Color diffusion transfer photographic material
US5665529A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1996 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Apr 3, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color diffusion transfer photographic material is described, which comprises at least one compound represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, and R.sup.1 and R.sup.2 may be linked to form a ring directly or via an oxygen atom or a nitrogen atom; R.sup.3 represents an --NHSO.sub.2 R.sub.10 group, an --SO.sub.2 NHCOR.sub.10 group, an --SO.sub.2 NHSO.sub.2 R.sub.10 group, an --NHCOR.sub.10 group or an --OH group; R.sub.10 represents an alkyl group; R.sup.4 and R.sup.5 each represents a substituent and when there are a plurality of R.sup.4 and R.sup.5, they may be the same or different; CAR represents a group which releases a dye different from the compound represented by formula (I) in diffusibility by oxidation; x and y each represents 0 or an integer of 1, 2, 3 or 4; and z represents 0 or 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.