Compositions: coating or plastic – Coating or plastic compositions – Carbohydrate or derivative containing
Patent
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.
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Bernhard Horst
Esselborn Reiner
Kaplan G. L.
Merck Patent Gesellschaft mit beschrankter Haftung
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