Positive imaging diffusion-transfer dry silver system using formazan dye
US5278024A · kind A · utility
1Cited by
21References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 30, 1992 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Dec 30, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/4066
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photothermographic composite structure for use in a solvent-free dye thermal positive imaging diffusion-transfer process comprising: PA0 (a) an image-receiving element comprising a polymeric dyeable image-receiving layer having a glass transition temperature in the range of 20.degree. to 200.degree. C., and PA0 (b) strippably adhered to said image-receiving element, an imageable photothermographic element comprising in at least one layer thereof a binder, a silver source material, photosensitive silver halide in catalytic proximity to said silver source material, and a formazan dye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.