TITANIUM DIOXIDE COLOR PIGMENTS

Brand	Owner	Address	Description
RHODITAN	RHONE-POULENC CHIMIE	25 QUAI PAUL DOUMER 92400 COURBEVOIE France	titanium dioxide color pigments;chemical compositions, namely, titanium dioxides and derivatives thereof for use in the manufacture of architectural and industrial coatings;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

An improved process is described for manufacturing zirconia-treated titanium dioxide pigments, wherein the zirconia treatment is accomplished in the process of fluidizing a titanium dioxide filter or press cake and then drying the same, through the addition to the filter or press cake of one or more alkaline water-soluble zirconium reagents selected from ammonium zirconyl carbonate, the water-soluble ammonium zirconyl carboxylates and mixtures of these. Aqueous solutions of such zirconium reagents, in addition to being effective for imparting a zirconia surface treatment to the titanium dioxide materials, also prove to be effective fluidizing agents for forming high solids dispersions of the zirconia-treated titanium dioxide pigment materials which can be spray dried without substantial dilution and excessive energy requirements.