Silver halide photographic light-sensitive material, photographic emulsion, and mercapto group-containing polymer compound used for them
US7439309B2 · kind B2 · utility
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8References
18Claims
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Key dates
| Filing date | Mar 22, 2005 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Nov 30, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/40
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a silver halide photographic light-sensitive material, which has at least one polymer compound having a nitrogen-containing aromatic ring having a mercapto group represented by the formula Z-SH wherein Z represents a nitrogen-containing aromatic ring as a partial structure. This silver halide photographic light-sensitive material can stably contain silver halide grains of a high aspect ratio showing high sensitivity and superior planarity, shows superior pressure resistance and can be stably prepared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.