Spectrally sensitized photographic recording material
US5472839A · kind A · utility
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2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1994 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Jun 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/29
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic recording material having a photosensitive silver halide emulsion layer which is spectrally sensitized with a sensitizing dye of one of the formulae I and II ##STR1## in which R.sup.1, R.sup.2 denote sulfoalkyl; PA1 R.sup.3 denotes alkyl; PA1 R.sup.4 denotes H, F, Cl, --CN, alkoxycarbonyl, carbamoyl; PA1 R.sup.5 denotes Cl, --CN; PA1 M.sup..sym. denotes a counter ion (cation) which is optionally necessary to balance the charge exhibits a high degree of sensitivity which is stable under warm, humid conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.