Hydrazide compositions, methods employing them and photographic

Details Hydrazide compositions, methods employing them and photographic Hydrazide compositions, methods employing them and photographic

1982-09-01

1983-11-22

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...

430410, 430559, 430598, G03C 554, G03C 140, G03C 128, G03C 524

Patent

active

044169698

ABSTRACT:
A nucleating agent composition is described comprising a triazole substituted phenylhydrazide and an thiourea substituted phenylhydrazide wherein the molar ratio of the triazole substituted phenylhydrazide to the thiourea substituted phenylhydrazide is between 1:20 and 20:1. The described composition is useful in photographic emulsions, processing compositions and elements and provides excellent nucleation at low concentrations under a variety of processing conditions.

REFERENCES:
patent: 2419975 (1947-05-01), Trivelli et al.
patent: 3615615 (1971-10-01), Heseltine et al.
patent: 3719494 (1973-03-01), Kurtz et al.
patent: 3734738 (1973-05-01), Kurtz et al.
patent: 3759901 (1973-09-01), Lincoln et al.
patent: 4030925 (1977-06-01), Leone et al.
patent: 4031127 (1977-06-01), Leone et al.
patent: 4080207 (1978-03-01), Leone et al.
patent: 4115122 (1978-09-01), Adachi et al.
patent: 4139389 (1979-02-01), von Konig et al.
patent: 4276364 (1981-06-01), Leone
patent: 4278748 (1981-07-01), Sidhu et al.
Research Disclosure, vol. 151, Nov. 1976, Item 15162.
Research Disclosure, vol. 176, Dec. 1978, Item 17626.

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