Radiation imagery chemistry: process – composition – or product th – Dye image from radiation sensitive dye or dye former by dry... – Composition or product
Patent
1985-12-26
1988-02-16
Louie, Won H.
Radiation imagery chemistry: process, composition, or product th
Dye image from radiation sensitive dye or dye former by dry...
Composition or product
430156, 430167, 430333, 430337, G03C 728
Patent
active
047255277
ABSTRACT:
The invention relates to a photosensitive composition for direct positive color photography. The photosensitive composition comprises a binder containing a plurality of grains of a semiconductor material, each grain having adsorbed on its surface one of three different complexes of spiropyran with a metal salt, each complex being sensitive to a different wavelength of light, a cross-linkable polymer and a free radical initiator. The photographic composition provides a non-silver photographic process based on the photo-decomposition of the metal-spiropyran complex absorbed on the grains of semiconductor material.
REFERENCES:
patent: 1880572 (1932-10-01), Wendt et al.
patent: 2054390 (1936-09-01), Rust et al.
patent: 3104973 (1963-09-01), Sprague et al.
patent: 3510308 (1970-05-01), Foris et al.
patent: 3595655 (1971-07-01), Robinson et al.
patent: 3773508 (1973-11-01), Osada et al.
patent: 3871886 (1975-03-01), Robillard
patent: 4052218 (1977-10-01), Samat et al.
patent: 4343885 (1982-08-01), Reardon
patent: 4345011 (1982-08-01), Drexhage
Louie Won H.
Scully Richard L.
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