Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1980-04-24
1981-04-28
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...
430242, 430590, G03C 140, G03C 700, G03C 554, G03C 110
Patent
active
042647045
ABSTRACT:
Novel xanthene dye developer compounds which include three or four silver halide developing groups are disclosed. Also described are photographic products and processes utilizing the dye developers.
REFERENCES:
patent: 3022316 (1962-02-01), Bestian et al.
patent: 3687678 (1972-08-01), Riester
Venkataraman, The Chemistry of Synthetic Dyes, vol. VIII, Chapter VIII, 5/1978, pp. 331-387.
Borror Alan L.
Cincotta Louis
Feingold Michael H.
Mahoney Edmond M.
Maccarone Gaetano D.
Polaroid Corporation
Schilling Richard L.
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