Colour couplers and their production and use in colour photography

The invention comprises colour couplers of the formula: where A is the trivalent radical: D is a direct linkage or the divalent radical: in which X is -S- or -CONH-, R is a hydrocarbon group and B is a colour coupler residue such that the compound: is a compound which will react with the oxidati...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	GREENHALGH COLIN WILLIAM
Format:	Patent
Sprache:	eng
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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