Silver halide photographic light-sensitive materials
US4323643A · kind A · utility
36Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1980 |
| Grant date | Apr 6, 1982 |
| Priority date | — |
| Expiry date | Nov 6, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/15
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide photographic light-sensitive material is described, comprising at least one silver halide photographic emulsion layer, wherein at least one layer contains a compound represented by formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represents hydrogen, an aliphatic group, an aromatic group, or a heterocyclic group; PA1 R.sup.3 represents hydrogen or an aliphatic group, and PA1 X represents a divalent aromatic group. The light-sensitive material provides high-contrast negative images and good dot image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.