Composite pigments and process for their preparation

Details Composite pigments and process for their preparation Composite pigments and process for their preparation

C - Chemistry, Metallurgy

09

C

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C09C 1/64 (2006.01) C01F 7/02 (2006.01) C01G 23/047 (2006.01) C09B 25/00 (2006.01) C09B 29/00 (2006.01) C09B 29/01 (2006.01) C09B 29/15 (2006.01) C09B 29/36 (2006.01) C09B 63/00 (2006.01) C09B 67/22 (2006.01) C09C 1/00 (2006.01)

Patent

CA 1189654

A B S T R A C T There are described composite ternary organic-inorganic pigments, substantially consisting of a binary inorganic titanium dioxide/aluminium hydroxide component, in an amount of from 70% to 95% by weight, the remaining organic component in an amount of from 5% to 30% by weight consisting of an organic dye selected from azoic and quinophthalonic compounds containing in their structure at least one carboxylic and/or sulphonic, substantially salified, acid function. There is also described a process for the preparation of such pigments. Such pigments may suitably find application in varnish- ing products, air hardening and stove-baked enamels, in the pigmentation of plastics materials, in inks, and in the printing of fabrics, using conventional techniques.

422049

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