Preparation of flaky mica pigments coated with metal oxides, and

Details Preparation of flaky mica pigments coated with metal oxides, and Preparation of flaky mica pigments coated with metal oxides, and

1981-07-24

1982-08-17

Silverberg, Sam

Coating processes

Particles, flakes, or granules coated or encapsulated

Solid encapsulation process utilizing an emulsion or...

427215, 106291, 106309, 106308B, C04B 3126

Patent

active

043449875

ABSTRACT:
Flaky mica pigments coated with metal oxides are prepared by oxidizing vaporizable metal carbonyls to metal oxides with oxygen at an elevated temperature in the presence of mica flakes which are kept in motion. The amount of carbonyls introduced into the reaction zone does not exceed 5% by volume of the amount of other gases introduced.
The coated mica pigments are employed as pigments in surface coatings, plastics and glasses.

REFERENCES:
patent: 3220875 (1965-11-01), Queneau
patent: 3839077 (1974-10-01), Robinson
patent: 4146403 (1979-03-01), Armanini et al.

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