Patent ID: 7632883

Claim:
An aqueous synthetic resin formulation, comprising: A) from 3 to 75% by weight of at least one synthetic resin, denoted as resin A comprising a) from 50 to 99.9% by weight of at least one ester of α,β-monoethylenically unsaturated carboxylic acids having 3 to 6 carbon atoms and alkanols having 1 to 18 carbon atoms or of at least one vinyl ester of an aliphatic monocarboxylic acid having 2 to 8 carbon atoms, or of a mixture of thereof, denoted as monomers a, b) from 0.1 to 12% by weight of at least one α,β-monoethylenically unsaturated monobasic or dibasic acid having 3 to 8 carbon atoms, or anhydrides thereof, or of a mixture thereof, denoted as monomers b, c) from 0 to 10% by weight of one or more monoethylenically unsaturated acetophenone derivatives or benzophenone derivatives, or of a mixture of thereof, denoted as monomers c, and d) from 0 to 50% by weight of one or more other copolymerizable monoethylenically unsaturated monomers, denoted as monomers d, in copolymerized form, the weight fractions of the monomers a, b, and d being selected within the stated limits such that a synthetic resin consisting of the monomers a, b and d would have a glass transition temperature ranging from −50 to +40° C.; B) at least one metallic cation with a charge number ranging from 2 to 4 in water-soluble form to neutralize from 0.2 to 6 times the amount of its conjugate bases that corresponds to the amount of acid functions incorporated into the synthetic resin A in the form of the monomers b, denoted as component B; C) from 0 to 10% by weight, based on the resin A, of benzophenone or acetophenone or of one or more acetophenone derivatives or benzophenone derivatives which are not monoethylenically unsaturated, or of a mixture of these active substances, denoted as component C; D) a dispersant; E) at least 5% by weight of water; and F) from 0 to 85% by weight of finely divided fillers, denoted as filler F, wherein the resin A is prepared by free-radically initiated aqueous emulsion polymerization of the monomers a to d in the presence of from 0.01 to 3 parts by weight of an alien polymer seed, based on 100 parts by weight of the mixture of the monomers a to d.