PREPARATIONS OF REACTION PRODUCTS OF EPOXIDES AND EPOXY SILICONES,PROCESSES FOR THEIR MANUFACTURE AND THEIR USE

1406869 Reaction products of epoxides and epoxy-silicones CIBA-GEIGY AG 6 Nov 1972 [11 Nov 1971] 51123/72 Headings C3B and C3T [Also in Division D1] Stable preparations of epoxide reaction products are prepared by reacting (a) a reaction product of (a 1 ) an epoxide which contains at least 2 epoxide groups per molecule and is free of siloxane groups, (a 2 ) an epoxy-silicone which contains at least 2 epoxide groups and (a 3 ) a C 12 -C 22 fatty amine with (b) an aliphatic saturated dicarboxylic acid or a polyaminoamide in the presence of an oganic solvent at 25 degrees to 120‹ C. and optionally subsequently further reacting with (C) a polyfunctional compound which possesses, as functional groups or atoms, mobile halogen, vinyl or carboxylic acid ester groups and optionally at most one carboxylic acid, cyano, hydroxyl or epoxide group. Preferred epoxides (a 1 ) are derived from polyhydric phenols or polyphenols such as resorcinol or phenol-formaldehyde condensates, or more particularly from bis-phenols, e.g. a polyglycidyl ether of 2,2-bis-(41-hydroxyphenyl)-propane. The epoxy-silicone component (a 2 ) preferably has an average molecular weight of 103 to 106 and contains structural units of the formula -(R 1 R 2 )SiO-, and -(R 3 )(Q)Si-O-, wherein R 1 -R 3 are C 1 -C 10 alkyl or alkoxy radicals, or an aryl radical and Q is a monovalent organic radical, preferably a C 3 -C 8 aliphatic radical, which carries a vicinal epoxide group. Preferred monofatty amines (a 3 ) have the formula H 3 C(CH 2 ) x NH 2 wherein x = 11- 21. Preferred components (b) are aliphatic saturated dicarboxylic acids of at least 7 carbon atoms which can optionally be used together with an anhydride of an aromatic dicarboxylic acid with at least 8 carbon atoms or of an aliphatic mono- or di-carboxylic acid with at least 4 carbon atoms. Preferred acids (b) have the formula HOOC(CH 2 ) y COOH where y=5- 12, and preferred anhydrides are maleic or phthalic anhydride. Component (b) can also be a polyaminoamide which is preferably obtained by condensation of a polymeric unsaturated fatty acid, preferably aliphatic ethylenically unsaturated dimeric to trimeric fatty acids, with a polyalkylenepolyamine. The preferred polyaminoamide is a reaction product of dimerized to trimerized linoleic or linolenic acid with a polyamine of the formula wherein n = 1, 2 or 3. Preferred component (c) is an epihalogenohydrin, others being glycerine dichlorohydrin, acrylic acid, methylolacrylamide and acrylonitrile