Nacreous pigments, their preparation and use

Details Nacreous pigments, their preparation and use Nacreous pigments, their preparation and use

1982-12-27

1985-01-22

Kaplan, G. L.

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106309, 427219, C09C 300

Patent

active

044949936

ABSTRACT:
Nacreous pigments having improved transparency and tinctorial strength and based on mica flakes coated with metal oxides, have a metal oxide layer which is formed as a homogeneous mixed layer in which, in addition to titanium dioxide, there also is present silicon dioxide and aluminum oxide. These can be produced by coating mica in an aqueous suspension with a titanium dioxide hydrate layer and then washing, drying and calcining. Silicon dioxide and aluminum hydroxide are precipitated as a uniform layer together with the titanium dioxide hydrate. The new pigments can be used for pigmenting plastics, lacquers, paints and cosmetics, inter alia.

REFERENCES:
patent: 3087828 (1963-04-01), Linton
patent: 3087829 (1963-04-01), Linton
patent: 3342617 (1967-09-01), Jackson
patent: 3650790 (1972-03-01), Klenke et al.
patent: 3711308 (1973-01-01), Brand et al.
patent: 3832208 (1974-07-01), Jackson
patent: 3926659 (1975-12-01), Bernhard et al.
patent: 4134776 (1979-01-01), Rieger et al.

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