Silver halide color photographic material and discoloration inhibitor therefor
US4745050A · kind A · utility
6Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1986 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Jan 28, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/39268
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided a silver halide color photographic material containing a 6-hydroxychroman derivative in, combination with a specific coupler, i.e., a 5-pyrazolone type magenta coupler having an --SR group at the coupling position or a 5-pyrazolone type magenta coupler having an anilino group at the 3-position. The photosensitive material provides photographic images, quality of which is prevented from deteriorating as time passes. The photographic color images are free from discoloration or fading and do not form yellow stains on a white background.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.