GRAFT COPOLYMERS HAVING EXCELLENT PIGMENT DISPERSIBILITY, THOSE PRODUCING METHODS, PRODUCING METHODS OF EMULSIONS USING THE COPOLYMERS, AND PIGMENT DISPERSION LIQUIDS USING THE COPOLYMERS OR THE EMULSIONS

摘要

PROBLEM TO BE SOLVED: To provide a pigment resin dispersant which in case of the pigment dispersed as a pigment dispersant, its dispersion stability becomes good by showing affinity to water, and which can obtain a good pigment dispersion liquid due to adsorbing to the pigment by having pigment affinity, and to provide a water-soluble resin, a water dispersion or an emulsion which can be used as a good binder component.

SOLUTION: In a graft copolymer comprising copolymerizing a macromonomer (A) and a monomer (B), the macromonomer (A) is a polymer comprising an ester monomer (a) of an addition polymerizable unsaturated carboxylic acid and an aliphatic alcohol, and an addition polymerizable monomer (b) having an acid group, the polymer having an addition polymerizable group at the terminal, and an acid value of 100-300, and the monomer (B) is the addition polymerizable monomer, the macromonomer (A) unit occupying 20-50 mass% of the total graft copolymer, and the monomer (B) unit occupying 50-80 mass% thereof.

COPYRIGHT: (C)2005,JPO&NCIPI