a) from about 1 % to about 2% cationic softener;
(b) from about 0.5% to about 0.8% perfume;
(c) from about 0.8% to about 2% nonionic surfactant;
(d) from about 0.05 to about 0.5% water-soluble ionizable salt; and (e) from about 94% to about 97.5% water;
the composition having a ratio of cationic softener to perfume of from about 1:1 to about 3:1, and a ratio of cationic softener to nonionic surfactant of from about 1:1.5 to about 2:1; the pH of the composition being from about 2 to about 5; the hydrophobic particles having a mean diameter of from about 4 microns to about 12 microns with 90%
of the particles having a diameter less than about 30 microns and 90%
of the particles having a diameter greater than about 1 micron; the nonionic surfactant being selected from the group consisting of glycerol monoesters of fatty acids, ethoxylated fatty acids, and ethoxylated fatty alcohols; the water in Step (1) being heated to a temperature of from about 35°C to about 70°C; slowly adding the premix in Step (3) at a maximum rate of about 40 ml/min; slowly adding the perfume in Step (5) at a maximum rate of about 40 ml/min and continuing the agitation for at least about 2 minutes after addition of the perfume is completed;
homogenizing the mixture in Step (6) at a temperature of less than about 30°C; and slowly adding the salt in Step (7) over a period of at least about one minute with moderate-speed agitation, and continuing the agitation for at most about 2 minutes after addition of the salt is completed.
(a) from about 1 % to about 2% cationic softener;
(b) from about 0.5% to about 0.8% perfume;
(c) from about 0.8% to about 2% nonionic surfactant;
(d) from about 0.05 to about 0.5% water-soluble ionizable salt; and (e) from about 94% to about 97.5% water;
the composition having a ratio of cationic softener to perfume of from about 1:1 to about 3:1, and a ratio of cationic softener to nonionic surfactant of from about 1:1.5 to about 2:1; the pH of the composition being from about 2 to about 5; the hydrophobic particles having a mean diameter of from about 4 microns to about 12 microns with 90%
of the particles having a diameter less than about 30 microns and 90%
of the particles having a diameter greater than about 1 micron; the nonionic surfactant being selected from the group consisting of glycerol monoesters of fatty acids, ethoxylated fatty acids, and ethoxylated fatty alcohols; the water in Step (1) being heated to a temperature of from about 35°C to about 70°C; slowly adding the premix in Step (3) at a maximum rate of about 40 ml/min; slowly adding the perfume in Step (5) at a maximum rate of about 40 ml/min and continuing the agitation for at least about 2 minutes after addition of the perfume is completed;
homogenizing the mixture in Step (6) at a temperature of less than about 30°C; and slowly adding the salt in Step (7) over a period of at least about one minute with moderate-speed agitation, and continuing the agitation for at most about 2 minutes after addition of the salt is completed.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US722495P | 1995-11-03 | 1995-11-03 | |
US60/007,224 | 1995-11-03 | ||
US2288296P | 1996-08-20 | 1996-08-20 | |
US60/022,882 | 1996-08-20 | ||
PCT/US1996/017151 WO1997016516A1 (en) | 1995-11-03 | 1996-10-25 | Stable high perfume, low active fabric softener compositions |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2242405A1 CA2242405A1 (en) | 1997-05-09 |
CA2242405C true CA2242405C (en) | 2001-06-05 |
Family
