Process for the preparation of composite pigments

Details Process for the preparation of composite pigments Process for the preparation of composite pigments

1993-04-07

1996-10-08

Group, Karl

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106415, 106417, 106493, 106494, C09C 162

Patent

active

055627633

ABSTRACT:
The invention relates to a process for the preparation of composite pigments containing a substrate having an average diameter of 3-200 .mu.m as support for small organic or inorganic pigment particles having an average diameter of less than 1 .mu.m, characterized in that the pigment particles are applied by spray-drying an aqueous suspension containing the substrates and the pigment particles without addition of additives.

REFERENCES:
patent: 4344987 (1982-08-01), Ostertag et al.
patent: 4435220 (1984-03-01), Watanabe et al.
patent: 4741780 (1988-05-01), Atkinson
patent: 4772331 (1988-09-01), Noguchi et al.
patent: 4909852 (1990-03-01), Atkinson
patent: 5061317 (1991-10-01), Korpi et al.
patent: 5078793 (1992-01-01), Caton
patent: 5165915 (1992-11-01), Tokubo et al.

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