Photoresponsive devices containing polyvinylsilicate coatings
US4423131A · kind A · utility
10Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1982 |
| Grant date | Dec 27, 1983 |
| Priority date | — |
| Expiry date | May 3, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/162
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention is directed to an improved photoresponsive device containing as a protectant overcoating a top layer of a crosslinked polyvinylsilicate resulting from the reaction of polysilicic acid with a polyvinyl alcohol having a number average molecular weight of from about 10,000 to about 100,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.