Aqueous, solid particle dispersions of dichalcogenides for photographic emulsions and coatings

This invention provides a method of preparing a silver halide photographic emulsion which comprises adding to the silver halide emulsion a solid particle dispersion of a non-labile chalcogen compound represented by Formula I: R -X -X -R (Formula I> It further provides a silver halide photographic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BOETTCHER JOHN WILLIAM C O EAS, KLAUS ROGER LEE C O EASTMAN KO, MANTHEY JOSEPH WILLIAM C O EAS
Format:	Patent
Sprache:	eng ; fre ; 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:	This invention provides a method of preparing a silver halide photographic emulsion which comprises adding to the silver halide emulsion a solid particle dispersion of a non-labile chalcogen compound represented by Formula I: R -X -X -R (Formula I> It further provides a silver halide photographic emulsion prepared by the above method.