Carbon black-containing pigments and process for their preparati

Details Carbon black-containing pigments and process for their preparati Carbon black-containing pigments and process for their preparati

1976-12-10

1978-02-28

Douglas, Winston A.

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106307, 106300, 106308B, 106DIG3, 427218, 428363, 428403, C09C 100

Patent

active

040765512

ABSTRACT:
A process for the preparation of carbon black-containing pigments consists essentially of precipitation of a carbon black-containing metal hydroxide or bismuth oxychloride layer on substrate particles in an aqueous suspension containing carbon black particles of particle size of below 1 mn. and washing, drying and optionally calcining the products. Flaky substrates, e.g., mica flakes coated with TiO.sub.2, are preferably employed. Carbon black-containing pigments obtained have carbon black particles incorporated in a metal hydroxide, metal oxide or bismuth oxychloride layer precipitated on the substrate in the presence of the carbon black.

REFERENCES:
patent: 3087827 (1963-04-01), Klenke et al.
patent: 3107173 (1963-10-01), Klenke

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