PARTICLE OF TITANIUM DIOXIDE PIGMENT WITH DENSE DOPED LAYER OF SILICON DIOXIDE (SiO) (VERSIONS), METHOD OF MAKING PARTICLES WITH DENSE DOPED LAYER OF SiO (VERSIONS) AND METHOD OF PRODUCING PAINTS, LACQUERS AND PAPER USING SAID PARTICLES AND STARTING MATERIAL WHEN MAKING PAPER OR COATING BASED ON SAID PARTICLES Russian patent published in 2013 - IPC C09C1/36 C09C3/06 D21H17/69 D21H19/38 C01G23/47 

FIELD: chemistry.

SUBSTANCE: dense layer of silicon dioxide is deposited on the surface of titanium dioxide particles from a gas phase, said silicon dioxide layer being doped with at least one doping element selected from a group which includes Sn, Sb, In, Y, Zn, F, Mn, Cu, Mo, Cd, Ce, W and Bi or mixtures thereof. A dense layer of silicon dioxide can be deposited on the surface of titanium dioxide from a liquid phase, said silicon dioxide layer being doped with at least one doping element selected from a group which includes Sb, In, Ge, Y, Nb, F, Mo, Ce, W and Bi or mixtures thereof.

EFFECT: invention increases photostability of titanium dioxide pigment particles.

27 cl, 18 dwg