Patent ID: 9261785
Filing Date: 2016-02-16
CPC Classification: C08F,G03F,H01L

Claim Text:
1. A polymer compound, comprising: a monomer unit (a) represented by Formula (a); and a monomer unit (b) comprising an alicyclic skeleton comprising a polar group, Formula (a) expressed as follows: wherein R is selected from hydrogen, halogen, and optionally halogenated C 1 -C 6 alkyl; R 1 and R 2 each represent, identically or differently, optionally substituted C 1 -C 6 alkyl; R 3 is a substituent bonded to Ring Z 1 and is, independently in each occurrence, selected from oxo, alkyl, optionally protected hydroxyl, optionally protected hydroxyalkyl, optionally protected carboxy, and cyano; n represents an integer from 0 to 3, where, when n is 2 or 3, two or three occurrences of R 3 may be identical or different; and Ring Z 1 represents a C 3 or C 4 alicyclic hydrocarbon ring, wherein the monomer unit (b) comprises at least one selected from the group consisting of monomer units (b1) to (b5) respectively represented by Formulae (b1) to (b5): wherein R is, independently in each occurrence, selected from hydrogen, halogen, and optionally halogenated C 1 -C 6 alkyl; A is, independently in each occurrence, selected from a single bond and a linkage group; X is, independently in each occurrence, selected from non-bond, methylene, ethylene, oxygen, and sulfur; Y is selected from methylene and carbonyl; R 4 , R 5 , R 6 , R 7 , and R 8 are each, identically or differently, selected from hydrogen, alkyl, optionally protected hydroxyl, optionally protected hydroxyalkyl, optionally protected carboxy, and cyano.