Photographic reagent tetrazoles
US4847383A · kind A · utility
0Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1985 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Jan 18, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are described novel photographic products and processes which utilize compounds which release a photographic reagent in the presence of alkali. The compounds include an imidazole blocking group and cleave in alkali to release the photographic reagent. Also described are novel compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.