Glass or quartz articles having high temperature UV absorbing coatings containing ceria
US5316854A · kind A · utility
21Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1991 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Dec 6, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.