ID=26676688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002242405A Expired - Fee Related CA2242405C (en) | 1995-11-03 | 1996-10-25 | Stable high perfume, low active fabric softener compositions |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0858499A1 (en) |
CN (1) | CN1117841C (en) |
AR (1) | AR004263A1 (en) |
AU (1) | AU7521996A (en) |
BR (1) | BR9611374A (en) |
CA (1) | CA2242405C (en) |
CZ (1) | CZ135198A3 (en) |
PL (1) | PL326868A1 (en) |
SK (1) | SK57798A3 (en) |
WO (1) | WO1997016516A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5723426A (en) † | 1996-02-29 | 1998-03-03 | Zhen; Yueqian | Liquid laundry detergent compositions containing surfactants and silicone emulsions |
DE19758272C5 (en) * | 1997-12-31 | 2004-10-07 | Kpss-Kao Professional Salon Services Gmbh | Use of a hair treatment product |
DE19758271C1 (en) * | 1997-12-31 | 1999-04-15 | Goldwell Gmbh | Aqueous hair color and toner based on direct cationic dye |
GB0001778D0 (en) * | 2000-01-27 | 2000-03-22 | A I N Manufacturing Limited | Laundry detergent composition |
DE60129427T3 (en) * | 2000-05-11 | 2014-07-24 | The Procter & Gamble Company | HIGHLY CONCENTRATED LAUNDRY SPRAY COMPOSITIONS AND COMPOUNDS CONTAINING THEM |
US20030104969A1 (en) | 2000-05-11 | 2003-06-05 | Caswell Debra Sue | Laundry system having unitized dosing |
GB0012958D0 (en) * | 2000-05-26 | 2000-07-19 | Unilever Plc | Fabric conditioning composition |
GB0021766D0 (en) | 2000-09-05 | 2000-10-18 | Unilever Plc | Fabric conditioning compositions |
GB0021765D0 (en) | 2000-09-05 | 2000-10-18 | Unilever Plc | A method of preparing fabric conditioning compositions |
GB0025442D0 (en) * | 2000-10-17 | 2000-11-29 | Unilever Plc | Fabric conditioning compositions |
CN104629956A (en) * | 2013-11-12 | 2015-05-20 | 青岛锦涟鑫商贸有限公司 | Woolen clothes cleaning compound |
KR102254335B1 (en) * | 2014-06-18 | 2021-05-24 | 로디아 오퍼레이션스 | Method of use of composition comprising a quaternary ammonium compound, a cationic polysaccharide and a nonionic polysaccharide |
CN108951279A (en) * | 2018-07-11 | 2018-12-07 | 翟琳 | A kind of preparation method of papermaking softening agent |
CN111471543A (en) * | 2020-05-27 | 2020-07-31 | 福建恒安集团有限公司 | Close-fitting clothes washing gel bead and preparation method thereof |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3790484A (en) * | 1972-01-18 | 1974-02-05 | Blalock E | Fragrance-imparting laundering composition |
GB9403242D0 (en) * | 1994-02-21 | 1994-04-13 | Unilever Plc | Fabric softening composition |
-
1996
- 1996-10-25 AU AU75219/96A patent/AU7521996A/en not_active Abandoned
- 1996-10-25 SK SK577-98A patent/SK57798A3/en unknown
- 1996-10-25 PL PL96326868A patent/PL326868A1/en unknown
- 1996-10-25 BR BR9611374A patent/BR9611374A/en not_active IP Right Cessation
- 1996-10-25 CA CA002242405A patent/CA2242405C/en not_active Expired - Fee Related
- 1996-10-25 CN CN96199411A patent/CN1117841C/en not_active Expired - Fee Related
- 1996-10-25 CZ CZ981351A patent/CZ135198A3/en unknown
- 1996-10-25 EP EP96937750A patent/EP0858499A1/en not_active Ceased
- 1996-10-25 WO PCT/US1996/017151 patent/WO1997016516A1/en not_active Application Discontinuation
- 1996-11-01 AR ARP960105008A patent/AR004263A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
AR004263A1 (en) | 1998-11-04 |
WO1997016516A1 (en) | 1997-05-09 |
PL326868A1 (en) | 1998-10-26 |
CN1206433A (en) | 1999-01-27 |
AU7521996A (en) | 1997-05-22 |
BR9611374A (en) | 1999-02-23 |
CN1117841C (en) | 2003-08-13 |
SK57798A3 (en) | 1998-12-02 |
EP0858499A1 (en) | 1998-08-19 |
CZ135198A3 (en) | 1998-11-11 |
CA2242405A1 (en) | 1997-05-09 |
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