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Application filed by Photo Produits Gevaert S AfiledCriticalPhoto Produits Gevaert S A
Publication of CH285493ApublicationCriticalpatent/CH285493A/fr
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
G03C7/32—Colour coupling substances
G03C7/36—Couplers containing compounds with active methylene groups
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
(AREA)
CH285493D1947-12-031948-12-02Procédé pour la production d'images photographiques en couleurs par développement chromogène.
CH285493A
(fr)