BE522407A - - Google Patents
Info
- Publication number
- BE522407A BE522407A BE522407DA BE522407A BE 522407 A BE522407 A BE 522407A BE 522407D A BE522407D A BE 522407DA BE 522407 A BE522407 A BE 522407A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- cobalt
- fatty acids
- cooking
- grams
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/58—Epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/58—Epoxy resins
- C08G18/581—Reaction products of epoxy resins with less than equivalent amounts of compounds containing active hydrogen added before or during the reaction with the isocyanate component
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
- C08G59/4028—Isocyanates; Thioisocyanates
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
PROCEDE DE FABRICATION DE LAQUES, EMAUX ET PEINTURES ET PRODUITS OBTENUS PAR
SON APPLICATION.
Le brevet-principal a pour objet la fabrication de laques, émaux et peintures par l'emploi de liants formés de résines-époxy en combinaison avec des di- ou poly-isocyanates, ainsi que les laques, peintures et émaux obtenus de la sorte et les revêtements, réalisés par leur emploi.
Il est connu qu'on peut, par cuisson, estérifier les résines époxy par des acides gras non saturés pour obtenir des esters ressemblant beaucoup à une résine glycéro-phtalique ou un alkyde, dont ils présentent également les caractéristiques. Comme les alkydes, ces esters peuvent servir de liants pour peintures et émaux, qui par addition de siccatifs, sèchent soit à l'air soit au four, suivant le cas et le genre d'acides gras utilisés pour l'estérification
Dans la préparation des dits esters de résines époxy, on ne peut toutefois appliquer qu'une partie des acides gras nécessaires à l'estérification de tous les groupes OH disponibles. L'expérience montre que si la proportion d'acides gras dépasse environ 40 à 50% de ces groupes OH disponibles dans la molécule de résine-époxy, des difficultés apparaissent à la cuisson tandis qu'on obtient des esters présentant la meilleure résistance aux intempéries, si on s'en tient à l'estérification partielle de la mesure susdite.
L'invention a constaté qu'une amélioration considérable des résultats obtenus par l'emploi des esters épikote est réalisée si on applique
<EMI ID=1.1>
si de la manière décrite dans celui-ci on les combine avec les di- ou polyisocyanates. Dans le cas présent on emploiera des quantités moindres de diou poly-isocyanates, pour la raison qu'ils ne doivent plus réagir qu'avec une partie des résines époxy mises en oeuvre au départ, les quantités utiles pouvant être facilement calculées en se basant sur le degré d'estérification préalable.
peintures et émaux à base d'esters épikote on obtient comparativement aux
mêmes laques, peintures et émaux réalisés précédemment, des avantages nombreux et importants, notamment un plus rapide séchage et durcissement final
des revêtements, dont la résistance est fortement accrue.
<EMI ID=2.1>
tenir une peinture comprenant ou non un primer et convenant particulièrement
pour son application sur métaux, bois, asbestes-ciment, bétons ou agglomérés
fibreux, composée comme suit s
<EMI ID=3.1>
exemple du brevet principal, obtenu par cuisson en présence d'acides gras non saturés, préparés à partir de
l'huile de ricin déshydratée
26,- % de bioxyde de titane
2,25 % de Desmodur TH
0,096 grammes de cobalt sous forme d'octoate de cobalt,
le tout dissout en xylolo
De même un vernis transparent pour métaux peut être obtenu par le
mélange suivant :
40,- % de l'ester de la résine époxy, décrite dans le troisième
exemple du brevet principal, obtenu par cuisson en présence d'acides gras non saturés, préparés à partir de l'huile
de ricin déshydratée
4,125% de Desmodur TH
0,162 grammes de cobalt sous forme d'octoate de cobalt, le tout
dissout en xylol.
Bien entendu les exemples de composition cités ci-dessus ne sont
donnés qu'à titre exemplatif non limitatifs de l'invention. Celle-ci englobe
également toutes autres compositions similaires équivalentes ainsi que les
laques, peintures et émaux obtenus par leur emploi et les revêtements de toutes
sortes réalisés par leur moyen, ainsi qu'il est revendiqué ci-dessous.
<EMI ID=4.1>
MANUFACTURING PROCESS OF LACQUERS, ENAMELS AND PAINTS AND PRODUCTS OBTAINED BY
ITS APPLICATION.
The main patent relates to the manufacture of lacquers, enamels and paints by the use of binders formed from epoxy resins in combination with di- or poly-isocyanates, as well as the lacquers, paints and enamels obtained in this way and coatings, produced by their use.
It is known that, by baking, it is possible to esterify epoxy resins with unsaturated fatty acids to obtain esters very similar to a glycerophthalic resin or an alkyd, of which they also exhibit the characteristics. Like alkyds, these esters can be used as binders for paints and enamels, which by adding siccatives, dry either in air or in the oven, depending on the case and the type of fatty acids used for esterification.
In the preparation of said esters of epoxy resins, however, only part of the fatty acids necessary for the esterification of all the OH groups available can be applied. Experience shows that if the proportion of fatty acids exceeds about 40 to 50% of these OH groups available in the epoxy resin molecule, difficulties appear during curing while esters with the best weather resistance are obtained. , if we stick to the partial esterification of the aforementioned measure.
