Photohermographic emulsions having stable color forming develope

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified backing or protective layer containing

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Details

430559, 430619, 430620, 430570, 430551, 430964, 430351, G03C 140, G03C 126

Patent

active

047820101

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.

REFERENCES:
patent: 3873340 (1975-03-01), Miyazawa et al.
patent: 3985565 (1976-10-01), Gabrielsen et al.
patent: 4022617 (1977-05-01), McGuckin
patent: 4370401 (1983-01-01), Winslow et al.
patent: 4379835 (1983-04-01), Lowrey et al.
patent: 4670374 (1987-06-01), Bellus

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