Dye forming coupler and silver halide color photographic material containing the same and method for forming color image
US5164289A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1991 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | May 7, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3825
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide photographic material containing at least one dye forming coupler represented by formula (I): ##STR1## wherein R.sub.0 represents a hydrogten atom or a substituent; R.sub.1 and R.sub.3 each represents a substituent; R.sub.2 represents an electron attracting group; X represents a hydrogen atom or a group releasable on coupling with an oxidation product of an aromatic primary amine derivative, and a silver halide photographic material containing the same are disclosed. The coupler of formula (I) exhibits excellent coupling activity and provides a dye which has a sharp absorption spectrum with no side absorption in the blue and green light regions and exhibits stability to light, heat and moisture and improved color reproducibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.