Patent ID: 7605196
Filing Date: 2009-10-20
Classification: C04B,C08F

Abstract:
1. A water-soluble, sulpho group-containing copolymer consisting essentially of at least one of a) from 3 to 96 mol % of formula (I) wherein R R M is hydrogen, a monovalent or divalent metal cation, an unsubstituted ammonium ion or an ammonium ion substituted by organic radicals; and a is ½ or 1; and b) from 3 to 96 mol % of formula (II) wherein R R and c) from 0.01 to 10 mol % of the structural groups of formula (III) wherein Y is —COO(C R  or an unsaturated or saturated, linear or branched aliphatic alkyl radical containing 10 to 40 carbon atoms, R n is from 2 to 4, p is from 0 to 200, q is from 0 to 20, x is from 0 to 3 and R or d) from 0.1 to 30 mol % of the structural groups of formula (IV) wherein Z is —(CH R R