PIGMENT COMPOSITE AND METHOD OF ITS MANUFACTURING Russian patent published in 1999 - IPC

FIELD: composite materials. SUBSTANCE: composite contains aqueous dispersion of composite particles based on at least two chemically different materials in the form of particles, particles of the first material bear positive surface charge and those of the second one negative surface charge. First material particles are held associated with the second material particles owing to interaction of charges. Method is distinguished by that materials of particles are selected from the group including: titanium dioxide pigments, lead pigments, silicates, aluminates, carbonates, clays, and polymer particles prepared from polymers such as polystyrene, polyacrylate, styrene/acrylate copolymer, volume ratio of the first to second material particles ranging from 0.05:1 to 3:1. EFFECT: material with excellent light scattering characteristics prepared in which flocculation of particles is reduced. 21 cl, 6 tbl, 8 ex