Patent ID: 9261783
Filing Date: 2016-02-16
CPC Classification: C07C,C08F,G03F

Claim Text:
1. A polymer comprising: recurring units having the general formula (1a) wherein R R R wherein R 2 and R 3 are as defined above, R 4a is a primary C 1 -C 5 alkyl group, a C 2 -C 8 fluoroalkyl group or a group: MeO(CH 2 CH 2 O) n CH 2 CH 2 — or EtO(CH 2 CH 2 O) n CH 2 CH 2 — wherein Me is methyl, Et is ethyl, and n is 0, 1 or 2, and the broken line denotes a valence bond, and k is 0 or 1; and wherein R 1 , R 2 , and R 3 are as defined above, A is a straight, branched or cyclic C 1 -C 6 alkylene group, and b is a number in the range: 0≦b<1.0.