Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1989-08-17
1991-05-21
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...
430218, 430223, 430440, 430483, 430559, G03C 554, G03C 726, G03C 530
Patent
active
050174541
ABSTRACT:
A heat-developable color light sensitive material comprising a support having thereon at least a light-sensitive silver halide, a binder, a non-diffusible compound capable of releasing a diffusible dye upon reduction, an electron donor compound and an electron transfer agent, said electron transfer agent being represented by formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, each represents hydrogen, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group; R.sub.5 represents a halogen atom, a hydroxyl group, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted alkoxy group; R.sub.6, R.sub.7, R.sub.8 and R.sub.9, which may be the same or different, each represents hydrogen, a halogen atom, a hydroxyl group, a carboxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted acyl group, a substituted or unsubstituted alkoxycarbonyl group, a substituted or unsubstituted acyloxy group, a substituted or unsubstituted carbamoyl group, a substituted or unsubstituted acylamino group, a substituted or unsubstituted sulfamoyl group, a substituted or unsubstituted sulfonamido group, a substituted or unsubstituted urethane group, a substituted or unsubstituted ureido group. The heat-developable color light-sensitive material provides an image having a superior S/N ratio and improved preservability over time.
REFERENCES:
patent: 4463081 (1984-07-01), Michno
patent: 4471045 (1984-09-01), Bodem et al.
patent: 4559290 (1985-12-01), Sawada et al.
patent: 4783396 (1988-11-01), Nakamura et al.
Kawata Ken
Nakamine Takeshi
Taguchi Toshiki
Fuji Photo Film Co. , Ltd.
Schilling Richard L.
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