FOTOGRAFISCHES AUFZEICHNUNGSMATERIAL MIT EINER VORLAEUFERVERBINDUNG EINER FOTOGRAFISCH WIRKSAMEN VERBINDUNG

FOTOGRAFISCHES AUFZEICHNUNGSMATERIAL MIT EINER VORLAEUFERVERBINDUNG EINER FOTOGRAFISCH WIRKSAMEN VERBINDUNG

Precursor compounds from which photographically-active compounds are released with a time delay correspond to the following general formula wherein A represents the residue of a compound which undergoes oxidative coupling; X represents -O-, -S- or -NR1-; Y represents a releasable group which may con...

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Bibliographische Detailangaben
Hauptverfasser: BERGTHALLER,PETER,DR, ODENWAELDER,HEINRICH,DR, MATEJEC,REINHARD,DR
Format: Patent
Sprache:ger
Schlagworte:
AUXILIARY PROCESSES IN PHOTOGRAPHY
CHEMISTRY
CINEMATOGRAPHY
ELECTROGRAPHY
HETEROCYCLIC COMPOUNDS
HOLOGRAPHY
METALLURGY
ORGANIC CHEMISTRY
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
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Beschreibung
Zusammenfassung:Precursor compounds from which photographically-active compounds are released with a time delay correspond to the following general formula wherein A represents the residue of a compound which undergoes oxidative coupling; X represents -O-, -S- or -NR1-; Y represents a releasable group which may consist of or contain the residue of a photographically-active compound; and R represents a group for controlling the kinetics of release. Advantageous pictorial properties (inter-image effect, edge effect, modulation transfer function) are obtained with compounds according to the present invention if the photographically-active residue is the residue of a development inhibitor.