Patent ID: 6492090
Filing Date: 2002-12-10
Classification: C08F,G03F

Abstract:
A polymer comprising units of the following general formula (1) and units of the following general formula (2) and having a weight average molecular weight of 1,000 to 500,000, wherein R1 is hydrogen, methyl or CH2CO2R3, R2 is hydrogen, methyl or CO2R3, R3 is a straight, branched or cyclic alkyl group of 1 to 15 carbon atoms, R4 is hydrogen a straight, branched or cyclic alkyl group of 1 to 15 carbon atoms, a straight, branched or cyclic alkoxyalkyl group of 2 to 15 carbon atoms, or a straight, branched or cyclic acyl group of 1 to 15 carbon atoms, R5 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, Y is a divalent hydrocarbon group of 4 to 15 carbon atoms which may contain a hetero atom and which forms a ring with the carbon atom to which it is connected at opposite ends, Z is a trivalent hydrocarbon group of 1 to 10 carbon atoms, Z may form a ring with R1, with the proviso that R1 is methylene and Z is a tetravalent hydrocarbon group of 1 to 10 carbon atoms when they form a ring, k is 0 or 1, and W is â€”Oâ€” or â€”(NR)â€” wherein R is hydrogen or a straight, branched or cyclic alkyl group of 1 to 15 carbon atoms.