EP0116428A2
Expired / Lapsed
EP
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Silver halide photographic light-sensitive material
Assignee: Konica Minolta Inc
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Filing: 1984-01-27
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Granted: —
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Expires: 2004-01-27
Abstract
Abstract A photographic material comprises a support bearing thereon at least one silver halide emulsion layer containing at least one non-colour-developable and diffusion-resistant phenol compound and, as phenol cyan layer, at least one compound of the formula: wherein R 1 represents a ballast radical which endows with diffusion-resistance said phenol cyan coupler and a cyan dye produced by said coupler, Ar represents an aryl radical, and X represents hydrogen or a radical capable of splitting off upon coupling of said coupler to the oxidant of an aromatic primary amine color developing agent.
Inventors
- 👤 Toshihiko Kimura
- 👤 Yutaka Kaneko
- 👤 Takashi Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 19:10
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3003; G03C7/3005; G03C7/3006; G03C7/392; G03C7/39208; G03C7/39212; G03C7/39216; G03C7/3029; G03C2007/3034
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
97 words
A photographic material comprising a support bearing thereon at least one silver halide emulsion layer containing at least one phenol cyan coupler and at least one non-color-developable and diffusion-resistant phenol compound, characterised in that the phenol cyan coupler is of the formula: wherein R 1 represents a ballast radical which endows with diffusion-resistance said phenol cyan coupler and a cyan dye produced by said coupler, Ar represents an aryl radical, and X represents hydrogen or a radical capable of splitting off upon coupling of said coupler to the oxidant of an aromatic primary amine color developing agent.
Claim 2
Dependent Claim
97 words
A photographic material comprising a support bearing thereon at least one silver halide emulsion layer containing at least one phenol cyan coupler and at least one non-color-developable and diffusion-resistant phenol compound, characterised in that the phenol cyan coupler is of the formula: wherein R 1 represents a ballast radical which endows with diffusion-resistance said phenol cyan coupler and a cyan dye produced by said coupler, Ar represents an aryl radical, and X represents hydrogen or a radical capable of splitting off upon coupling of said coupler to the oxidant of an aromatic primary amine color developing agent.
Claim 3
Dependent Claim
38 words
A photographic material according to claim 1, wherein R1 represents a straight- or branch-chained alkyl radical having four to thirty carbon atoms, an alkenyl radical, an aryl radical, a cycloalkyl radical or a five- or six-membered heterocyclic radical.
Claim 4
Dependent Claim
138 words
A photographic material according to claim 1, wherein R 1 represents a radical of the formula: wherein R 3 represents halogen, an alkyl radical, an aryl radical, a heterocyclic radical, an alkoxy radical, an aryloxy radical, a hydroxy radical, an acyloxy radical, a carboxy radical, an alkoxycarbonyl radical, an aryloxy-carbonyl radical, a mercapto radical, an alkylthio radical, an arylthio radical, an acyl radical, an acylamino radical, a sulfonamide radical, a carbamoyl radical, a sulfamoyl radical, a nitro radical or a cyano radical, K is zero or an integer from 1 to 4, each R 3 being the same or different when K is 2 or more, R 2 represents a straight- or a branched-chained alkylene radical which may be substituted by an aryl radical, J represents oxygen, sulphur or a sulfonyl radical and h is zero or one.
Claim 5
Dependent Claim
16 words
A photographic material according to claim 1, 2 or 3 wherein Ar represents a phenyl radical.
Claim 6
Dependent Claim
90 words
A photographic material according to claim 1, 2 or 3 wherein Ar represents a radical of the formula: wherein R 6 represents an alkyl radical, a cycloalkyl radical, an alkenyl radical, an aryl radical or an amino radical, R 7 represents a monovalent radical capable of substituting a hydrogen atom of the benzene ring; L is 1,2 or 3, m is 0,1,2 or 3, and when t and m are 2 or more the -SO 2 R 6 radicals or -R 7 radicals present may be the same or different.
Claim 7
Dependent Claim
44 words
A photographic material according to any one of the preceding claims, wherein the color density of the non-color-developable and diffusion-resistant phenol compound is not higher than one fortieth (1/40) of that of the phenol cyan coupler of formula [I] at the same molar concentration.
Claim 8
Dependent Claim
82 words
A photographic material according to any one of the preceding claims wherein the non-color-developable and diffusion-resistant phenol compound has a melting point of not higher than 50°C, is solid or liquid at ordinary temperature, and has a boiling point of not less than 200°C at atmospheric pressure; and the phenol ring of said compound is substituted in the fourth position thereof by a radical which does not split off by coupling to the oxidant of an aromatic primary amine color developing agent.
Claim 9
Dependent Claim
78 words
A photographic material according to claim 7, wherein the non-color-developable and diffusion-resistant phenol compound is the formula: wherein Z represents an alkyl radical, an alkenyl radical, an aryl radical, a cycloalkyl radical, an alkyl-carbonyl radical, an arylcarbonyl radical, an alkoxycarbonyl radical, an aryloxycarbonyl radical or a cyano radical, R 8 represents a monovalent radical capable of substituting a hydrogen atom of the phenol ring of said compound, and n is zero or an integer from 1 to 4.
Claim 10
Dependent Claim
94 words
A photographic material according to claim 8, wherein Z represents a straight- or branch-chained alkyl radical having one to twenty carbon atoms, a cycloalkyl radical having five to seven carbon atoms, an alkenyl radical having two to twenty carbon atoms, an aryl radical or a cyano radical, and R S represents a straight- or branch-chained alkyl radical having one to twenty carbon atoms, a cycloalkyl radical having five to seven carbon atoms, an alkenyl radical having two to twenty carbon atoms, an aryl radical, a cyano radical, a nitro radical or a halogen atom.
Claim 11
Dependent Claim
21 words
A photographic material according to claim 8 or 9, wherein Z and R 8 together contain five to thirty-two carbon atoms.
Claim 12
Dependent Claim
47 words
A photographic material according to any one of the preceding claims wherein the phenol cyan coupler of formula [I] and the non-color-developable and diffusion - resistive phenol compound are incorporated in the silver halide emulsion layer by making use of an ester phthalate as high boiling solvent.
Claim 13
Dependent Claim
34 words
A photographic material according to any one of the preceding claims, wherein the phenol cyan coupler of formula [I] is present in an amount of 0.03 to 0.5 moles per mole of silver halide.
Claim 14
Dependent Claim
38 words
A photographic material according to any one of the preceding claims, wherein the non-color-developable and diffusion-resistive phenol compound is present in an amount of 0.25 to 3 grams per gram of the phenol cyan coupler of formula [I].
Claim 15
Dependent Claim
41 words
A photographic material according to any one of the preceding claims wherein the silver halide emulsion layer is prepared by making use of a solution containing both the phenol cyan coupler of formula [I] and the non-color-developable and diffusion--resistive phenol compound.
Claim 16
Dependent Claim
20 words
Use of a photographic material as claimed in any one of the preceding claims in the formation of color images.
References Cited (Backward Citations)
No citation records indexed.
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