Patent ID: 8669328

Claim:
A composition comprising a dispersion of at least one (meth)acrylate polymer A) and at least one (meth)acrylate polymer B) in water, wherein: for every 100 parts by weight of the (meth)acrylate polymer A) there is from 1-400 parts by weight of the (meth)acrylate polymer B); the (meth)acrylate polymer B) comprises at least one compound of formula (I) copolymerized and different from the (meth)acrylate polymer A); the polymers A) and B) are obtained by emulsion polymerization of a mixture comprising: a) from 0.1 to 99.9 percent by weight of the at least one compound of formula (I); wherein: R 1 is hydrogen or methyl; R 2 is oxygen or NH; R 3 is a moiety of formula (II): wherein: R 7 , R 8 , and R 9 , independently of one another, are hydrogen or methyl; n is a whole number of from zero to two hundred; and o and p, independently of one another, are a whole number of from zero to two, wherein R 3 is a bond if a sum of n, o and p is zero; R 4 is a bond, oxygen, NH, NH, O—CO—O, HN—CO—O, HN—CO—NH or sulphur; R 5 is hydrogen, halogen, a moiety having from one to 20 carbon atoms, or optionally a moiety with 1 to 20 carbon atoms and substituted by an atom selected from the group consisting of oxygen, nitrogen, and sulphur; m is a whole number of from one to five; and R 6 is an aryl or a heterocyclyl moiety; and b) from 99.9 to 0.1% by weight of at least one ethylenically unsaturated monomer, which differs from, and is copolymerizable with, the at least one compound of formula (I), wherein: the at least one compound of formula (I) and the at least one ethylenically unsaturated monomer together give 100% by weight of polymerizable constituents of the mixture; and the parts by weight of the (meth)acrylate polymer A) and the (meth)acrylate polymer B) are based on a solids content of the (meth)acrylate polymers A) or B) in the dispersion.