High contrast photographic element including an aryl...

Details High contrast photographic element including an aryl... High contrast photographic element including an aryl...

G - Physics

03

C

96/139

G03C 1/10 (2006.01) G03C 1/06 (2006.01)

Patent

CA 2039565

ABSTRACT Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: Image where each R is an alkyl group, n is 1 to 3, X is an anion, m is 1 to 6, Y is a divalent aromatic radical, and R1 is hydrogen or a blocking group.

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