US5133841A
Expired / Lapsed
US
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Process for manufacturing an electrically conductive polymer in the form of a film
Assignee: Komatsu Ltd
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Filing: 1988-07-22
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Granted: 1992-07-28
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Expires: 2008-07-22
Abstract
Abstract A process is described for producing a conductive polymer of an aromatic amine for the purpose of forming a dense and relatively thick film having a uniform, smooth surface as well as good adhesion strength and film strength. This process comprises dissolving or dispersing an aromatic amine compound in a substituted or unsubstituted aromatic sulfonic acid solution and conducting electrolytic oxidative polymerization, said aromatic sulfonic acid having a molecular weight up to 300 and a relatively large ionic radius and being dissolved in a concentration of 0.01 to 5 mol/1.
Inventors
- 👤 Shinji Higo
- 👤 Minoru Orita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:33
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/1067; C08G73/1071
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
46 words
A process for manufacturing an electrically conductive polymer in the form of film which comprises dissolving or dispersing in a fluoride ion free solvent an aromatic amine compound and a substituted or unsubstituted aromatic sulfonic acid and subjecting said solution or dispersion to electrolytic oxidative polymerization.
Claim 2
Dependent Claim
46 words
A process for manufacturing an electrically conductive polymer in the form of film which comprises dissolving or dispersing in a fluoride ion free solvent an aromatic amine compound and a substituted or unsubstituted aromatic sulfonic acid and subjecting said solution or dispersion to electrolytic oxidative polymerization.
Claim 3
Dependent Claim
21 words
A process as set forth in claim 1, wherein said solvent is selected from the groups consisting of water and alcohols.
Claim 4
Dependent Claim
24 words
A process as set forth in claim 2, wherein said sulfonic acid solution has an acid concentration of 0.01 to 5 mols per liter.
Claim 5
Dependent Claim
26 words
A process as set forth in claim 1, wherein said aromatic sulfonic acid has a molecular weight not exceeding 300, and a relatively large ionic radius.
Claim 6
Dependent Claim
27 words
A process as set forth in claim 1, wherein said aromatic amine compound is selected from the aromatic amines and diamines, and derivatives of aromatic amine compounds.
Claim 7
Dependent Claim
15 words
The process as claimed in claim 1, wherein said aromatic sulfonic acid is benzenesulfonic acid.
Claim 8
Dependent Claim
59 words
A process for manufacturing an electrically conductive polymer in the form of a film comprising a first step of dissolving or dispersing in a fluoride ion free solvent an aromatic amine compound and an acid consisting essentially of a substituted or unsubstituted aromatic sulfonic acid and a second step of subjecting said solution or dispersion to electrolytic oxidative polymerization.
Claim 9
Dependent Claim
59 words
A process for manufacturing an electrically conductive polymer in the form of a film comprising a first step of dissolving or dispersing in a fluoride ion free solvent an aromatic amine compound and an acid consisting essentially of a substituted or unsubstituted aromatic sulfonic acid and a second step of subjecting said solution or dispersion to electrolytic oxidative polymerization.
Claim 10
Dependent Claim
14 words
The process as set forth in claim 7, wherein said solvent is substantially polar.
Claim 11
Dependent Claim
21 words
A process as set forth in claim 7, wherein said solvent is selected from the group consisting of water and alcohol.
Claim 12
Dependent Claim
26 words
A process as set forth in claim 7, wherein said aromatic sulfonic acid has a molecular weight not exceeding 300, and a relatively large ionic radius.
Claim 13
Dependent Claim
27 words
A process as set forth in claim 7, wherein said aromatic amine compound is selected from the aromatic amines and diamines, and derivatives of aromatic amine compounds.
Claim 14
Dependent Claim
24 words
A process as set forth in claim 7, wherein said sulfonic acid solution has an acid concentration of 0.01 to 5 mols per liter.
Claim 15
Dependent Claim
64 words
A process for manufacturing an electrically conductive polymer in the form of a film which comprises dissolving or dispersing an aromatic amine compound in a fluoride ion free solution of a substituted or unsubstituted aromatic sulfonic acid selected from the group consisting of p-toluene sulfonic acid, M-nitrobenzene sulfonic acid, napthyl-1-sulfonic acid and naphthyl-2-sulfonic acid, and subjecting said solution or dispersion to electrolytic oxidative polymerization.
Claim 16
Dependent Claim
64 words
A process for manufacturing an electrically conductive polymer in the form of a film which comprises dissolving or dispersing an aromatic amine compound in a fluoride ion free solution of a substituted or unsubstituted aromatic sulfonic acid selected from the group consisting of p-toluene sulfonic acid, M-nitrobenzene sulfonic acid, napthyl-1-sulfonic acid and naphthyl-2-sulfonic acid, and subjecting said solution or dispersion to electrolytic oxidative polymerization.
References Cited (Backward Citations)
US4629540A
Cited
US5002700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-28 | 1996-01-27 | 1996-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-28 | 2000-01-27 | 2000-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-28 | 2004-01-27 | 2004-07-28 | $7700.00 | Window Closed / Lapsed |