Silver halide color photographic light-sensitive material, pyrrolotriazole compound and dye-forming compound
US6649771B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Mar 26, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Mar 26, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/03517
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pyrrolotriazole compound of the following formula (I), and a silver halide color photographic light-sensitive material containing the pyrrolotriazole compound as a cyan coupler: wherein R1 and R2 each independently are an alkyl, cycloalkyl, alkenyl, aryl or heterocyclic group, provided that R1 and R2 may bond together to form a 5- or 6-membered nitrogen-containing heterocycle; R3 is an alkyl, cycloalkyl, alkenyl, aryl or heterocyclic group; R4 is an alkyl, cycloalkyl, alkenyl, alkoxy or amino group; R5 is a hydrogen atom, an alkyl or aryl group; R6 is an alkyl, cycloalkyl or alkenyl group; and X is an oxygen or sulfur atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.