Styryl-like compounds showing a color-developing and bleaching behavior with improved stability and prolonged lifetime

Styryl-like compounds showing improved stability and prolonged lifetime on repetition of the coloration and bleaching cycle and represented by the general formula in which R represents an alkyl or phenyl group, R1 and R2 independently represent a lower alkyl group, a hydroxyalkyl group, or an alkoxy...

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Bibliographische Detailangaben
Hauptverfasser:	YAMASHITA, AKIO, HAYAMI, MASAAKI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AUXILIARY PROCESSES IN PHOTOGRAPHY CHEMISTRY CINEMATOGRAPHY COLOUR PRINTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DYES ELECTROGRAPHY FREQUENCY-CHANGING HETEROCYCLIC COMPOUNDS HOLOGRAPHY LAKES LINING MACHINES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC CHEMISTRY ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS PERFORMING OPERATIONS PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS POLISHES PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING TYPEWRITERS
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