Photographic material and process comprising a pyrazolotriazole coupler

Photographic material and process comprising a pyrazolotriazole coupler

Novel 1H-pyrazolo[1,5-b]1,2,4 triazole couplers containing in the 6- position an unsubstituted or substituted multicyclic hydrocarbon group, eg an adamantyl group, in a photographic material and process enable dye images that exhibit improved light stability. These couplers are useful in photographi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TANG, PING WAH, COWAN, STANLEY, KRISHNAMARTHY, SUNDARAM
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
AUXILIARY PROCESSES IN PHOTOGRAPHY
CHEMISTRY
CINEMATOGRAPHY
ELECTROGRAPHY
HETEROCYCLIC COMPOUNDS
HOLOGRAPHY
METALLURGY
ORGANIC CHEMISTRY
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
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Beschreibung
Zusammenfassung:Novel 1H-pyrazolo[1,5-b]1,2,4 triazole couplers containing in the 6- position an unsubstituted or substituted multicyclic hydrocarbon group, eg an adamantyl group, in a photographic material and process enable dye images that exhibit improved light stability. These couplers are useful in photographic materials and processes.