Patent ID: 7776983
Filing Date: 2010-08-17
Classification: C08F,C09D,C11D

Abstract:
1. A polymeric surfactant of the formula: wherein a represents a value from 1 to 50 and b represents a value from 1 to 50, and wherein said surfactant is the reaction product of (a) a fluorinated monomer of the formula wherein R f is a C 2 —C 5 fluoroalkyl group; R is alkyl or aryl; R 2 is hydrogen or CH 3 ; and n is an integer of from 1 to 10; (b) a non-fluorinated monomer of the formula wherein X is O, N(R 1 ) or S; R 1 is hydrogen or a C 1 to C 4 alkyl group; R 2 is as defined above; n′ is an integer from 0 to 20; and Y is a hydrogen when n′ =0 or a hydrophilic group when n′ >0, wherein the hydrophilic group is independently —SO 3 M, —OSO 3 M, —COOM, —N(R 1 ) 3 Z, —N(R 1 ) 2 O, —N(R 1 ) 2 —(CH 2 ) n″ COOH, —N(R 1 ) 2 —(CH 2 ) n″ SO 3 H, —(EO) p (PO) q (EO) p -R 1 , or —(PO) q (EO) p (PO) q -R 1 , wherein M is hydrogen, a metal ion, NH 4 + , or a protonated tertiary amine; R 1 is hydrogen or a C 1 to C 4 alkyl group; EO is oxyethylene; PO is oxypropylene; Z is a halide or acetate; p is from 1 to 128, q is from 0 to 54; and n″is an integer from 1 to 20; and (c) a chain transfer agent, wherein G is —S-R