Color photographic element containing coupler useful for forming neutral silver-based image
US6416943B1 · kind B1 · utility
1Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2000 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Jan 3, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/156
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention provides a color photographic element suitable for forming both a colored dye image and a neutral silver-based image, comprising a support bearing at least one light-sensitive silver halide emulsion layer containing a coupler capable of forming a colored dye upon development, and bearing a further light-sensitive silver halide emulsion layer containing a coupler which is capable of releasing a thiovinyl group upon development that is capable of reacting to form a neutral silver-based image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.