Photographic products and processes employing nondiffusible azo

Details Photographic products and processes employing nondiffusible azo Photographic products and processes employing nondiffusible azo

1978-04-03

1979-04-10

Schilling, Richard L.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 3, 96 73, 96 77, 96 99, G03C 140, G03C 700, G03C 554, G03C 110

Patent

active

041486439

ABSTRACT:
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable azo dye moiety. The compound has the formula: ##STR1## wherein: G is a metal chelating group (or a salt or hydrolyzable precursor thereof) or a group which together with a ##STR2## IS CAR (bonded through the oxygen); G.sup.1 is a hydroxy group (or a salt of hydrolyzable precursor thereof);

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Research Disclosure, No. 15654, Apr. 1977, pp. 22-39.

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