Photographic recording material containing a cyan dye-forming coupler
US5008180A · kind A · utility
19Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1990 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Feb 2, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C317/44
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A photographic rocording material is disclosed which contains a phenolic cyan dye-forming coupler which has a sulfone or a modified sulfone group in the 5- position ballast moiety and a substituted acylamino group in the 2- position of the phenolic ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.