Silver halide color photographic lightsensitive material and compound used therein
US6492100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Aug 8, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide color photographic lightsensitive material comprising at least one photosensitive silver halide emulsion layer on a support, wherein the emulsion layer contains a magenta coupler represented by formula (M-1) below: wherein R1 represents a substituted or nonsubstituted alkyl group, each of L1 and L2 independently represents a substituted or nonsubstituted alkylene group, or substituted or nonsubstituted arylene group, in —L3—G, L3 represents —NH—SO2— or —SO2—NH—CO— (in these representations, bonding direction is not defined) and G represents a substituted or nonsubstituted alkyl group or substituted or nonsubstituted aryl group, alternatively —L3—G represents —COOH or OH, X represents a hydrogen atom or a group which splits off when coupling with an oxidized form of a developing agent, n represents 1 or 2, when L2 is an alkylene group, or n represents an integer from 1 to 5, when L2 is an arylene group, and a plurality of —L3—G's can be the same or different, when n is 2 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.