Elimination of defects in cysteine-sensitized emulsions
US4514492A · kind A · utility
8Cited by
7References
9Claims
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Key dates
| Filing date | Dec 15, 1983 |
| Grant date | Apr 30, 1985 |
| Priority date | — |
| Expiry date | Dec 15, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/136
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Desensitization defects due to nonferrous metal contamination of a silver halide film sensitized by a cysteine-thiazolidine moiety are decreased by incorporating a chelating agent such as quinaldic or picolinic acid into one or more layers of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.