Ultraviolet screening composited oxide and process for producing

Details Ultraviolet screening composited oxide and process for producing Ultraviolet screening composited oxide and process for producing

1993-03-22

1995-06-13

Ore, Dale R.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

424 59, 514498, 514614, 514642, 514951, A61K 742, A61K 3128, C01G 902

Patent

active

054240557

ABSTRACT:
The composite oxide comprises, by weight, 100 parts of zinc oxide and at least one member, incorporated therein, selected from seven specific oxides in their specific amounts such as 0.001 to 5.0 parts of lanthanum oxide, 1.0 to 10.0 parts of cobalt oxide, 1.0 to 30.0 parts of titanium oxide, the composite oxide being surface treated with a silicone oil or a fatty acid to provide a surface-treated composite oxide of the present invention which has excellent ultraviolet screening capability and high visible light transmittance, these superior properties being well balanced with each other, and can maintain said superior properties over a long period of time. In one embodiment, there is provided a process for producing the ultraviolet screening surface-treated composite oxide.

REFERENCES:
patent: 5089248 (1992-02-01), Akhtar
patent: 5093099 (1992-03-01), Haishi et al.

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