US4500630A
Expired / Lapsed
US
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Method for forming magenta color image
Assignee: Fujifilm Holdings Corp
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Filing: 1984-02-15
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Granted: 1985-02-19
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Expires: 2004-02-15
Abstract
Abstract A silver halide photosensitive material is developed with a developing solution containing an aromatic primary amine in the presence of a coupler represented by the following general formula (I): ##STR1## wherein R 1 , R 2 and R 3 each represents a hydrogen atom or a certain substituent group, and X represents a hydrogen atom or a coupling eliminable group; to provide magenta color image having high color purity.
Inventors
- 👤 Tadahisa Sato
- 👤 Toshio Kawagishi
- 👤 Nobuo Furutachi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:03
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/38; C07D487/00; C07D487/02; C07D487/04; G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30529; G03C7/32; G03C7/36; G03C7/38; G03C7/381; G03C7/382; G03C7/3825; G03C7/383
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
83 words
A method of forming a magenta color image, comprising the steps of: exposing a silver halide photosensitive material; and developing the material to form an image, using a developing solution containing an aromatic primary amine, the developing being carried out in the presence of a coupler represented by the following general formula (I): ##STR12## wherein R 1 , R 2 and R 3 independently represent a hydrogen atom or a substituent group, and X represents a hydrogen atom or a coupling eliminable group.
Claim 2
Independent Claim
83 words
A method of forming a magenta color image, comprising the steps of: exposing a silver halide photosensitive material; and developing the material to form an image, using a developing solution containing an aromatic primary amine, the developing being carried out in the presence of a coupler represented by the following general formula (I): ##STR12## wherein R 1 , R 2 and R 3 independently represent a hydrogen atom or a substituent group, and X represents a hydrogen atom or a coupling eliminable group.
Claim 3
Dependent Claim
115 words
A method of forming a magenta color image as claimed in claim 1, wherein R 1 , R 2 and R 3 independently represent a hydrogen atom, an aliphatic residue, an aryl group, a heterocyclyl group, a cyano group, an alkoxy group, an aryloxy group, an acylamino group, an anilino group, a ureido group, a sulfamoylamino group, an alkylthio group, an arylthio group, an alkoxycarbonylamino group, a sulfonamido group, a carbamoyl group, a sulfamoyl group, a sulfonyl group, a heterocyclyloxy group, an acyloxy group, a carbamoyloxy group, a silyloxy group, an aryloxycarbonylamino group, an imido group, a heterocyclylthio group, a sulfinyl group, a phosphonyl group, an aryloxycarbonyl group, an acyl group, or an alkoxycarbonyl group.
Claim 4
Dependent Claim
51 words
A method of forming a magenta color image as claimed in claim 2, wherein X represents a hydrogen atom, a halogen atom, a carboxy group, or a coupling eliminable group which is attached to a pyrazole nucleus through an oxygen atom, a nitrogen atom, a sulfur atom or a carbon atom.
Claim 5
Dependent Claim
36 words
A method of forming a magenta color image as claimed in claim 1, wherein R 2 and R 3 combined with each other to form a 5-, 6- or 7-membered ring other than an aromatic ring.
Claim 6
Dependent Claim
27 words
A method of forming a magenta color image as claimed in claim 1, wherein the coupler of the general formula (I) is present in the photosensitive material.
Claim 7
Dependent Claim
47 words
A method of forming a magenta color image as claimed in claim 5, wherein the coupler of the general formula (I) is present in the material in an amount in the range of from 2×10 -3 mole to 5×10 -1 mole per 1 mole of silver halide.
Claim 8
Dependent Claim
47 words
A method of forming a magenta color image as claimed in claim 6, wherein the coupler of the general formula (I) is present in the material in an amount in the range of from 1×10 -2 mole to 5×10 -1 mole per 1 mole of silver halide.
Claim 9
Dependent Claim
27 words
A method of forming a magenta color image as claimed in claim 1, wherein the coupler of the general formula (I) is present in the developing solution.
Claim 10
Dependent Claim
45 words
A method of forming a magenta color image as claimed in claim 8, wherein the coupler of the general formula (I) is present in the developing solution in an amount in the range of 0.001 to 0.1 mole per 1,000 ml of the developing solution.
Claim 11
Dependent Claim
45 words
A method of forming a magenta color image as claimed in claim 9, wherein the coupler of the general formula (I) is present in the developing solution in an amount in the range of 0.01 to 0.05 mole per 1,000 ml of the developing solution.
Claim 12
Dependent Claim
102 words
A method of forming a magenta color image as claimed in claim 1, wherein the developing is carried out in the presence of a color image stabilizing agent represented by the following general formula (XV): ##STR13## wherein R 4 represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclyl group; R 5 , R 6 , R 8 and R 9 each represents a hydrogen atom, a hydroxy group, an alkyl group, an aryl group, an alkoxy group or an acylamino group; and R 7 represents an alkyl gorup, a hydroxy group, an aryl group or an alkoxy group.
Claim 13
Dependent Claim
49 words
A method of forming a magenta color image as claimed in claim 11, wherein the R 4 and R 5 of the color stabilizing agent combined with each other to form a 5- or 6-membered ring and further wherein R 7 is a hydroxy group or an alkoxy group.
Claim 14
Dependent Claim
35 words
A method of forming a magenta color image as claimed in claim 11, wherein the R 4 and R 5 of the color image stabilizing agent combined with each other to form a methylenedioxy ring.
Claim 15
Dependent Claim
52 words
A method of forming a magenta color image as claimed in claim 11, wherein the R 7 and R 8 of the color image stabilizing element combined with each other to form a 5-membered hydrocarbon ring and wherein the R 4 is an alkyl group, an aryl group or a heterocyclyl group.
Claim 16
Dependent Claim
43 words
A method of forming a magenta color image as claimed in claim 11, wherein an amount of the color image stabilizing agent of the general formula (XV) is from 0.01 to 5.0 moles per mole of the coupler of the general formula (I).
Claim 17
Dependent Claim
43 words
A method of forming a magenta color image as claimed in claim 15, wherein the amount of the color image stabilizing agent of the general formula (XV) is from 0.05 to 1.0 mole per mole of the coupler of the general formula (I).
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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) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |