Patent ID: 6451950
Filing Date: 2002-09-17
Classification: C08F,C09D

Abstract:
A composition for use as a pigment dispersant in solvent borne systems, comprising a random copolymer having both pigment anchoring segments and stabilizing segments in a polymer chain, wherein the(1) the stabilizing segments are relatively non-polar in comparison to the pigment anchoring segments and consist essentially of ethylenically unsaturated monomers that are polymerized into the polymer chain and (2) the pigment anchoring segments consist essentially of ethylenically unsaturated monomers that are polymerized into the polymer chain and have pigment anchoring groups bonded thereto, wherein the pigment anchoring groups are selected from at least one amide group and one or more additional anchoring groups selected from the group consisting of aromatic esters, aromatic amines, and quaternary ammonium groups.