Process for the preparation of opaque organic pigments

Details Process for the preparation of opaque organic pigments Process for the preparation of opaque organic pigments

1976-05-10

1978-05-16

Douglas, Winston A.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106288Q, C08J 300

Patent

active

040897001

ABSTRACT:
Organic pigments which provide an opaque color impression in binders and exhibit adequate flow properties in binders are obtained from pigments which provide a transparent color impression in binders in a simple way in that an azeotrope-forming agent which is appropriate for the liquid adhering to the pigment is added to the moist pigment obtained after the preparation, and the azeotropic mixture and any excess solvent which may be present are then distilled off.

REFERENCES:
patent: 2268144 (1941-12-01), Vesce
patent: 3119706 (1964-01-01), Bachman
patent: 3671281 (1972-06-01), Doss

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