Photographic products employing novel nondiffusible hydrazone dy

Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...

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430222, 430224, 430225, 430226, 430559, 430562, G03C 140, G03C 554

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active

045488886

ABSTRACT:
Photographic elements, diffusion transfer assemblages, coordination complexes and processes are described which employ a novel nondiffusible hydrazone compound capable of releasing at least one diffusible yellow dye or dye precursor thereof having the formula: ##STR1## wherein: (a) Z.sup.1 and Z.sup.2 each independently represents the atoms necessary to complete a 5- or 6-membered aromatic heterocyclic ring;

REFERENCES:
patent: 3628952 (1971-12-01), Puschel et al.
patent: 3736136 (1973-05-01), Danhauser et al.
patent: 3953211 (1976-04-01), Imai et al.
"Preconcentration of Trace Metal Ions by Combined Complexation-Anion Exchange Part I, Cobalt, Zinc and Cadmium with 2-(3'-Sulfobenzoyl)-Pyridine-2-Pyridylhydrazone", Anal. Chem. Acta, 81, (1976), pp. 349-360 by Going, Wesenberg and Andrejat.

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