EP0422513A2
Expired / Lapsed
EP
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A silver halide photographic light-sensitive material containing a novel yellow coupler
Assignee: Konica Minolta Inc
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Filing: 1990-10-05
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Granted: —
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Expires: 2010-10-05
Abstract
Abstract A silver halide photographic light-sensitive material which contains a novel 2-equivalent yellow coupler having an excellent color forming property and an improved dispersion stability in emulsion is disclosed. The coupler is represented by the following formula (I), (II) or (III):
Inventors
- 👤 Toru Konica Corporation Kubota
- 👤 Mayumi Konica Corporation Tomotake
- 👤 Hidenobu Konica Corporation Ohya
- 👤 Atsushi Konica Corporation Tomotake
- 👤 Noboru Konica Corporation Mizukura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 08:22
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30535; C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/72
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
210 words
A silver halide photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer, wherein at least one of said emulsion layers contains a coupler represented by the following Formula (I), (II) or (III): Wherein R₁ and R₂ independently represent an alkyl group, cycloalkyl group or aryl group; R₃ and R₄ independently represent an alkyl group or cycloalkyl group; B represents a substituent; m represents an integer of from 0 to 3; and X represents an acylamino group, sulfonamide group, oxycarbonyl group, carbamoyl group, sulfamoyl group, carbonyloxy group, oxycarbonylamino group, ureido group or sulfonyloxy group; wherein R₅ represent wherein an alkyl group or cycloalkyl group; R₆ and R₇ independently represent an alkyl group or cycloalkyl group, and R₈ represents a hydrogen atom, alkyl group or cycloalkyl group, provided that the total carbon number of R₆, R₇ and R₈ is 7 or less; X is the same as defined in Formula (I); and Y represents a halogen atom, amino group, alkylthio group or arylthio group; Wherein R₉ represents an aryl group; R₁₀ and R₁₁ independently represent an alkyl group or cycloalkyl group, provided that the total carbon number of R₁₀ and R₁₁ is 9 or less; X and Y are the same as defined in Formula (I) and (II).
Claim 2
Dependent Claim
210 words
A silver halide photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer, wherein at least one of said emulsion layers contains a coupler represented by the following Formula (I), (II) or (III): Wherein R₁ and R₂ independently represent an alkyl group, cycloalkyl group or aryl group; R₃ and R₄ independently represent an alkyl group or cycloalkyl group; B represents a substituent; m represents an integer of from 0 to 3; and X represents an acylamino group, sulfonamide group, oxycarbonyl group, carbamoyl group, sulfamoyl group, carbonyloxy group, oxycarbonylamino group, ureido group or sulfonyloxy group; wherein R₅ represent wherein an alkyl group or cycloalkyl group; R₆ and R₇ independently represent an alkyl group or cycloalkyl group, and R₈ represents a hydrogen atom, alkyl group or cycloalkyl group, provided that the total carbon number of R₆, R₇ and R₈ is 7 or less; X is the same as defined in Formula (I); and Y represents a halogen atom, amino group, alkylthio group or arylthio group; Wherein R₉ represents an aryl group; R₁₀ and R₁₁ independently represent an alkyl group or cycloalkyl group, provided that the total carbon number of R₁₀ and R₁₁ is 9 or less; X and Y are the same as defined in Formula (I) and (II).
Claim 3
Dependent Claim
20 words
A silver halide photographic light-sensitive material of claim 1, wherein said R₁ of Formula (I) represents a branched alkyl group.
Claim 4
Dependent Claim
14 words
A silver halide photographic light-sensitive material of claim 2, wherein said R₁ is t-butyl.
Claim 5
Dependent Claim
22 words
A silver halide photographic light-sensitive material of claim 1, wherein said R₂ of Formula (I) represents a linear or branched alkyl group.
Claim 6
Dependent Claim
20 words
A silver halide photographic light-sensitive material of claim 1, wherein said R₅ of Formula (II) represents a brached alkyl group.
Claim 7
Dependent Claim
19 words
A silver halide photographic light-sensitive material of claim 1, wherein said Y of Formula (II) represents a halogen atom.
Claim 8
Dependent Claim
16 words
A silver halide photographic light-sensitive material of claim 6 ,wherein said Y is a chlorine atom.
Claim 9
Dependent Claim
19 words
A silver halide photographic light-sensitive material of claim 1, wherein said R₉ of Formula (III) is a methoxy-phenyl group.
Claim 10
Dependent Claim
65 words
A silver halide photographic light-sensitive material of claim 1, wherein said X of Formula (I), (II) and (III) is a group selected from the groups represented by following formulas (1) to (11): wheein R₁₂ represents an alkyl group, cycloalkyl group or aryl group; R₁₃ and R₁₄ independently represent a hydrogen atom or a group represented by R₁₂; and L represents a divalent organic linking group.
Claim 11
Dependent Claim
49 words
A silver halide photogrphic light-sensitive material of claim 1, wherein an amount of said coupler represented by Formula (I), (II) or (III) contained in said silver halide emulsion layer is within the range of from 10 to 300 g per mol of silver halide contained in said emulsion layer.
References Cited (Backward Citations)
No citation records indexed.
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