Heat developable color photographic light-sensitive material containing sulfonamide
US4590154A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 1985 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | May 6, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/408
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A heat developable color photographic light-sensitive material is described, comprising PA0 (1) a light-sensitive silver halide, PA0 (2) a hydrophilic binder, PA0 (3) a dye releasing compound having an ability to reduce exposed light-sensitive silver halide and capable of reacting with the exposed silver halide upon heating, thereby releasing a mobile dye, and PA0 (4) a sulfonamide compound represented by the formula EQU R.sub.0 --SO.sub.2 NH.sub.2 PA0 wherein R.sub.0 represents an alkyl group, an alkenyl group, an alkynyl group containing at least 4 carbon atoms, an aralkyl group, an aryl group or a heterocyclic ring group, provided that the heterocyclic ring group is linked to --SO.sub.2 NH.sub.2 through a carbon atom contained in the ring thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.