Colored inorganic complex for use as a pigment and compositions

Details Colored inorganic complex for use as a pigment and compositions Colored inorganic complex for use as a pigment and compositions

1983-02-24

1984-05-15

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106299, C09C 136

Patent

active

044486081

ABSTRACT:
A colored inorganic complex of titanium, stannous and zinc oxides for use in making pigments capable of imparting for example red, yellow or green colors to plastics, paints, glasses or ceramics without reliance on toxic moieties. A wider range of colors can be obtained if the complex is used in a pigment system comprising excess oxides of titanium and zinc or stannic tin. The complex is preferably made by adding an acidified aqueous solution of ions of the metals (e.g. as metal sulphates or metal halides) to alkali so as to precipitate the oxides or oxide precursor such as hydrated oxides which are then washed and fired at over 450.degree. C. to form the complex. The colors obtained may be adjusted by the presence of traces of residual alkali metal moiety.

REFERENCES:
patent: 2253551 (1941-08-01), Booge
patent: 2280795 (1942-04-01), Cole et al.
patent: 2379019 (1945-06-01), McCord et al.
patent: 3337358 (1967-08-01), Vossen
patent: 3424551 (1969-01-01), Owen

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