Patent ID: 6809148
Filing Date: 2004-10-26
Classification: C04B,C08F

Abstract:
A polymer dispersion comprising at least one copolymer which contains, as polymerized monomers,a) from 25 to 70% by weight of at least one conjugated aliphatic diene, b) from 25 to 70% by weight of at least one vinylaromatic monomer, c) from 2.5 to 15% by weight of at least one monoester of a C2-C10-alkanediol with acrylic acid or methacrylic acid, câ€²) from 0.1 to 10% by weight of at least one alkylpolyethylene glycol (meth)acrylate of formula (I) where R1 is hydrogen or methyl, R2 is C1-C4-alkyl and n is an integer from 1 to 100, or câ€³) from 2 to 15% by weight of a mixture of the monooester (c) and the alkylpolyethylene glycol (meth)acrylate câ€²), d) from 0 to 1.0% by weight of ethylenically unsaturated monomers which have at least one acid group, or salts thereof, e) from 0 to 5.0% by weight of ethylenically unsaturated nitrites, and f) from 0 to 1.0% by weight of amides of &agr;,&bgr;-ethylenically unsaturated mono- and dicarboxylic acids, with the proviso that no protective colloid is present in the copolymer dispersion and the copolymer has a glass transition temperature ranging from more than âˆ’30Â° C. to less than +30Â° C.