Platelet-shaped pigments

C - Chemistry – Metallurgy – 09 – C

Patent

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Details

C09C 1/00 (2006.01)

Patent

CA 2512892

The present invention relates to platelet-shaped pigments comprising (a) a layer obtained by calcination of a layer comprising SiOZ wherein 0.03 <= z <= 2.0 and a metal, to a process for the production thereof, and to the use thereof in paints, textiles, ink-jet printing, cosmetics, coating compositions, plastics, printing inks and in glazes for ceramics and glass. The aforementioned process makes available platelet-~shaped pigments having a high degree of planeparallelism and a defined thickness in the range of .plusmn.10 %, preferably .plusmn. 5 %, of the average thickness.

L'invention concerne des pigments sous forme de lamelles comprenant (a) une couche obtenue par calcination d'une couche comprenant SiO<SB>Z</SB>, dans laquelle 0.03 = z = 2.0, et un métal. L'invention concerne également un procédé pour produire ledit pigment, ainsi que son utilisation pour des peintures, des textiles, des impressions jets d'encre, des cosmétiques, des compositions de revêtement, du plastique, des encres d'impression et des glacis pour la céramique et le verre. Le procédé de l'invention permet de produire des pigments sous forme de lamelles présentant un degré élevé de parallélisme au plan et une épaisseur définie de l'ordre de ? 10 %, de préférence ? 5 % de l'épaisseur moyenne.

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