Photographic recording material comprising a dye image-forming coupler compound
US4973535A · kind A · utility
7Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1988 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Aug 12, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/39236
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention relates to a color photographic silver halide recording material containing a dye image-forming coupler compound and a sulfonamide compound which is capable of altering the spectral absorption properties of a dye formed by reaction of the coupler compound with oxidized developing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.