Silver halide photographic material
US4731320A · kind A · utility
13Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Aug 13, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3885
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide photographic material having one or more silver halide emulsion layers formed on a support is disclosed wherein at least one of said silver halide emulsion layers contains at least one cyan coupler of formula (I) dispersed therein with the aid of a high-boiling organic solvent having a dielectric constant of not more than 6.0: ##STR1## (wherein R.sub.1 is a straight- or branched-chain alkyl group having 2 or 4 carbon atoms; X is a hydrogen atom or a group capable of leaving upon coupling reaction; and R.sub.2 is a ballast group).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.