Patent ID: 7193005

Claim:
An aqueous polymer dispersion comprising: a) 50–70% by weight of polymer particles comprising at least two different copolymers having glass transition temperatures each above 50° C., and synthesized from at least 80% by weight, of at least one principal monomer, 0.1–10%, by weight of at least one auxiliary monomer, and 0–3%, by weight of at least one crosslinker molecule, with the proviso that the sum makes 100% by weight, wherein the polymer particles comprise core-shell particles having a core and at least one shell, and wherein the difference in the glass transition temperatures (T g ) of the different polymers is being at least 10° C.; and b) 30–50%, by weight, of at least one polyfunctional (meth)acrylate, and wherein the dispersion a) is subjected to physical and/or chemical deodorization.