Patent ID: 6740590
Filing Date: 2004-05-25
Classification: C09G,C09K,H01L

Abstract:
A dispersion comprising polymer particles, inorganic particles and water, wherein the zeta potential of said polymer particles and the zeta potential of said inorganic particles are of opposite signs, and said polymer particles and said inorganic particles are electrostatically bonded to form composite particles,wherein said polymer particles have at least one functional group selected from the group consisting of a carboxyl group, an anion of a carboxyl groups, a sulfonic acid group and an anion of a sulfonic acid group, and said inorganic particles arc alumina, titania, or combinations thereof, and wherein a plurality of said inorganic particles are attached to a surface of each of said polymer particles, and a ratio (Sp/Si) of a mean particle size of said polymer particles (Sp) and a mean particle size of said inorganic particles (Si) is from 1 to 40, and the mean particle size of the composite particles is 0.1 to 1.0 &mgr;m.