US4639413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide color photographic materials containing magenta coupler and high boiling point organic solvent
Assignee: Fujifilm Holdings Corp
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Filing: 1985-08-14
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Granted: 1987-01-27
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Expires: 2005-08-14
Abstract
Abstract A silver halide color photographic material is described, comprising a support having formed thereon at least one silver halide emulsion layer having dispersed therein, in a coexisting state, at least one magenta coupler represented by formula (I) and at least one high-boiling point organic solvent represented by the formula (II) ##STR1## wherein R 1 and R 2 each represents a hydrogen atom or a substituent and x represents a hydrogen atom or a group capable of being released by a coupling reaction with the oxidation product of an aromatic primary amine developing agent; and wherein R 3 , R 4 , and R 5 each represents an alkyl group, a cycloalkyl group, or an alkenyl group, and the total number of carbon atom of the groups R 3 , R 4 and R 5 is from 12 to 60.
Inventors
- 👤 Toshio Kawagishi
- 👤 Kiyoshi Nakazyo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:19
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3003; G03C7/3005; G03C7/3008; G03C7/301; G03C7/388; G03C7/3885
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
164 words
A silver halide color photographic material comprising a support having formed thereon at least one silver halide emulsion layer having dispersed therein, in a coexisting state, at least one magenta coupler represented by formula (I) and at least one high-boiling point organic solvent represented by formula (II) ##STR12## wherein R 1 and R 2 each represents a hydrogen atom or a substituent and X represents a hydrogen atom or a group capable of being released by a coupling reaction with the oxidation product of an aromatic primary amine developing agent; and wherein, R 3 , R 4 , and R 5 each represents an alkyl group, a cycloalkyl group, or an alkenyl group, and the total number of carbon atoms of the groups R 3 , R 4 , and R 5 is from 12 to 60, wherein the weight ratio of the high-boiling point organic solvent represented by formula (II) to the magenta coupler represented by formula (I) is from 0.05/1 to 20/1.
Claim 2
Dependent Claim
164 words
A silver halide color photographic material comprising a support having formed thereon at least one silver halide emulsion layer having dispersed therein, in a coexisting state, at least one magenta coupler represented by formula (I) and at least one high-boiling point organic solvent represented by formula (II) ##STR12## wherein R 1 and R 2 each represents a hydrogen atom or a substituent and X represents a hydrogen atom or a group capable of being released by a coupling reaction with the oxidation product of an aromatic primary amine developing agent; and wherein, R 3 , R 4 , and R 5 each represents an alkyl group, a cycloalkyl group, or an alkenyl group, and the total number of carbon atoms of the groups R 3 , R 4 , and R 5 is from 12 to 60, wherein the weight ratio of the high-boiling point organic solvent represented by formula (II) to the magenta coupler represented by formula (I) is from 0.05/1 to 20/1.
Claim 3
Dependent Claim
118 words
A silver halide color photographic material as in claim 1, wherein R 1 and R 2 each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a heterocyclic ring group, a cyano group, an alkoxy group, an aryloxy group, a heterocyclic oxy group, an acyloxy group, a carbamoyloxy group, a silyloxy group, a sulfonyloxy group, an acylamino group, an anilino group, a ureido group, an imido group, a sulfamoylamino group, a carbamoylamino group, an alkylthio group, an arylthio group, a heterocyclic thio group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonamido group, a carbamoyl group, an acyl group, a sulfamoyl group, a sulfonyl group, a sulfinyl group, an alkoxycarbonyl group, or an aryloxycarbonyl group.
Claim 4
Dependent Claim
21 words
A silver halide color photographic material as in claim 1, wherein R 1 and R 2 each represents an alkyl group.
Claim 5
Dependent Claim
25 words
A silver halide color photographic material as in claim 1, wherein R 1 represents a methyl group and R 2 represents a substituted alkyl group.
Claim 6
Dependent Claim
16 words
A silver halide color photographic material as in claim 1, wherein X represents a halogen atom.
Claim 7
Dependent Claim
20 words
A silver halide color photographic material as in claim 1, wherein X represents a group linking by an oxygen atom.
Claim 8
Dependent Claim
31 words
A silver halide color photographic material as in claim 1, wherein R 3 , R 4 and R 5 each represents a 2-ethylhexyl group, a 7-methyloctyl group or a cyclohexyl group.
Claim 9
Dependent Claim
32 words
A silver halide color photographic material as in claim 1, wherein R 3 , R 4 and R 5 each represents a straight-chain alkyl group having from 8 to 18 carbon atoms.
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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) | 1990-01-26 | 1990-07-28 | 1991-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-26 | 1994-07-28 | 1995-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-26 | 1998-07-28 | 1999-01-27 | $7700.00 | Window Closed / Lapsed |