Image-recording materials with cyclic 1,3-sulfur-nitrogen dye pr

Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Imagewise heating – element or image receiving layers...

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430203, 430222, 430215, G03C 554

Patent

active

053406893

ABSTRACT:
There are disclosed dye-providing compounds comprising color coupler dyes substituted on the phenylene diamine portion with one or two cyclic 1,3 -sulfur-nitrogen groups. The dye-providing compounds are capable of releasing the coupler dye upon cleavage in the presence of silver ions or a soluble silver complex. The dye-providing compounds are useful as image-forming materials in color thermographic, photothermographic and other photographic processes.

REFERENCES:
patent: 3719489 (1973-03-01), Cieciuch et al.
patent: 4053312 (1977-10-01), Fleckenstein
patent: 4060417 (1977-11-01), Cieciuch et al.
patent: 4098783 (1978-07-01), Cieciuch et al.

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