Patent ID: 9593256
Date: 2017-03-14
CPC Classifications: C08F,C08G,C09D

Claim:
1. An aqueous secondary copolymer dispersion comprising a copolymer (P) synthesized from a mixture of free-radically polymerizable monomers (M) comprising: (M1) ≧0.1 weight-% to ≦3 weight-% of a cycloaliphatic ester of acrylic and/or methylacrylic acid, (M2) ≧0.1 weight-% to ≦3 weight-% of a vinyl ester of aliphatic carboxylic acid, (M3) ≧10 weight-% to ≦30 weight-%, of a hydroxy-functional, free-radically polymerizable monomer, (M4) ≧1 weight-% to ≦10 weight-% of a carboxyl-functional, free-radically polymerizable monomer, and (M5) ≧40 weight-% to ≦80 weight-% of a hydroxyl- and carboxyl-free (meth)acrylic ester having C1 to C12 hydrocarbon radicals in the alcohol moiety and/or vinyl aromatic monomer, wherein the mixture further comprises a glycidyl ester of an aliphatic carboxylic acid in an amount of ≧5 weight-% to ≦20 weight-%, based on the total weight of the solids in the dispersion, the amounts given adding up to ≦100 weight-%.