POSITIVE-WORKING IMMOBILE PHOTOGRAPHIC COMPOUNDS AND PHOTOGRAPHIC ENTS CONTAINING SAME

Photo?raphic elements, processes for forming images in photographic elements and new compounds are disclosed. Generally, the invention relates to immobile compounds which can be used to provide positive images from negative recording-develop-ing photographic materials such as negative silver halide...

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Bibliographic Details
Main Authors HINSHAW, JERALD C, CONDIT, PAUL B
Format Patent
LanguageEnglish
French
Published 03.07.1979
Subjects
ADHESIVES
AUXILIARY PROCESSES IN PHOTOGRAPHY
CHEMISTRY
CINEMATOGRAPHY
DYES
ELECTROGRAPHY
HOLOGRAPHY
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
POLISHES
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Summary:Photo?raphic elements, processes for forming images in photographic elements and new compounds are disclosed. Generally, the invention relates to immobile compounds which can be used to provide positive images from negative recording-develop-ing photographic materials such as negative silver halide emulsions. The compounds contain a photographically useful group such as a dye or dye precursor and are capable or releasing said photographically useful group under alkaline conditions, and are also capable of reaction with an imagewise pattern of oxidized silver halide developing agent before substantial release of said photographically useful group occurs, to provide a reaction product having a substantially lower rate of release of said photographically useful group.
Bibliography:Application Number: CA19780310053