Patent ID: 6440636
Filing Date: 2002-08-27
Classification: C08F,G03F

Abstract:
A polymeric compound comprising at least one monomeric unit represented by the following formula (I): wherein R1 is a hydrogen atom or a methyl group; and each of R2 and R3 is independently a hydrogen atom or a hydroxyl group, and at least one monomeric unit selected from monomeric units represented by the following formulae (IIa) and (IIb): wherein R1 is a hydrogen atom or a methyl group; each of R4 and R5 is independently a hydrogen atom, a hydroxyl group, a carboxyl group, or a â€”COOR6 group, wherein R6 is a t-butyl group, a 2-tetrahydrofuranyl group, a 2-tetrahydropyranyl group or an 2-oxepanyl group, and wherein R4 and R5 are not concurrently hydrogen atoms; and each of R7 and R8 is independently a hydrogen atom, a hydroxyl group, or an oxo group.