DE968516C - Dentifrices - Google Patents

Description

ISSUED FEBRUARY 27, 1958

C 6922 IVa / 30 h

Dentifrices

The invention relates to a chlorophyll-containing dentifrice.

Chlorophyll, the green plant pigment, is known to consist of two components, the blue-green Chlorophyll a and the yellow-green chlorophyll b, which has a chemically analogous structure, both of which are water-insoluble, magnesium-containing phytyl methyl esters of a prophyric derivative are that have a built-in dihydroporphine ring has isocyclic ring. For the purposes of the invention, chlorophyll includes both the mixture as well as the individual components and their derivatives.

The water-soluble chlorophyll compounds largely or eliminate the unpleasant halitosis fully.

They are conveniently placed in the oral cavity by rinsing or brushing the teeth with one of these Dental care products containing compounds introduced. But it turned out that the effective chlorophyll compounds from the dental care products

709 891/17

especially if they contain insoluble calcium compounds as a polishing agent, neither in aqueous solution nor in aqueous saliva are released, so that they are not effective when brushing teeth. It has now been found that these disadvantages are eliminated if the dentifrice contains a water-soluble chlorophyll compound, a polishing agent, e.g. B. a water-insoluble or sparingly soluble calcium compound and 0.5 to ΐσ ° / ₀ , calculated on the weight of the dentifrice, a water-soluble salt of ortho-, pyro- or tripolyphosphoric _{acid (Na 5} P ₃ O ₁₀ ), citric acid, silica and gluconic acid containing ethylenediamine tetraacetic acid, which has a _pH value of about 5 to 11, preferably from about 7.5 to 9, in 20% strength aqueous slurry measured ^he gives the mixture.

The dentifrice expediently has an alkali silicate content. According to a particular embodiment, the dental care agent according to the invention contains Sodium pyrophosphate.

For the production of dental care products according to the invention, such as mouthwashes, toothpastes and tooth powders, The following alkali salts of inorganic acids can be used: mono-, di- and trisodium phosphate, Disodium pyrophosphate, tetrasodium pyrophosphate, sodium tripolyphosphate, mono-, di- and tripotassium phosphate, Dipotassium pyrophosphate, tetrapotassium pyrophosphate, potassium tripolyphosphate, sodium and Potassium silicate.

In terms of salts of organic acids, for example, sodium citrate, potassium citrate, sodium gluconate, Potassium gluconate, the alkali salt of ethylenediamino-tetra-acetic acid of the formula

NaOOC-CH ₂ , NaOOC-CH ₂ '

- CH ₂ - CH _a -

₂ - CH _a CH ₂ -COONa

CH ₂ - COONa

The alkali metal salts körinen in amounts up to about 10 ° / ₀ of the weight of the final mixtures are added.

The calcium compounds that are insoluble or sparingly soluble in water, used as polishing or abrasive agents can be added, calcium carbonate, calcium sulfate, anhydrous dicalcium phosphate, Dicalcium phosphate dihydrate, commercially available tricalcium phosphate or the like. You can too Add aluminum hydroxide, magnesium carbonate or the like in addition to the calcium compound. The water-insoluble or sparingly soluble polishing agents make up the largest part of toothpastes and tooth powders of the mixture, up to 95 percent by weight.

Sodium-copper-chlorophyllin, sodium-magnesium-chlorophyllin, sodium-nickel-chlorophyllin, sodium-iron-chlorophyllin, sodium-potassium-copper-chlorophyl-Hn, kahum-copper-chlorophyllin, potassium-magnesium chlorophyllin, potassium-nickel-chlorophyllin, can be used as water-soluble chlorophyll compounds. Potassium iron chlorophyllin etc. ₄ can be used. The content of these water-soluble chlorophytes in the finished dentifrice is up to about ι percent by weight.

To demonstrate that the mixtures according to the invention are effective free chlorophyll compounds is set, comparative tests with dental care products were carried out, which different water-insoluble or sparingly soluble calcium compounds as a polishing agent, 0.1% water-soluble potassium copper chlorophyllin and various of the water-soluble alkali salts of the present invention. the end the following table shows the percentage of the water-soluble chlorophyll compound in one Mixture of about 1 part by weight of dentifrice and 4 parts of water is released:

Freed chlorophyll compound in percent with a content of the dentifrice

o% - 2% 5%

Dicalcium phosphate dihydrate and tetrasodium pyrophosphate ...

Dicalcium phosphate dihydrate and sodium tripolyphosphate

Dicalcium phosphate dihydrate and disodium pyrophosphate

Calcium carbonate and tetrasodium pyrophosphate

Calcium carbonate and sodium tripolyphosphate

Calcium carbonate and disodium pyrophosphate

Tricalcium phosphate and tetrasodium pyrophosphate

Tricalcium phosphate. and sodium tripolyphosphate .....

