Photographic material and process comprising a pyrazolotriazole moiety
US5306607A · kind A · utility
3Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1992 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Nov 4, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/156
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic element is disclosed comprising a support bearing at least one photographic silver halide emulsion layer and at least one photographic coupler comprising a pyrazolotriazole moiety (PT), the coupler having the formula ##STR1## wherein PT is a pyrazolotriazole moiety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.