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IG Farbenindustrie AG
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IG Farbenindustrie AG
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Publication of FR844637ApublicationCriticalpatent/FR844637A/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
G03C7/3212—Couplers characterised by a group not in coupling site, e.g. ballast group, as far as the coupling rest is not specific
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FR844637D1937-10-181938-10-12Procédé de fabrication de couches d'émulsions à halogénure d'argent pour la photographie en couleurs
ExpiredFR844637A
(fr)