Patent ID: 8383724

Claim:
Aqueous coating compositions comprising: an aqueous binder mixture A) comprised of: A1) 25% to 70% by weight of a secondary, hydroxy-functional polyacrylate dispersion or a secondary, hydroxy-functional polyacrylate emulsion having a solids content of between 20% and 60% by weight, A2) 5% to 50% by weight of an aliphatic polyurethane dispersion having a solids content of between 25% and 60% by weight, and A3) 20% to 70% by weight of a hydroxy-functional polyester-polyurethane dispersion composed to an extent of at least 75% by weight of a polyester of molecular weight 500 to 2,500 g/mol and having a solids content of between 25% and 55% by weight, wherein the percentages by weight of A1), A2) and A3) are based on the aqueous binder mixture A); and B) at least one crosslinker, necessarily including one component A1) and/or A3) in an amount of at least 35% by weight.