Photographic products and processes employing novel nondiffusibl

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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260146R, C09B 4500, C09B 2922, C09B 2936, C09B 3114

Patent

active

043671748

ABSTRACT:
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable, pyridylazo(dialkylamino)phenol magenta dye moiety or precursor thereof, having the formula: ##STR1## wherein: (a) R represents hydrogen, a hydrolyzable moiety, or may be taken together with the NHSO.sub.2 group to which it is attached to form 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.
patent: 4195992 (1980-04-01), Stolzenburg et al.

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