Patent ID: 6558464
Filing Date: 2003-05-06
Classification: C01G,C01P,C09C

Abstract:
A high solids slurry of anatase TiO2 pigment comprising greater than 75% by weight of anatase TiO2 pigment dispersed in water and a dispersing agent; wherein said dispersing agent is selected from the group consisting of i) acrylic acid homopolymers and ii) copolymers that are predominantly acrylic acid and contain at least one comonomer selected from the group consisting of maleic acid, methacrylic acid, itaconic acid, crotonic acid, fumaric acid, acrylamids, acrlonitrile, ethylene, propylene, strene and esterss of the acids, wherein the homopolymers or copolymers have been partially or completely neutralized with a neutralizing agent having a monovalent group and at least one neutralizing agent having a polyvalent group.