NEAR INFRARED ANTIHALATION DYES

NEAR INFRARED ANTIHALATION DYES Compounds suitable for use as antihalation or acutance dyes in silver halide photographic emulsions having a nucleus of the general formula (I), in which: Y and Z independently represent the non-metallic atoms necessary to complete a carbocyclic or heterocyclic ring o...

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Bibliographic Details
Main Authors BURROWS, RONALD W, HALL, KEVIN P, KIRK, MARK P
Format Patent
LanguageEnglish
French
Published 11.11.1990
Edition5
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:NEAR INFRARED ANTIHALATION DYES Compounds suitable for use as antihalation or acutance dyes in silver halide photographic emulsions having a nucleus of the general formula (I), in which: Y and Z independently represent the non-metallic atoms necessary to complete a carbocyclic or heterocyclic ring or a fused ring system, M? is a cation, and, X represents the nonmetallic atoms necessary to complete a 5-, 6- or 7- membered carbocyclic ring, a 5-,6- or 7- membered heterocyclic ring or a fused ring system on a 5-, 6- or 7- membered nucleus and comprising up to 14 total ring atoms selected from C,N, O, S and Se.
Bibliography:Application Number: CA19902016494