The invention has found that a considerable improvement in the results obtained by the use of epikote esters is achieved if one applies
<EMI ID = 1.1>
if in the manner described therein they are combined with the di- or polyisocyanates. In the present case, smaller amounts of diou polyisocyanates will be used, for the reason that they must only react with part of the epoxy resins used at the start, the useful amounts being able to be easily calculated based on the degree of prior esterification.
paints and enamels based on epikote esters, compared to
same lacquers, paints and enamels made previously, many important advantages, in particular faster drying and final hardening
coatings, the resistance of which is greatly increased.
<EMI ID = 2.1>
hold a painting including or not a primer and particularly suitable
for its application on metals, wood, asbestos-cement, concrete or agglomerates
fibrous, composed as follows s
<EMI ID = 3.1>
example of the main patent, obtained by cooking in the presence of unsaturated fatty acids, prepared from
dehydrated castor oil
26, -% titanium dioxide
2.25% Desmodur TH
0.096 grams of cobalt in the form of cobalt octoate,
all dissolved in xylolo
Likewise a transparent varnish for metals can be obtained by
following mixture:
40, -% of the ester of the epoxy resin, described in the third
example of the main patent, obtained by cooking in the presence of unsaturated fatty acids, prepared from oil
dehydrated castor
4.125% Desmodur TH
0.162 grams of cobalt in the form of cobalt octoate, the whole
dissolved in xylol.
Of course, the composition examples cited above are not
given only by way of non-limiting example of the invention. This encompasses
also any other equivalent similar compositions as well as
lacquers, paints and enamels obtained by their use and coatings of all
kinds made by them, as claimed below.
<EMI ID = 4.1>
Claims (1)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE338263X | 1953-06-25 | ||
BE280853X | 1953-08-28 | ||
NL200454X | 1954-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE522407A true BE522407A (en) |
Family
ID=27159635
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE520976D BE520976A (en) | 1953-06-25 | ||
BE522407D BE522407A (en) | 1953-06-25 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE520976D BE520976A (en) | 1953-06-25 |
Country Status (5)
Country | Link |
---|---|
BE (2) | BE522407A (en) |
CH (1) | CH338263A (en) |
DE (1) | DE1031911B (en) |
FR (1) | FR1110320A (en) |
LU (1) | LU32962A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE582476A (en) * | 1958-09-11 | |||
EP0014808A1 (en) * | 1979-01-04 | 1980-09-03 | Ford Motor Company Limited | Coating composition |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR960044A (en) * | 1945-09-18 | 1950-04-12 | ||
NL67031C (en) * | 1946-04-10 | |||
CH264479A (en) * | 1947-06-26 | 1949-10-15 | Vickers Electrical Co Ltd | Rail vehicle with at least one bogie and a car body suspended from the latter. |
GB693747A (en) * | 1949-01-19 | 1953-07-08 | British Thomson Houston Co Ltd | Improvements in and relating to resinous compositions |
-
0
- BE BE520976D patent/BE520976A/fr unknown
- LU LU32962D patent/LU32962A1/xx unknown
- BE BE522407D patent/BE522407A/fr unknown
-
1954
- 1954-06-22 CH CH338263D patent/CH338263A/en unknown
- 1954-06-23 DE DES39724A patent/DE1031911B/en active Pending
- 1954-06-25 FR FR1110320D patent/FR1110320A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
LU32962A1 (en) | |
FR1110320A (en) | 1956-02-10 |
BE520976A (en) | |
CH338263A (en) | 1959-05-15 |
DE1031911B (en) | 1958-06-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE522407A (en) | ||
US2330337A (en) | Alpha | |
US2308595A (en) | Drier | |
US3086949A (en) | Process of converting free carboxylic acid groups in liquid ester coating compositions to half-ester groups with retention of the coating composition in the liquid state | |
US2212385A (en) | Producing synthetic drying oil | |
US2358623A (en) | Coating composition | |
US2381653A (en) | Method of producing rapid drying | |
RU2711366C2 (en) | Composition for producing alkyd resins | |
GB500348A (en) | Improvements in or relating to synthetic resinous compositions | |
US2373177A (en) | Wrinkle finish drying compositions | |
US2744832A (en) | Wrinkle drying oil siccative | |
US2098503A (en) | Method of incorporating metallic driers in drying oil alkyd-nitrocellulose blends | |
US1214611A (en) | Manufacture of varnishes, paints, and other protective or coating preparations. | |
US2189833A (en) | Resinous condensation products and method of producing same | |
DE915745C (en) | Process for the preparation of modified alkyd resins | |
US2088612A (en) | Jpolyhydric aicohol-folybasic acto | |
US2563784A (en) | Interpolymerization of vinyl aromatic compound and oil-modified alkyd in the presence of sulfur | |
SU68533A1 (en) | Catalyst for the oxidation of olefins to aldehydes and ketones | |
BE610319A (en) | Improvements to the processes for preparing alkyd resins | |
US1968244A (en) | Protective coating composition | |
US2395361A (en) | Blown wrinkle varnish base | |
US1813735A (en) | Lacquering composition and method of employing same | |
US2251802A (en) | Process of making dipolymer varnish | |
US2425756A (en) | Method of making vabnishes from | |
DE921174C (en) | Process for the production of alkyd resins |