Photographic element containing an acylacetanilide DIR coupler
US6087082A · kind A · utility
1Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Dec 11, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/158
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention comprises a photographic element, comprising a support bearing at least one silver halide emulsion and at least one acylacetanilide yellow dye-forming DIR coupler of structure I, below: ##STR1## wherein: R.sub.1 is a t-alkyl group or a phenyl group; PA1 R.sub.2 is an alkyl group or a phenyl group; PA1 X is a halogen atom or an alkyl or alkoxy group; and PA1 R.sub.3 is an alkyl group with 3 to 10 carbon atoms or a phenyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.