Novel xanthene dye developers
US4264507A · kind A · utility
9Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1980 |
| Grant date | Apr 28, 1981 |
| Priority date | — |
| Expiry date | Apr 24, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B11/24
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel xanthene dye developer compounds which include three or four silver halide developing groups are disclosed. Also described are photographic products and processes utilizing the dye developers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.