Patent ID: 6146810
Filing Date: 2000-11-14
Classification: C08F,G03F,Y10S

Abstract:
A copolymer, represented by the following general formula I: ##STR34## wherein, X is selected from the group consisting of the following general formulas II, III and IV: ##STR35## wherein R.sub.1 is selected from the group consisting of straight or branched alkyl groups, cyclic or polycyclic alkyl groups, alkyl carbonyl groups, branched alkyl carbonyl groups, and cyclic or polycyclic alkyl carbonyl groups, all containing 1-10 carbon atoms; R.sub.2, R.sub.3 and R.sub.4 are independently selected from the group consisting of straight or branched alkyl groups, and cyclic or polycyclic alkyl groups, all containing 1-10 carbon atoms; andl, m, n and o each are a repeating number not more than 0.5, satisfying the condition that l+m+n+o=1 and 0.4.ltoreq.o.ltoreq.0.5.