Patent ID: 9574078
Date: 2017-02-21
CPC Classifications: C08F,C08G,C08L,C09D

Claim:
1. An aqueous copolymer dispersion comprising a copolymer (P) synthesized from a mixture of free-radically polymerizable monomers (M) comprising: (M1) a cycloaliphatic ester of acrylic and/or methylacrylic acid, (M3) a hydroxy-functional, free-radically polymerizable monomer, (M4) a carboxyl-functional, free-radically polymerizable monomer, (M5) a hydroxyl- and carboxyl-free (meth)acrylic ester having C1 to C12 hydrocarbon radicals in the alcohol moiety different from (M1) and/or a vinyl aromatic monomer, wherein the mixture further comprises a polyol different from (M3) selected from the group of polyester polyol, polycarbonate polyol, and mixtures thereof, wherein the polyol has an average hydroxyl group functionality of at least 2, and wherein the polyol has a hydroxyl group content of ≧15 weight-% to ≦35 weight-%.