摘要:
An invention relating to a copolymer comprising structural units derived from monomers which are (A) at least one ethylenically unsatured alcohol, carboxylic acid or ester, with at least one of (B) an ethylenically unsaturated carboxylic ester with a polar group in the ester, and (C) an ethylenically unsaturated carboxylic amide, said copolymer being of molecular weight less than 20000.
摘要:
A polymer having structural units derived from an ester (1) of an aliphatic carboxylic acid with an aliphatic alcohol, wherein either the acid or the alcohol is ethylenically unsaturated and the other of the acid or alcohol has a medium length chain group of 4-40 carbon atoms; said polymer having a molecular weight of less than 30,000.