Method for conditioning titanium dioxide pigments

Details Method for conditioning titanium dioxide pigments Method for conditioning titanium dioxide pigments

C - Chemistry, Metallurgy

09

C

C09C 1/36 (2006.01) C09D 5/02 (2006.01) C09D 7/02 (2006.01) C09D 7/12 (2006.01) C09D 7/14 (2006.01) C09D 17/00 (2006.01)

Patent

CA 2451007

This invention relates to a process for preparing conditioned titanium dioxide pigments comprising (a) during pigment manufacture, admixing the following components to form a conditioned pigment: (1) a crude titanium dioxide pigment material; (2) at least about 0.1% by weight, relative to the inorganic pigment, of one or more copolymer dispersants; and (3) an optional processing liquid (preferably water); and, (b) isolating the conditioned pigment as dry powder.

L'invention se rapporte à un procédé de préparation de pigments de dioxyde de titane conditionnés consistant à : (a) mélanger, lors de la production des pigments, les composants suivants pour former un pigment conditionné: (1) un pigment de dioxyde de titane brut; (2) au moins environ 0,1 % en poids, par rapport au pigment inorganique, d'un ou de plusieurs agents dispersants copolymères; et (3) un liquide de traitement éventuel (de préférence de l'eau); et, (b) isoler le pigment conditionné sous forme de poudre sèche.

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