Patent ID: 6512067
Filing Date: 2003-01-28
Classification: C08F,G03F

Abstract:
A polymer comprising recurring units of the followinggeneral formula (1-1) and having a weight average molecular weight of 1,000 to 500,000, whereinR1, R2, R3, and R4 each are hydrogen or a straight, branched or cyclic alkyl group of 1 to 15 carbon atoms, R1 and R2, and R3 and R4, taken together, may form a ring, wherein each combination of R1 with R2 and of R3 with R4 is a straight, branched or cyclic alkylene group of 2 to 15 carbon atoms, R5 and R6 each are hydrogen, a straight, branched or cyclic alkyl, acyl or alkylsulfonyl group of 1 to 15 carbon atoms or a straight, branched or cyclic alkoxycarbonyl or alkoxyalkyl group of 2 to 15 carbon atoms, in which some or substituted with halogen atoms, and k is 0 or 1.