Patent ID: 6444396
Filing Date: 2002-09-03
Classification: C07C,C08F,G03F,Y02P,Y10S

Abstract:
A polymer comprising units of an ester compound of the following general formula (1a-1) or (1a-2): wherein R1 is hydrogen, methyl or CH2C2R4; R2 is hydrogen, methyl or C2R4; R3 is a straight, branched or cyclic alkyl group of 1 to 8 carbon atoms or a substituted or unsubstituted aryl group of 6 to 20 carbon atoms; R4 is a straight, branched or cyclic alkyl group of 1 to 15 carbon atoms; k is equal to 0 or 1, m is equal to 0 or 1, n is equal to 0, 1, 2 or 3, and 2m+n is equal to 2 or 3, said polymer having a weight average molecular weight of 1,000 to 500,000.