Radiation sensitive compositions containing pyrylium compounds
US4173473A · kind A · utility
10Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1977 |
| Grant date | Nov 6, 1979 |
| Priority date | — |
| Expiry date | Jul 6, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Pyrylium, thiapyrylium and selenapyrylium salts and derivatives thereof having a trimethine linkage containing an aryl substituent attached to at least one carbon atom of the trimethine linkage are disclosed. Radiation sensitive compositions, e.g., photoconductive compositions, containing such materials are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.