Compositions comprising inorganic particles

Details Compositions comprising inorganic particles Compositions comprising inorganic particles

C - Chemistry, Metallurgy

09

C

6/194, 117/46.1

C09C 3/00 (2006.01) C03C 1/04 (2006.01) C09C 1/02 (2006.01) C09C 1/62 (2006.01) C09D 7/12 (2006.01) C09D 11/02 (2006.01) C09D 17/00 (2006.01)

Patent

CA 1198556

ABSTRACT Floccular compositions comprising ultrafine inorganic particles having maximum particle dimensions of from 0.5 to 3000 (preferably 2 to 1500) nm combined with a size-stabiliser which is a lyophobic substance with lyophilic activity on its surface and also comprising a polyelectrolyte flocculating agent attached to the combination. The size-stabiliser protects the ultrafine particles against agglomeration during formation of the flocculates and the mixing of flocculates into various materials such as plastics, inks, paint or refractory materials. Also a method for making the flocculates from colloidal dispersions of particles, size-stabilisers and flocculating agents. The flocculates are particularly useful with particles of metals of the coinage and transition groups for making transparent colouring agents. Also materials containing the ultrafine particles.

427844

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