METHOD OF PREPARING SYNTHETIC MOTHER OR PEARL PIGMENTS BASED ON NATURAL ALUMOSILICATES Russian patent published in 1999 - IPC

FIELD: manufacture of paint materials, decorative coatings, and artificial pearls. SUBSTANCE: method comprises using natural alumosilicates (micas of different modifications, talc, and kaolin) as starting material for preparing pigment, treating them in aqueous solution of detergents containing surfactants and bleaching agents, and heat treating the resulting product from temperatures ranging from 20 to 1100 C. EFFECT: wider range of starting agents for manufacture of pigments, improved decorative properties of pigments (luster, whiteness and mother of pearl effect), and chemical resistance thereof in different film-forming agents based on aqueous and non- aqueous substrates. 3 cl, 1 tbl