Patent ID: 8318882
Filing Date: 2012-11-27
Classification: C08F,C09D

Abstract:
1. An anionic modified copolymer obtained by polymerization of the monomers (A), (B) and (C) to obtain a nonionic copolymer having reactive terminal OH groups and conversion of the terminal OH groups to anionic end groups, wherein the anionic end groups are radicals SO 3 M, CH 2 COOM, PO 3 M 2 or sulfosuccinate, where M is H, a monovalent metal cation, a divalent metal cation, NH 4 + , a secondary, tertiary ammonium ion, quaternary ammonium ion or a combination thereof, (A) is a monomer of formula (I) wherein A is C B is a C k equals 0 or 1, m is from 0 to 500, n is from 0 to 500, provided the sum total of m+n is from 1 to 1000; wherein the monomer (B) is a compound of formula (IIa) or (IIb): wherein X Z Z Z wherein R X W wherein the monomer (C) is a compound of formula (IIIa) or formula (IIIb): wherein R Y is an aliphatic hydrocarbyl radical having 1 to 30 carbon atoms, W wherein R