Photographic products and processes employing novel nondiffusibl

Details Photographic products and processes employing novel nondiffusibl Photographic products and processes employing novel nondiffusibl

1982-03-05

1983-01-11

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Imaged product

Nonsilver image

260146R, C09B 4500, G03C 140

Patent

active

043682480

ABSTRACT:
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable, 2-(2-pyridylazo)-4,5-bis(tertiary amino)phenol black dye moiety or precursor thereof, such as: ##STR1## wherein: (a) R represents hydrogen, a hydrolyzable moiety or CAR;

REFERENCES:
patent: 2864813 (1958-12-01), Bossard et al.
patent: 3051697 (1962-08-01), Lewis et al.
patent: 3118871 (1964-01-01), Brody et al.
patent: 4142891 (1979-03-01), Baigrie et al.

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