Silver halide color photographic material
US5300419A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1992 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | May 27, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3006
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a silver halide color photographic material containing at least one cyan dye forming coupler of the following general formula (C-1) and at least one compound of the following general formula (I) in the same layer of the material: ##STR1## where R.sub.0 represents an alkyl group, an alkenyl group, an aryl group, or a heterocyclic group; PA1 X represents a hydrogen atom, or a group capable of being split off by a coupling reaction with the oxidation product of an aromatic primary amine color developing agent; and PA1 Ar represents an aromatic group; ##STR2## where R.sub.1, R.sub.2 and R.sub.3 each represent an aliphatic group, an aryl group, or a heterocyclic group; PA1 R.sub.4 represents a hydrogen atom, an aliphatic group, an aryl group, or a heterocyclic group; PA1 R.sub.1 and R.sub.2, or R.sub.3 and R.sub.4 may be bonded to each other to form a 5-membered to 8-membered ring along with the nitrogen atom in the formula; PA1 the compound of formula (I) may form a dimer or a higher polymer at the position of R.sub.1, R.sub.2, R.sub.3 or R.sub.4 ; provided that R.sub.1 and R.sub.3, or R.sub.2 and R.sub.4 are not bonded to each other to form a ring, and that the sum of the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.