Patent ID: 6255400
Filing Date: 2001-07-03
Classification: C08F,C09D,D21H

Abstract:
A polymer (B) prepared by polymerizing one or more vinyl monomers (c) in the presence of a polymer (A) prepared by polymerizing one or more vinyl monomers (a) selected from the group consisting of vinyl monomers represented by the general formula (1): ##STR5##wherein R.sub.1 represents a hydrogen atom or a lower alkyl with 1 to 3 carbon atoms and n is an integer of 1 to 8 and their salts with one or more vinyl monomers (b) which are co-polymerizable with the vinyl monomer components (a) wherein at least one of vinyl monomers (b) is an ionic monomer and at least one of the vinyl monomers (b) is (meth)acrylamide.