US4954431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic light-sensitive material
Assignee: Konica Minolta Inc
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Filing: 1989-06-23
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Granted: 1990-09-04
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Expires: 2009-06-23
Abstract
Abstract A silver halide photographic material containing a specific magenta coupler and a heterocyclic mercapto compound is disclosed. The photographic material is raised in its resistivity to magenta fogging caused by contamination of developer with bleaching solution, without degradation of color reproducibility. The photographic material is comprised of a support having thereon a silver halide emulsion layer and a non-light-sensitive layer and the emulsion layer contains a magenta coupler represented by the following Formula I and at least one of the emulsion layer and the non-light-sensitive layer contains a compound represented by the following formula S. ##STR1##
Inventors
- 👤 Toyoki Nishijima
- 👤 Masaki Tanji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:12
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/3924; G03C7/3003; G03C7/3005; G03C7/3008; G03C7/3012
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
210 words
A silver halide photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer and a non-light-sensitive layer, wherein said silver halide emulsion layer contains at least one of the magenta couplers represented by the following Formula I, and at least one of said silver halide emulsion layer and said non-light-sensitive layer contains at least one of the compounds represented by the following Formula S: ##STR75## wherein Ar is an aryl group; Y is a hydrogen atom or a group capable of being split off upon reaction with the oxidation product of a color developing agent, X is a halogen atom, an alkoxy group or an alkyl group; R 1 is a straight or branched chain alkyl group having 1 to 20 carbon atoms; J is a straight or branched chain alkylene group; and n is an integer of 0 to 4, provided that the groups represented by X may be the same with or different from each other when n is 2 or more, ##STR76## wherein Q is a group of atoms necessary to complete a five-or six-member heterocyclic ring which is allowed to be condensed with a benzene ring or a naphthalene ring; M is a hydrogen atom, an alkali metal atom or an ammonium group.
Claim 2
Dependent Claim
210 words
A silver halide photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer and a non-light-sensitive layer, wherein said silver halide emulsion layer contains at least one of the magenta couplers represented by the following Formula I, and at least one of said silver halide emulsion layer and said non-light-sensitive layer contains at least one of the compounds represented by the following Formula S: ##STR75## wherein Ar is an aryl group; Y is a hydrogen atom or a group capable of being split off upon reaction with the oxidation product of a color developing agent, X is a halogen atom, an alkoxy group or an alkyl group; R 1 is a straight or branched chain alkyl group having 1 to 20 carbon atoms; J is a straight or branched chain alkylene group; and n is an integer of 0 to 4, provided that the groups represented by X may be the same with or different from each other when n is 2 or more, ##STR76## wherein Q is a group of atoms necessary to complete a five-or six-member heterocyclic ring which is allowed to be condensed with a benzene ring or a naphthalene ring; M is a hydrogen atom, an alkali metal atom or an ammonium group.
Claim 3
Dependent Claim
27 words
The material of claim 1, wherein said alkylene group represented by J is a metylene group substituted by an alkyl group having 1 to 20 carbon atoms.
Claim 4
Dependent Claim
27 words
The material of claim 2, wherein said alkylene group represented by J is a methylene group substituted by an alkyl group having 1 to 4 carbon atoms.
Claim 5
Dependent Claim
62 words
The material of claim 1, wherein said heterocyclic ring represented by Q is an imidazole ring, a tetrazole ring, a thiazole ring, an oxazole ring, a selenazole ring, a benzimidazole ring, a naphthoimidazole ring, a benzothiazole ring, a naphthothiazole ring, a benzoselenazole ring, a benzoxazole, a pyridine ring, a pyrimidine ring or a quinoline ring, said heterocyclic rings may have a substituent.
Claim 6
Dependent Claim
33 words
The material of claim 1, wherein said magenta coupler is contained in said silver halide emulsion layer in an amount of from 1×10 -3 mol to 1 mol per mol of silver halide.
Claim 7
Dependent Claim
34 words
The material of claim 5, wherein said magenta coupler is contained in said silver halide emulsion layer in an amount of from 1×10 -2 mol to 8×10 -1 mol per mol of silver halide.
Claim 8
Dependent Claim
61 words
The material of claim 1, wherein said compound represented by Formula S is added to a silver halide emulsion contained in said silver halide emulsion layer at the course of chemical ripening, at the time that chemical ripening is completed or in the time of later than completion of chemical ripening and not later than coating of said silver halide emulsion.
Claim 9
Dependent Claim
37 words
The material of claim 1, wherein said compound represented by Formula S is contained in said silver halide emulsion layer in an amount of from 1×10 -6 mol to 1×10 -1 mol per mol of silver halide.
Claim 10
Dependent Claim
33 words
The material of claim 8, wherein said compound is contained in said silver halide emulsion layer in an amount of from 1×10 -5 mol to 1×10 -2 mol per mol of silver halide.
Claim 11
Dependent Claim
27 words
The materila of claim 1, wherein a high-boiling organic solvent having a dielectric constant of not more than 6.5 is contained in said silver halide emulsion layer.
Claim 12
Dependent Claim
29 words
The material of claim 10, wherein said high-boiling organic solvent is a phthalic acid ester, a phospholic acid ester, an organic acid amide, a ketone or a carbon hydride.
Claim 13
Dependent Claim
24 words
The material of claim 11, wherein said high-boiling organic solvent is a dialkyl phthalate having an alkyl group including 9 or more carbon atoms.
Claim 14
Dependent Claim
14 words
The material of claim 1, wherein said silver halide emulsion layer comprises silver chlorobromide.
Claim 15
Dependent Claim
19 words
The material of claim 13, wherein said silver chlorobromide contains not less than 90 mol % of silver chloride.
Claim 16
Dependent Claim
19 words
The material of claim 14, wherein said silver chlorobromide contains not less than 99 mol % of silver chloride.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |