Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1997-07-09
1998-05-26
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...
430216, 430227, 430233, 430240, 430244, 430248, 430249, 430456, 430488, 430489, 430490, 430491, G03C 832, G03C 836, G03C 5305, G03C 538
Patent
active
057562539
ABSTRACT:
There are described novel photographic processing compositions, film units and processes for use in diffusion transfer photographic systems. More particularly, there is described a method for forming a diffusion transfer image photographic processing of diffusion transfer photographic film units in the presence of hypoxanthine and inosine. Diffusion transfer photographic systems utilizing the novel photographic element or method of the present invention exhibit substantially fewer, if any, crystals on the final image of the finished photograph post-processing.
REFERENCES:
patent: 4168166 (1979-09-01), Land
patent: 4324853 (1982-04-01), Berger
patent: 4503139 (1985-03-01), Bartels-Keith et al.
patent: 4565774 (1986-01-01), Kajiwata et al.
Eckert Robert D.
Filosa Michael P.
Gomes Gerard
Layne Anthony R.
Schwarz Marlene C.
Kispert Jennifer A.
Polaroid Corporation
Schilling Richard L.
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