Stock material or miscellaneous articles – Composite – Of quartz or glass
Patent
1991-12-06
1994-05-31
Robinson, Ellis P.
Stock material or miscellaneous articles
Composite
Of quartz or glass
428336, 428328, 428428, 428432, 428429, 428446, 428447, 428688, 428689, 428697, 428702, 501 64, 10628713, B32B 1706, B32B 900
Patent
active
053168542
ABSTRACT:
An ultraviolet radiation absorbing coating comprising cerium oxide in an inorganic oxide matrix formed by the hydrolysis and condensation of alkoxysilane and/or other metal alkoxide or oxide which has a higher absorbance per unit thickness of coating by virtue of its much higher concentration of colloidal particles in said matrix and a reduced tendency to craze when exposed to temperatures in excess of 1000.degree. C. and/or temperature cycling between ambient temperature and 1000.degree. C. by virtue of heating a coated article at elevated temperature between 500.degree. C. and 1100.degree. C. before cooling the coated article.
REFERENCES:
patent: 4028085 (1977-06-01), Thomas
patent: 4528212 (1985-07-01), Cairns
Basil John D.
Bihuniak Peter P.
Hunia Robert M.
Lin Chia-Cheng
PPG Industries Inc.
Robinson Ellis P.
Seidel Donna L.
Speer Timothy M.
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