Silver halide photographic emulsions

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...

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430551, 430600, 430611, G03C 128, G03C 134

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active

042660181

ABSTRACT:
A silver halide photographic emulsion chemically sensitized by a sulfur compound of the formula: ##STR1## wherein R.sub.1 represents a 5-membered or 6-membered heterocyclic ring containing a nitrogen atom; R.sub.2 represents a hydrogen atom, a lower alkyl group, an allyl group, an aryl group, or an aralkyl group; and R.sub.3 has the same definition as R.sub.1 or R.sub.2 ; or R.sub.2 and R.sub.3 may join to form a heterocyclic ring; is disclosed.

REFERENCES:
patent: 3287137 (1966-11-01), McBride
patent: 3501313 (1970-03-01), Willems et al.
patent: 4116697 (1978-09-01), Bigelow
patent: 4140530 (1979-02-01), Trunley et al.
Rahmani, et al.: Studies on Mixed Ligand Complexes of Silver (I), J. Inorg. Nucl. Chem., Series 39, Issue 11, pp. 2089-2092, 1977.

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