Photographic material containing a novel hydrazide type
US6361920B1 · kind B1 · utility
3Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Sep 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/061
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A high contrast silver halide photographic material is disclosed containing a new type of hydrazide compound represented by following general formula I, the different symbols of which are defined in the description. The photographic material is preferably a graphic arts material for pre-press applications. High gradation and excellent dot quality, exposure latitude and stability on continuous processing are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.