EP0283324A2
Expired / Lapsed
EP
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Light-sensitive silver halide color photographic material
Assignee: Konica Minolta Inc
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Filing: 1988-03-21
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Granted: —
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Expires: 2008-03-21
Abstract
Abstract A silver halide light-sensitive photographic material comprising a support bearing at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer, wherein the green-sensitive silver halide emulsion layer comprises a magenta coupler of formula [M-1]: wherein: Z is a group of non-metallic atoms which, together with the nitrogen and carbon to which it is attached, completes a nitrogen-containing optionally substituted heterocyclic ring; X is a group which is capable of being split off upon a reaction with an oxidation product of a color developing agent; and R is hydrogen or a substituent; and the blue-sensitive silver halide emulsion layer comprises a yellow coupler of formula [Y-I]; wherein: R₂₁ is an alkyl or cycloalkyl group; R₂₂ is an alkyl, cycloalkyl, acyl or aryl group; R₂₃ is a substituent; n is 0 or 1; R₂₄ is an organic group containing a carbonyl or sulfonyl group; J is a wherein R₂₅ is hydrogen or an alkyl, aryl or heterocyclic group; and X₁ is a group which is capable of being split off upon a reaction with an oxidation product of a color developing agent.
Inventors
- 👤 Shigeto Hirabayashi
- 👤 Mayumi Tsuruta
- 👤 Noboru Mizukura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:12
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/3225
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
195 words
A silver halide light-sensitive photographic material comprising a support bearing at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer, wherein the green-sensitive silver halide emulsion layer comprises a magenta coupler of formula [M-1]: wherein: Z is a group of non-metallic atoms which, together with the nitrogen and carbon to which it is attached, completes a nitrogen-containing optionally substituted heterocyclic ring; X is a group which is capable of being split off upon a reaction with an oxidation product of a color developing agent; and R is hydrogen or a substituent; and the blue-sensitive silver halide emulsion layer comprises a yellow coupler of formula [Y-I]; wherein: R₂₁ is an alkyl or cycloalkyl group; R₂₂ is an alkyl, cycloalkyl, acyl or aryl group; R₂₃ is a substituent; n is 0 or 1; R₂₄ is an organic group containing a carbonyl or sulfonyl group; J is a wherein R₂₅ is hydrogen or an alkyl, aryl or heterocyclic group; and X₁ is a group which is capable of being split off upon a reaction with an oxidation product of a color developing agent.
Claim 2
Dependent Claim
195 words
A silver halide light-sensitive photographic material comprising a support bearing at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer, wherein the green-sensitive silver halide emulsion layer comprises a magenta coupler of formula [M-1]: wherein: Z is a group of non-metallic atoms which, together with the nitrogen and carbon to which it is attached, completes a nitrogen-containing optionally substituted heterocyclic ring; X is a group which is capable of being split off upon a reaction with an oxidation product of a color developing agent; and R is hydrogen or a substituent; and the blue-sensitive silver halide emulsion layer comprises a yellow coupler of formula [Y-I]; wherein: R₂₁ is an alkyl or cycloalkyl group; R₂₂ is an alkyl, cycloalkyl, acyl or aryl group; R₂₃ is a substituent; n is 0 or 1; R₂₄ is an organic group containing a carbonyl or sulfonyl group; J is a wherein R₂₅ is hydrogen or an alkyl, aryl or heterocyclic group; and X₁ is a group which is capable of being split off upon a reaction with an oxidation product of a color developing agent.
Claim 3
Dependent Claim
23 words
A silver halide light-sensitive photographic material according to claim 1 wherein the nitrogen-containing heterocyclic ring is a pyrazole, imidazole, triazole or tetrazole ring.
Claim 4
Dependent Claim
67 words
A silver halide light-sensitive photographic material according to claim 1 or 2, wherein R is hydrogen, a halogen or an alkyl, aryl, anilino, acylamino, sulfonamido, alkylthio, arylthio, alkenyl, cycloalkyl, cycloalkenyl, alkynyl, heterocyclic, sulfonyl, sulfinyl, phosphonyl, acyl, carbamoyl, sulfamoyl, cyano, alkoxy, aryloxy, heterocyclicoxy, siloxy, acyloxy, carbamoyloxy, amino, alkylamino, imido, ureido, sulfamoylamino, alkoxycarbonylamino, aryloxycarbonylamino, alkoxycarbonyl, aryloxycarbonyl or heterocyclicthio group, a spiro compound residue or a cross-linked hydrocarbon compound residue.
Claim 5
Dependent Claim
91 words
A silver halide light-sensitive photographic material according to any one of claims 1 to 3 wherein X is hydrogen, a halogen or an alkoxy, aryloxy, heterocyclicoxy, acyloxy, sulfonyloxy, alkoxycarbonyloxy, aryloxycarbonyl, alkyloxalyloxy, alkoxyoxalyloxy, alkylthio, arylthio, heterocyclicthio, alkyloxythiocarbonylthio, acylamino, sulfonamido, nitrogen-containing heterocyclic bonded by a ring-nitrogen atom, alkyloxycarbonylamino, aryloxycarbonylamino or carboxyl group or a group of formula; wherein: R₁ʹ is as defined for R in claim 1 or 3; Zʹ is as defined for Z in claim 1; and R₂ʹ and R₃ʹ are each independently hydrogen or an aryl, alkyl or heterocyclic group.
Claim 6
Dependent Claim
58 words
A silver halide light-sensitive photographic material according to any one of claims 1 to 4 wherein the magenta coupler is of one of the following formulae: wherein: R₁ is as defined for R in claim 1 or 3; each of R₂ to R₈ is hydrogen or a substituent; and X is as defined in claim 1 or 4.
Claim 7
Dependent Claim
73 words
A silver halide light-sensitive photographic material according to any one of claims 1 to 4 wherein the magenta coupler is of formula [M-VIII]: wherein: R₁ is as defined for R in claim 1 or 3; X is as defined in claim 1 or 4; and Z₁, together with the two nitrogens to which it is attached and the carbon to which the two nitrogens are attached, completes a nitrogen-containing optionally substituted heterocyclic ring.
Claim 8
Dependent Claim
11 words
A yellow coupler of formula [Y-I] as defined in claim 1.
References Cited (Backward Citations)
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