Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Imagewise heating – element or image receiving layers...
Patent
1993-05-06
1994-08-23
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Imagewise heating, element or image receiving layers...
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.
Chinoporos Efthimios
Pauze Robert H.
Waller David P.
Whritenour David C.
Black Edward W.
Loeschorn Carol A.
Polaroid Corporation
Schilling Richard L.
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