.alpha.,.omega.-Diarylpolyene photosensitizers for sulfonylazide polymers
US3947337A · kind A · utility
3Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1974 |
| Grant date | Mar 30, 1976 |
| Priority date | — |
| Expiry date | Dec 23, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/031
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A novel class of compounds is disclosed of the formula ##SPC1## Wherein R.sub.1 and R.sub.2 are lower-alkoxy or di(lower-alkyl)amino and R.sub.1 can be hydrogen and R.sub.3 and R.sub.4 are hydrogen, lower-alkoxy or di(lower-alkyl)amino and n is an integer from 1 to 5. The compounds are sensitizers for photosensitive compounds particularly polymers containing sulfonazido groups as the light-sensitive moiety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.