Patent ID: 6033826
Filing Date: 2000-03-07
Classification: C08F,C09D,G03F,Y10S

Abstract:
A polymer having repeating units of the formula: ##STR29## wherein R.sup.1 and R.sup.2 are independently a hydrogen atom or a lower alkyl group; R.sup.3 and R.sup.4, which cannot be both hydrogen atoms, are independently a hydrogen atom or an alkyl group which may be substituted with one or more halogen atom, or R.sup.3 and R.sup.4 can form an alkylene ring together with the interposing carbon atom; R.sup.5 is an alkyl group which may be substituted with one or more halogen atom, or an aralkyl group; R.sup.6 is a phenyl group which may have one or more substituent, a carboxyl group which may be substituted with an alkyl group, or a cyano group; m and n are independently an integer of 1 or more; k is zero or an integer of 1 or more, provided that 0.1.ltoreq.(m+k)/(m+n+k).ltoreq.0.9 and 0.ltoreq.k/(m+n+k).ltoreq.0.25, said polymer having a degree of molecular weight dispersion of 1 or more, and less than 1.5.