Photographic recording material containing a cyan dye-forming coupler
US4923791A · kind A · utility
8Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1989 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Apr 7, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/5304
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A photographic recording material is disclosed which contains a phenolic cyan dye-forming coupler which has a carbonamido group or a ureido substituted group in the 2-position of the phenolic ring, and a ballast containing acylamino group in the 5-position of the ring. The ballast moiety comprises a sulfoxide, an amide, an ester, or a ketone group or a phosphine oxide group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.