US4499181A
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US
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Photographic recording material with indole redox releaser
Assignee: Konica Minolta Inc
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Filing: 1983-06-02
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Granted: 1985-02-12
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Expires: 2003-06-02
Abstract
Abstract A photographic recording material. On a support are provided a silver emulsion halide layer and a photographic layer. The photographic layer contains an indole compound represented by the general formula (I): ##STR1## wherein PUG represents a photographically useful group, Ball represents an organic group which has enough molecular weight and/or disposition to render the compound non-diffusible during processing of the photographic recording material with an alkaline medium and wherein the Ball contains a nitrogen atom which is directly attached to the 5th or 6th position of the indole ring. R 1 represents a halogen atom or a monovalent organic group. R 2 represents a hydrogen atom or a low molecular group attached, through a carbon atom, to the 2nd position of the indole ring. "m" represents an integer of zero to 3.
Inventors
- 👤 Kazumasa Watanabe
- 👤 Hidetaka Deguchi
- 👤 Shunji Suginaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:39
CPC Classifications
C; C07; C07D; C07D403/00; C07D403/02; C07D403/04; C07D209/00; C07D209/02; C07D209/04; C07D209/08; C07D209/30; C07D209/40; C09; C09B; C09B29/00; C09B29/24; C09B29/28; C09B29/34; C09B29/36; C09B29/3604; C09B29/3647; C09B29/3652; C09B29/366; G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C8/00; G03C8/02; G03C8/08; G03C8/10; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158; Y10S430/159; Y10S430/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
144 words
A photographic recording material which comprises, on a support, a silver emulsion halide layer and a photographic layer comprising an indole compound represented by the general formula (I): ##STR8## wherein PUG represents a photographically useful group, Ball represents an organic group which has enough molecular weight and/or disposition to render the compound non-diffusible during processing of said photographic recording material with an alkaline medium and wherein said Ball contains a nitrogen atom which is directly attached to the 5th or 6th position an the iodole ring of said indole compound, said Ball being a succinimide group or a phthalimide group, R 1 represents a halogen atom or a monovalent organic group, R 2 represents a hydrogen atom or a low molecular group attached, through a carbon atom, to the 2nd position of the indole ring and m represents an integer of zero to 3.
Claim 2
Dependent Claim
144 words
A photographic recording material which comprises, on a support, a silver emulsion halide layer and a photographic layer comprising an indole compound represented by the general formula (I): ##STR8## wherein PUG represents a photographically useful group, Ball represents an organic group which has enough molecular weight and/or disposition to render the compound non-diffusible during processing of said photographic recording material with an alkaline medium and wherein said Ball contains a nitrogen atom which is directly attached to the 5th or 6th position an the iodole ring of said indole compound, said Ball being a succinimide group or a phthalimide group, R 1 represents a halogen atom or a monovalent organic group, R 2 represents a hydrogen atom or a low molecular group attached, through a carbon atom, to the 2nd position of the indole ring and m represents an integer of zero to 3.
Claim 3
Dependent Claim
21 words
A photographic recording material according to claim 1, wherein R 1 is a halogen atom, an alkyl or an alkoxy group.
Claim 4
Dependent Claim
34 words
A photographic recording material according to claim 2, wherein R 1 is a halogen atom, an alkyl group having 1 to 3 carbon atoms or an alkoxy group having 1 to 3 carbon atoms.
Claim 5
Dependent Claim
20 words
A photographic recording material according to claim 1, wherein R 2 is group having from 1 to 9 carbon atoms.
Claim 6
Dependent Claim
70 words
A photographic recording material according to claim 4, wherein R 2 is an alkyl group having from 1 to 9 carbon atoms, a phenyl group having 1 to 9 carbon atoms or a ##STR9## group, wherein R 3 and R 4 independently represent a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms and provided that said R 3 and R 4 may form a ring.
Claim 7
Dependent Claim
57 words
A photographic recording material according to claim 4, wherein R 2 is selected from a phenyl group which is unsubstituted or substituted by a halogen or from the group consisting of an acetylamide group, a methyl sulfonamide group, a nitro group, a carboxy group, a sulfo group, a methane-sulfone group, an alkyl group and an alkoxy group.
Claim 8
Dependent Claim
22 words
A photographic recording material according to claim 1, wherein said PUG is a group which is capable of causing a photographic effect.
Claim 9
Dependent Claim
41 words
A photographic recording material according to claim 1, wherein said PUG is selected from a group consisting of silver-complex forming agents, silver halide-solving agent, hardeners, fogging agents, anti-foggants, developers, development inhibitors development accelerators, bleach restrainers, bleach accelerators, dyes and dye precursors.
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) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |