Photographic element having improved magenta dye light stability and process for its use

The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula I: wherein X is hydrogen or a coupling-off group; and R' is a tertiary alkyl group and R'' represents the group in which R1,...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SPARA, PAUL P, HARDER, JOHN W, BURNS, PAUL A
Format:	Patent
Sprache:	eng
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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