Ultraviolet radiation absorbing coating
US5328975A · kind A · utility
52Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1993 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Apr 2, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D183/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An organoalkoxysilane/metal oxide sol-gel composition and method for its production are disclosed whereby an organoalkoxysilane of the general formula EQU R.sub.x Si(OR').sub.4-x wherein R is an organic radical, R' is a low molecular weight alkyl radical, and x is less than 4 and may be zero, is partially hydrolyzed in organic solution and reacted with a titanium alkoxide of the general formula Ti(OR'').sub.4 wherein R'' is a lower alkyl radical. The composition is hydrolyzed, dried and heat treated to form a silicon oxide/titanium oxide abrasion-resistant coating on a substrate with high ultraviolet radiation absorbance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.