Photographic products and processes and novel compounds
US4503139A · kind A · utility
6Cited by
10References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1983 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | May 9, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/161
- 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.