USE OF LOW MOLECULAR-WEIGHT ACRYLATE RESINS CONTAINING HYDROXYL AND TERTIARY AMINE GROUPS AS CROSS-LINKING AGENTS FOR POLYISOCYANATES

摘要

A reaction product of an acrylate resin containing glycidyl groups and secondary mono-amines containing hydroxyl groups, obtained by reacting of said acrylate resin of copolymerized, statistically distributed units of (A) 3 to 30% by weight of the glycidyl ester of (meth)acrylic acid and/or of vinyl glycidyl ether; (B) 0 to 20% by weight of at least a hydroxy C2-C4 alkyl ester of (meth)acrylic acid; (C) 5 to 80% by weight of at least an optionally substituted styrene, methyl methacrylate, (meth)acrylonitrile or any mixture thereof; (D) 5 to 70% by weight of an acrylic acid C1-C12-alkyl-or of a methacrylic acid C2-C12-alkyl ester or any mixture thereof; and (E) 0 to 10% by weight of an alpha , beta -mono-olefinically unsaturated monocarboxylic or dicarboxylic acid containing from 3 to 5 carbon atoms or of a maleic acid C2-C14-mono ester or any mixture thereof, with at least one secondary mono-amine containing at least one secondary hydroxyl group. The reaction products are useful for crosslinking polyisocyanates.