COLOR DEVELOPER COMPOSITION

A new colour developer compsn. comprises phenolic material (a), an aromatic carboxylate component (b) and divalent Zn where: (a) is a colour developer contg. min. 3.4 (pref. min. 20.4) wt% phenolic gp; (b) is carboxylic acid(s) with free acid log Kow at least 2.9 (pref. at least 3.8) (Kow = octanol/...

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Bibliographische Detailangaben
Hauptverfasser:	KENNETH D. GLANZ, ROBERT E. MILLER, TIMOTHY J. BAHOWICK, STEVEN L. VERVACKE
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AUXILIARY PROCESSES IN PHOTOGRAPHY CHEMISTRY CINEMATOGRAPHY COLOUR PRINTING DYES ELECTROGRAPHY HOLOGRAPHY LAKES LINING MACHINES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS 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 TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A new colour developer compsn. comprises phenolic material (a), an aromatic carboxylate component (b) and divalent Zn where: (a) is a colour developer contg. min. 3.4 (pref. min. 20.4) wt% phenolic gp; (b) is carboxylic acid(s) with free acid log Kow at least 2.9 (pref. at least 3.8) (Kow = octanol/water partition coefft.). The compsn. has colour forming efficiency of at least 95 and solvent resistance of at least 30%. Prepn. of the compsn. as a homogeneous mixt. and record sheet incorporating the compsn. are also claimed.