EP 0415056 A2 19910306 - Colour photographic recording material with a coupler liberating a photographically useful compound.
Title (en)
Colour photographic recording material with a coupler liberating a photographically useful compound.
Title (de)
Farbfotografisches Aufzeichnungsmaterial mit einem Kuppler, der eine fotografisch wirksame Verbindung freisetzt.
Title (fr)
Matériau d'enregistrement pour photographie en couleurs à un coupleur libérant un composé photographiquement actif.
Publication
Application
Priority
DE 3925438 A 19890801
Abstract (en)
[origin: JPH0369935A] PURPOSE: To improve the activity, stability and solubility by incorporating a specified coupler and a coupler capable of releasing a photographically active compd. into an emulsion. CONSTITUTION: A coupler represented by formula I and a coupler capable of releasing a photographically active compd. are incorporated into a photosensitive silver halide emulsion layer. In the formula I, R<1> is an alkyl, aryl, etc., R<2> is H, a halogen, alkoxy, etc., X is a residue of a photographically active compd. contg. a monocyclic 1,2,3- or 1,2,4-triazole ring, TIME is a bonding element which is released together with the atomic group X bonding to TIME when the coupler reacts with the oxidized product of a color developer under development conditions and then releases the atomic group X as a photographically active compd. and (n) is 0 or 1. The solubility is improved while maintaining high activity, high stability and easiness of synthesis.
Abstract (de)
Bei Verwendung von DIR-Kupplern der Formel I in farbfotografischen Silberhalogenidmaterialien werden hohe Kanteneffekte und Interimageeffekte erzielt. <IMAGE> In Formel I bedeuten: R¹ Alkyl, beispielsweise -C4H9-t, Aryl, beispielsweise p-Alkoxyphenyl -NH-Aryl oder -NH-NH-R³; R² H, Halogen, z.B. Chlor, Alkoxy, Alkylthio oder -NH-R<4>; R³, R<4> Acyl; X den Rest einer fotografisch wirksamen Verbindung mit einem monocyclischen 1,2,3- oder 1,2,4-Triazolring; TIME ein Bindeglied; n 0 oder 1.
IPC 1-7
IPC 8 full level
C07D 285/24 (2006.01); C07D 417/06 (2006.01); C07D 417/12 (2006.01); G03C 7/26 (2006.01); G03C 7/305 (2006.01); G03C 7/32 (2006.01); G03C 7/392 (2006.01)
CPC (source: EP US)
G03C 7/30535 (2013.01 - EP US); G03C 7/30558 (2013.01 - EP US); Y10S 430/158 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0415056 A2 19910306; EP 0415056 A3 19910320; EP 0415056 B1 19940615; DE 3925438 A1 19910207; DE 59006122 D1 19940721; JP H0369935 A 19910326; US 5021330 A 19910604
DOCDB simple family (application)
EP 90113825 A 19900719; DE 3925438 A 19890801; DE 59006122 T 19900719; JP 19638490 A 19900726; US 55470090 A 19900718