Silver halide emulsions with improved heat stability

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

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430569, 430603, 430611, G03C 109

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active

059142260

ABSTRACT:
A silver halide photographic element comprising a silver halide emulsion which is greater than 50 mole % silver chloride, said emulsion being in reactive association with a dithiolone 1-oxide compound represented by the following formula: ##STR1## wherein b is C(O), C(S), C(Se), CH.sub.2 or (CH.sub.2).sub.2, and R.sup.1 and R.sup.2 are independently H, or aliphatic, aromatic or heterocyclic groups, alkoxy groups, hydroxy groups, halogen atoms, aryloxy groups, alkylthio groups, arylthio groups, acyl groups, sulfonyl groups, acyloxy groups, carboxyl groups, cyano groups, sulfo groups, or amino groups, or R.sup.1 and R.sup.2 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system; and a sulfinate compound.

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Japanese Patent Abstract 4,019,736, Jan. 23, 1992.
OPPI Briefs, vol. 24, No. 4, pp. 488-492, (1992).

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