METHOD OF PREPARING ORGANOMINERAL PIGMENTS Russian patent published in 2001 - IPC

FIELD: preparation of composite materials, particularly, manufacture of paints, enamels, colored cements and concretes, coloring of plastic bodies. SUBSTANCE: filler is mixed with organic pigment at weight ratio of 99.5-98.0: 0.5-2.0, respectively, and treated with vibrocentrifugal mill containing 60-70% of spherical filling, and inorganic pigment is then added to the resulting mixture in amount of 25-35 wt.% of the resulting mixture, and mixture is treated in vibrocentrifugal mill containing 45-65% of spherical filling. EFFECT: improved hiding power, disperse ability and coloring power of the organomineral pigments. 3 ex