Photothermographic, composition using a phenolic leuco dye as a

Details Photothermographic, composition using a phenolic leuco dye as a Photothermographic, composition using a phenolic leuco dye as a

1974-07-12

1976-10-12

Klein, David

Gas separation: apparatus

Solid sorbent apparatus

With control means responsive to sensed condition

96 29R, 96 77, 96100, G03C 102, G03C 140, G03C 504

Patent

active

039855651

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) a silver salt of a long-chain fatty acid and (c) a phenolic leuco dye reducing agent for the silver salt of a long-chain fatty acid provides an image in color. After imagewise exposure of the photothermographic element or composition, a color image can be obtained by heating the photothermographic element or composition containing this combination. This combination can be in a diffusion transfer, photothermographic element.

REFERENCES:
patent: 2324832 (1943-07-01), Frolich et al.
patent: 2772163 (1956-11-01), Tong
patent: 3761270 (1973-09-01), DE Mauriac et al.
patent: 3816132 (1974-06-01), Takegawa et al.
Color: Theory and Imaging Systems, Society of Photographic Scientists and Engineers, 1973, pp. 216-217.

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