METHOD FOR TITANIUM DIOXIDE TREATMENT AND PIGMENT THEREOF Russian patent published in 2009 - IPC C09C1/36 

Abstract RU 2367673 C2

FIELD: chemistry.

SUBSTANCE: for titanium dioxide treatment at first the basic material in the form of titanium dioxide water suspension is prepared at pH value equal or less than 3 or at pH value equal or more than 10, then water-soluble tin and zirconium compounds are added as well as water-soluble tin and zirconium compounds are added as well as water-soluble compounds of at least one additional element selected from the group including aluminium, silicon and titanium at pH equal or less than 3 or equal or more than 10, then obtained mixture is brought to pH in the range from 6 to 8. The pigment obtained with this method is claimed as well as its application in paints, varnishes and plastics compositions.

EFFECT: enhanced photostability of pigment based on titanium dioxide while keeping its optical properties.

17 cl, 3 ex

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RU 2 367 673 C2

Authors

Bljumel' Zigfrid

Drjus-Nikoleh Lidija

Dates

2009-09-20Published

2005-07-08Filed