Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1992-07-31
1994-05-31
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430222, G03C 554
Patent
active
053168879
ABSTRACT:
There are disclosed color-providing compounds comprising two or more cyclic 1,3 sulfur-nitrogen groups and two or more color-providing moieties, i.e., complete dyes or dye intermediates, capable of releasing the color-forming moieties upon cleavage in the presence of silver ions or a soluble silver complex. The color-providing compounds are useful as image-forming materials in color photographic processes.
REFERENCES:
patent: 3719489 (1971-06-01), Cieciuch et al.
patent: 4098783 (1978-07-01), Cieciuch et al.
patent: 4468448 (1984-08-01), Rogers
patent: 4535051 (1985-08-01), Simon et al.
Arnost Michael J.
Chinoporos Efthimios
McGowan Donald A.
Waller David P.
Loeschorn Carol A.
Polaroid Corporation
Schilling Richard L.
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