Photographic silver halide material containing a ballasted elect

Details Photographic silver halide material containing a ballasted elect Photographic silver halide material containing a ballasted elect

1984-02-21

1985-08-27

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...

430440, 430443, 430505, 430539, 430566, 430959, 430955, 260936, 568 12, G03C 554, G03C 142, G03C 530, C07F 902

Patent

active

045378533

ABSTRACT:
Photographic silver halide material containing a ballasted electron-donor precursor compound yielding by alkaline hydrolysis an electron-donor compound (ED-compound) capable (1) of donating electrons to an oxidized electron-accepting silver halide developing agent e.g. for scavenging it, said electron-donor precursor compound corresponding to the following general formula: ##STR1## wherein: R represents hydrogen or a substituent, e.g. an acyl group, which on hydrolytic removal allows the replacement of R by H,

REFERENCES:
patent: 2953591 (1960-09-01), Garner
patent: 4366240 (1982-12-01), Lassig et al.
patent: 4371604 (1983-02-01), Van de Sande et al.
patent: 4477554 (1984-10-01), Van de Sande et al.

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