Coloured photographic products are obtained by dissolving a coloured coupling agent (I) in an emulsion of polymers (II), adjusting the pH to 3-8 and then adding

Coloured photographic products are obtained by dissolving a coloured coupling agent (I) in an emulsion of polymers (II), adjusting the pH to 3-8 and then adding an emulsion (gelatine-based) of silver halide. (I) are acylacetanilides, benzoylacetanilides. (II) is styrene/butadiene copolymer (20-60 :...

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Hauptverfasser:	ERHARD WOLF, ROLAND HECKEL, SIEGFRIED PAHL, HUBERTUS PIETRZOK,DR, HEINZ NEBE,.DR, UEBERMUTH,ROBERT, DETLEF KLEMM, WOLFGANG SCHINDLER,.DR, HERBERT KREIBICH
Format:	Patent
Sprache:	eng ; ger
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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Beschreibung
Zusammenfassung:	Coloured photographic products are obtained by dissolving a coloured coupling agent (I) in an emulsion of polymers (II), adjusting the pH to 3-8 and then adding an emulsion (gelatine-based) of silver halide. (I) are acylacetanilides, benzoylacetanilides. (II) is styrene/butadiene copolymer (20-60 : 80-40); acrylonitrile/butadiene (40-60 : 60-40); styrene/acrylonitrile/butadiene; vinylidene chloride copolymers, e.g., with vinyl chloride (40-60: 60-40); and mixtures of these. Improved mechanical (e.g. smoothness, decreased drying time) and photographic properties.