Patent ID: 7300990
Filing Date: 2007-11-27
Classification: C08F

Abstract:
1. A block copolymer of the A-B or A-B-A type in which A and B are different in which at least one of the A and B is formed from ethylenically unsaturated monomer including a zwitterionic monomer of the general formula VI in which Y is an ethylenically unsaturated group selected from the group consisting of H 2 C═CR—CO-A-, H 2 C═CR—C 6 H 4 -A 1 -, H 2 C═CR—CH 2 A 2 , R 2 O—CO—CR═CR—CO—O, RCH═CH—CO—O—, RCH═C(COOR 2 )CH 2 —CO—O, A is —O— or NR A A R is hydrogen or C R R B is selected from the group consisting of a bond and straight and branched alkanediyl, alkylene oxaalkylene, or alkylene (oligooxalkylene) groups, optionally containing one or more fluorine substituents; and X