Photohermographic emulsions having stable color forming developers
US4782010A · kind A · utility
9Cited by
6References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1986 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Dec 29, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The use of phenazine, phenoxazine and phenothiazine color forming developers in photothermographic dry silver emulsions provides a stable imaging system under both light and dark storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.