EP 0320776 B1 19930331 - COLOR PHOTOGRAPHIC SILVER HALIDE MATERIAL
Title (en)
COLOR PHOTOGRAPHIC SILVER HALIDE MATERIAL
Publication
Application
Priority
DE 3743006 A 19871218
Abstract (en)
[origin: EP0320776A2] Colour-photographic silver halide material which, in at least one silver halide emulsion layer, contains a magenta coupler of the formulae (I) or (II) <IMAGE> in which R1 is alkyl, aryl or a ballast radical, R2 is a ballast radical, alkyl or aryl, Z is hydrogen or a group which can be eliminated in the reaction with the developer oxidation product, and a compound of the formula (III) <IMAGE> in which R3 is alkyl, alkoxy, aryl, optionally substituted amino or the radical of a heterocyclic ring, R4 is COR5, NHR6 or S(O)nR7, R5 is OR8, NHR8, alkyl, aryl or a heterocyclic ring, R6 is SO2R8, COR8 or CONHR8, R7 is alkyl, aryl or NHR8, R8 is alkyl or aryl and n is 0, 1 or 2, with the exception of compounds in which R3 is a carboxy- methoxyphenyl, carboxymethoxy, alkoxycarbonyl-methoxy or alkoxycarbonylmethoxyphenyl radical substituted on the methylene group.
IPC 1-7
IPC 8 full level
G03C 7/38 (2006.01); G03C 7/26 (2006.01); G03C 7/30 (2006.01); G03C 7/388 (2006.01); G03C 7/392 (2006.01)
CPC (source: EP US)
G03C 7/301 (2013.01 - EP US); G03C 7/3885 (2013.01 - EP US); G03C 7/39236 (2013.01 - EP US)
Citation (examination)
RESEARCH DISCLOSURE, Nr. 245, September 1984, S. 442-454, Havant, Hampshire, GB, Abschnitt Nr. 24531: "Image-forming process"
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0320776 A2 19890621; EP 0320776 A3 19900516; EP 0320776 B1 19930331; DE 3743006 A1 19890629; DE 3879901 D1 19930506; JP H021843 A 19900108; US 4898811 A 19900206
DOCDB simple family (application)
EP 88120447 A 19881207; DE 3743006 A 19871218; DE 3879901 T 19881207; JP 31398488 A 19881214; US 27941588 A 19881202