Tricalcium phosphate and disodium pyrophosphate

i, 5 98 i, 5 91 i, 5 68 2.0 94 2.0 87. 2.0 65 0.0 63 0.0 79 0.0 19th

90 91

63

The dentifrices according to the invention can have the usual additives, for. As cleaning agents such as soaps, or synthetic detergent, for example up to about 10 ° / ₀ soap or up to 8 ° / ₀ active washing synthetic fabrics. Fragrances or flavorings, such as wintergreen oil, peppermint oil, spearmint oil, eucalyptus oil, clove oil, menthol, anise, thyme, soluble saccharin and the like can also be added in the usual way.

Some dentifrices according to the invention are listed in the following examples. The data on the hydrogen ion concentration refer to a 20 ° / _O by weight aqueous slurry of the agents listed.

Example ι

A toothpaste is made from the following ingredients:

ίο dicalcium phosphate dihydrate 50.0%

Sodium-copper-chlorophylhn 0.1%

Tetrasodium pyrophosphate 2.0 ° / o

Carboxymethyl cellulose 1.5%

_1S water rest

This agent has a _pH value of about 7.5

Example 2

A dentifrice is produced in paste form with the following ingredients:

Dicalcium phosphate dihydrate 37.5%

Calcium carbonate 12.5%

^a 5 potassium-copper-chlorophylhn o »i ° / o

Disodium pyrophosphate 3.0% / ₀

Sodium alginate l ² % "

Water rest

The paste has a _pH value of about 8

Example 3

A toothpaste is made from the following ingredients:

Commercial tricalcium phosphate 40.0%

Sodium copper chlorophyllin 0.05 ° / ₀

Sodium citrate 5.0% / ₀

Sodium lauryl sulfoacetate 4.0 ° / ₀

Irish moss 0,3 ° / o

Glycerine 35.o ° / ₀

Peppermint oil 1.0%

Water rest

This agent has a _pH value of about 8.5

Example 4

A toothpaste of the following composition is made:

Calcium carbonate 50.0% / ₀

Sodium copper chlorophyllin 0.3%

Tetrasodium pyrophosphate 0.25%

Sodium Lauryl Sulphate 2.5%

Spearmint Oil 1.0%

Tragacanth 1.0%

Glycerin: 20.0%

Saccharin 0.1% / ₀

Water rest

This paste has a _pH value of about 8.8

Example 5

A tooth powder of the following composition is prepared ^6s:

Calcium carbonate 84.8%

Sodium-copper-chlorophyllin 1.0%

Saccharine 0.2% / ₀ 7 "

Sodium silicate 3.0% / ₀

Palm oil soap powder '' 8.0%

Wintergreen Oil 3.0% / ₀

The agent has a _pH value of about 10.8

Example 6

A dental care product in powder form is made from the following ingredients:

Dicalcium phosphate dihydrate 91.8 ° / ₀

Sodium copper chlorophylline 0.2 ° / ₀

Sodium lauryl sulfate 3.0 ° / ₀

Sodium tripolyphosphate 3 »ο%

Peppermint oil 2.0% / ₀

This agent has a _pH value of about 8.5

As can be seen from the examples, auxiliaries such as binders or thickeners can also be added in smaller amounts. Sodium alginate is used as the binder, it is believed advantageous amounts of up to about 3 ⁰ / _0th Tragacanth is added in amounts of about 0.1 to 3%, calculated on the finished product, while carboxymethyl cellulose is added in larger amounts, e.g. Up to about 4% or more can be used. Irish moss, pectin and the like can also be added within wide limits.

Next may be added to titanium dioxide or other dyestuffs in amounts of up to about 2 ° / _0th

The invention includes all oral and dental care products in any form, e.g. B. as an aqueous solution, as a cream, paste or as a dry powder.

If the compositions according to the invention are produced with an aqueous medium, all of them become liquid Ingredients such as water, ethanol, etc., placed in a vessel and stirred thoroughly, then the water-soluble Alkali metal salt was added and then the polishing agent, the water-soluble chlorophyll compound and other auxiliaries added. Active synthetic detergents are expedient added to thoroughly mixed liquid ingredients prior to adding the water-soluble alkali metal salt.

Claims (5)

Patent claims: i. Dentifrice made from a water-soluble chlorophyll compound, a polishing agent, e.g. B. a water-insoluble or sparingly soluble calcium compound and 0.5 to 10 ° / ₀ , calculated on the weight of the dentifrice, a water-soluble salt of ortho-, pyro- or tripolyphosphoric acid, citric acid, silica, Gluconic acid and ethylene diamine tetraacetic acid, which measured the mixture has a _pH value of about 5 to 11, preferably hydrochloric from about 7.5 to 9, at 20 ° / _o aqueous slurry imparts. 2. Dentifrice according to claim 1, characterized by a content of alkali silicate. 3. Dental care product according to claim 1 or 2, characterized by a content of sodium pyrophosphate. References considered: British Patent Specification No. 601,801. 5 509598/143 11.55 (709 891/17 2.58) • aiii