Modified gelatin, and silver halide photographic emulsion and photographic light-sensitive material using the same
US6878513B2 · kind B2 · utility
1Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2001 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Feb 3, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/03
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A modified gelatin obtained by reacting (A) a gelatin and (B) a compound which contains a nitrogenous aromatic ring having a mercapto group to form covalent bond with a reactive group in the gelatin, an introduction amount of the compound in the gelatin being 1.0×10−6 mol to 2.0×10−3 mol per 100 g of the gelatin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.