Patent ID: 6656595
Filing Date: 2003-12-02
Classification: C08F,C08L,C09D,Y10T

Abstract:
A pigment dispersing resin having a weight-average molecular weight within a range of 3,000-100,000, which is obtained by copolymerizing a monomeric mixture comprisinga macro monomer (A) which is obtained by (co)polymerizing monomeric component comprising at least one polymerizable monomer selected from methacrylic acid esters and styrene and optionally methacrylic acid, in the presence of a metal complex which is a catalytic chain transfer agent or an addition-cleavage-type chain transfer agent and optionally a radical polymerization initiator, a polymerizable, unsaturated monomer (B) which contains at least one ionic functional group selected from amino, quaternary ammonium salt and sulfonic acid groups, a nonionic, polymerizable unsaturated monomer (C) containing a polyoxyalkylene chain and other ethylenically unsaturated monomer(s) (D), in the presence of a radical polymerization initiator.