US4914013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide light-sensitive color photographic material
Assignee: Konica Minolta Inc
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Filing: 1989-03-02
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Granted: 1990-04-03
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Expires: 2009-03-02
Abstract
Abstract A silver halide color photographic light-sensitive material is disclosed, which contains a magenta coupler having a specific ballast group. The light-sensitive material is improved in solubility in an organic solvent, dispersibility and stability of dispersion in a silver halide emulsion. The coupler is represented by the following Formula M-1; ##STR1## wherein R 2 and R 3 are each a substituent provided that and at least one of which has a group represented by the following Formula I; and X is a hydrogen atom or a group capable of being split off upon reaction with the oxidation produce of a color developing agent; ##STR2## wherein R 1 is a hydrogen atom or a normal or branched alkyl group having 1 to 20 carbon atoms.
Inventors
- 👤 Satoru Ikesu
- 👤 Noboru Mizukura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:46
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36; G03C7/38; G03C7/384; C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/44; C07D231/52
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
102 words
A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer containing a magenta coupler represented by the following Formula M-1; ##STR95## wherein R 2 and R 3 are each a substituent, provided that at least one of which has a group represented by the following Formula I; and X is a hydrogen atom or a group capable of being split off upon reaction with the oxidation product of a color developing agent, ##STR96## wherein R 1 is a hydrogen atom or a normal or branched alkyl group having 1 to 20 carbon atoms.
Claim 2
Dependent Claim
102 words
A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer containing a magenta coupler represented by the following Formula M-1; ##STR95## wherein R 2 and R 3 are each a substituent, provided that at least one of which has a group represented by the following Formula I; and X is a hydrogen atom or a group capable of being split off upon reaction with the oxidation product of a color developing agent, ##STR96## wherein R 1 is a hydrogen atom or a normal or branched alkyl group having 1 to 20 carbon atoms.
Claim 3
Dependent Claim
16 words
The material of claim 1, wherein said R 2 is a substituted or unsubstituted aryl group.
Claim 4
Dependent Claim
13 words
The material of claim 2, said R 2 is a substituted aryl group.
Claim 5
Dependent Claim
61 words
The material of claim 3, wherein a substituent contained in said substituted aryl group is a halogen atom, an alkyl group, an alkoxy group, an aryloxy group, an acylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, a sulfonyl group, an acyloxy group, an ester group, a carboxy group, a sulfo group, a cyano group or a nitro group.
Claim 6
Dependent Claim
35 words
The material of claim 1, wherein said R 3 is a substituted or unsubstituted anilino group, a substituted or unsubstituted acylamino group, a substituted or unsubstituted ureido group or a substituted or unsubstituted carbamoyl group.
Claim 7
Dependent Claim
23 words
The material of claim 1, wherein said R 1 is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms.
Claim 8
Dependent Claim
39 words
The material of claim 1, wherein said magenta coupler is contained in said silver halide emulsion layer in an amount of from 7×10 -2 mol to 7×10 -1 mol per mol of silver halide contained in said emulsion layer.
Claim 9
Dependent Claim
39 words
The material of claim 7, wherein said magenta coupler is contained in said silver halide emulsion layer in an amount of from 1×10 -1 mol to 4×10 -1 mol per mol of silver halide contained in said emulsion layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |