Polyimide optical material
US5449741A · kind A · utility
5Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1993 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Oct 25, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1071
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A polyimide optical material, composed of a perfluorinated polyimide having a perfluorinated repeating unit represented by general formula (1) ##STR1## wherein R.sub.1 is a tetravalent perfluorinated organic group; and R.sub.2 is a divalent perfluorinated organic group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.