Patent ID: 7902312

Claim:
A Michael addition adduct comprising the formula: wherein X 1 is selected from the group consisting of carboxyl, carboxamide, hydroxyl, amine, alkylamine, alkanoxyl, alkenyl, alkyenyl, nitro and cyano groups and X 2 comprises any electron-withdrawing group or amine, R 1 and R 2 may be the same or different and are selected from the group consisting of H, alkyl, alkenyl, alkyenyl, carbonyl, carboxyl, and carboxamide groups, m and n and q are positive integers, representing numbers of its repeating unit distributed in the polymer in a random fashion, m+q ranges from 2,000 to 20,000, m/(m+q) ranges from 2/100 to 95/100 and n is a positive integer between 0 to 18,000.