PHOTOTHERMOGRAPHIC EMULSIONS HAVING STABLE COLOR FORMING DEVELOPERS

The use of phenazine, phenoxazine and phenothiazine color forming developers in photothermographic dry silver emulsions provides a stable imaging system under both light and dark storage. The developers are of the general formula in which R, R to R are selected from a range of organic substituents,...

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Bibliographische Detailangaben
Hauptverfasser:	LOUIS MALCOLM LEICHTER, KRISTEN ANN HOFF, ROGER ANTHONY MADER, DAVID CLARK WEIGEL
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AUXILIARY PROCESSES IN PHOTOGRAPHY CHEMISTRY CINEMATOGRAPHY COLOUR PRINTING DYES ELECTROGRAPHY HETEROCYCLIC COMPOUNDS HOLOGRAPHY LAKES LINING MACHINES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS 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 TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	The use of phenazine, phenoxazine and phenothiazine color forming developers in photothermographic dry silver emulsions provides a stable imaging system under both light and dark storage. The developers are of the general formula in which R, R to R are selected from a range of organic substituents, Q is N, S, O or C, and X is carbonyl, sulfonyl, carboxyl amido or phosphonyl.