Photothermographic and thermographic compositions and uses there

Details Photothermographic and thermographic compositions and uses there Photothermographic and thermographic compositions and uses there

1975-12-22

1977-05-03

Klein, David

Gas separation: apparatus

Electric field separation apparatus

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

96 55, 96 562, 96 563, 96 564, 96 565, 96 566, 96 77, 96100, 961141, 250316, 2521883R, 427 56, G03C 554, G03C 140, G03C 700, G03C 102

Patent

active

040212408

ABSTRACT:
In a photothermographic element, composition or process for producing developed images employing processing with heat, a combination comprising (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) a silver salt oxidizing agent and (ii) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-sulfonamidophenol such as the corresponding benzenesulfonamidophenol, and (c) a four equivalent color-forming coupler, and (d) a polymeric binder, provides an image in color. After imagewise exposure of the photothermographic element or composition, a color image can be developed by heating the photothermographic element or composition containing this combination. The combination can be in a diffusion transfer, photothermographic element.

REFERENCES:
patent: 3094417 (1963-06-01), Workman
patent: 3152094 (1964-10-01), Sorensen et al.
patent: 3301678 (1967-01-01), Humphlett et al.
patent: 3392020 (1968-07-01), Yutzy et al.
patent: 3457075 (1969-07-01), Morgan et al.
patent: 3531286 (1970-09-01), Renfrew
patent: 3592650 (1971-07-01), De Selms et al.
patent: 3592652 (1971-07-01), Bard
patent: 3737316 (1973-06-01), Salminen et al.
patent: 3751249 (1973-08-01), Hiller
patent: 3761270 (1973-09-01), DE Maurlac et al.
patent: 3796574 (1974-03-01), Figueras
patent: 3801321 (1974-04-01), Evans et al.
patent: 3813244 (1974-05-01), Villard
Translation of German Patent 888,045, Translated 2/1961.
"Sulfonamedoaniline Developing Agents," Research Disclosures No. 9915, 7/1972, p. 51.
"Photothermographic Element, Composition and Process," Research Disclosure No. 10513, 1/1973, p. 16.

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