Positive images in photothermographic materials containing nitro

Details Positive images in photothermographic materials containing nitro Positive images in photothermographic materials containing nitro

1977-07-11

1978-11-07

Schilling, Richard L.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 55, 96 64, 96 77, 96100N, 961141, G03C 554, G03C 700, G03C 140, G03C 102

Patent

active

041243870

ABSTRACT:
Disclosed herein are photothermogrpahic elements comprising stable free radical nitroxyl compounds. These compounds do not adversely affect the photographic properties of negative-working radiation sensitive emulsions and can be advantageously used in dry photothermographic processes to produce direct positive neutral or color images.

REFERENCES:
patent: 3322542 (1967-05-01), Ullman et al.
patent: 3589901 (1971-06-01), Lyons
patent: 3600168 (1971-08-01), Lawton
patent: 3600169 (1971-08-01), Lawton
patent: 4021240 (1977-05-01), Cerquone et al.
Chem. Abstract, 64, 1966, No. 198,876.
"Photographic Developer", Research Disclosure, No. 11611, 12/1973.

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