Photographisches Hochkontrastelement, das ein eine Alkylpyridiniumgruppe enthaltendes Arylsulphonamidophenylhydrazid einschliesst

Photographisches Hochkontrastelement, das ein eine Alkylpyridiniumgruppe enthaltendes Arylsulphonamidophenylhydrazid einschliesst

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: 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 R...

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Bibliographische Detailangaben
Hauptverfasser: KERR, DONALD LAURENS, LOOKER, JEROME JORDAN
Format: Patent
Sprache:ger
Schlagworte:
AUXILIARY PROCESSES IN PHOTOGRAPHY
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
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Zusammenfassung: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: 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 R is hydrogen or a blocking group.