Inorganic pigments and process for preparing same

Details Inorganic pigments and process for preparing same Inorganic pigments and process for preparing same

1977-07-18

1978-06-27

Douglas, Winston A.

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106300, 106306, 106288B, 423593, 423598, 423600, C09C 136

Patent

active

040973000

ABSTRACT:
The present invention relates to new inorganic pigments and to a process for preparing same. More particularly, it relates to new yellowish-green pigments consisting of titanium compounds. These pigments consist of the crystalline phases rutile TiO.sub.2, perovskite CaCO.sub.3 and trigonal CoTiO.sub.3. They contain 2 to 12% by weight of cobalt and 4 to 20% by weight of calcium based on total TiO.sub.2 and they have a dominant wave length .lambda..sub.D comprised between 530 and 560 m.mu..

REFERENCES:
patent: 2992931 (1961-07-01), Merker
patent: 3424551 (1969-01-01), Owen
patent: 3876441 (1975-04-01), Broll et al.

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