Patent US4556623A successfully refreshed from Google Patents.
US4556623A
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Electroconductive porous film and process for producing same
Assignee: Nitto Denko Corp
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Filing: 1984-12-31
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Granted: 1985-12-03
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Expires: 2004-12-31
Abstract
Abstract An electroconductive porous film is described comprising a porous film substrate having deposited thereon an electroconductive organic polymer containing an electron acceptor as a doptant, substantially comprising a linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III). ##STR1## wherein R 1 and R 2 , which are the same or different, each represents a hydrogen atom or an alkyl group.
Inventors
- 👤 Shohei Tamura
- 👤 Sadamitsu Sasaki
- 👤 Takeshi Sasaki
- 👤 Hisashi Ichinose
- 👤 Keiji Nakamoto
- 👤 Masao Abe
- 👤 Hitoshi Nakazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:15
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; C; C08; C08G; C08G73/00; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
67 words
An electroconductive porous film comprising a porous film substrate having deposited thereon an electroconductive organic polymer containing an electron acceptor as a dopant, said polymer being a substantially linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III) ##STR6## wherein R 1 and R 2 , which are the same or different, each represents a hydrogen atom or an alkyl group.
Claim 2
Dependent Claim
67 words
An electroconductive porous film comprising a porous film substrate having deposited thereon an electroconductive organic polymer containing an electron acceptor as a dopant, said polymer being a substantially linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III) ##STR6## wherein R 1 and R 2 , which are the same or different, each represents a hydrogen atom or an alkyl group.
Claim 3
Dependent Claim
23 words
An electroconductive porous film as in claim 1, wherein said electroconductive organic polymer has an electroconductivity of not less than 10 -6 S/cm.
Claim 4
Dependent Claim
21 words
An electroconductive porous film as in claim 1, wherein said film has an electroconductivity of not less than 10 -6 S/cm.
Claim 5
Dependent Claim
117 words
A process for producing an electroconductive porous film comprising a porous film substrate having deposited thereon an electroconductive organic polymer containing an electron acceptor as a dopant, comprising contacting a porous film substrate impregnated with an aniline compound or its water-soluble salt with a reaction medium containing a protonic acid and an oxidizing agent, oxidation-polymerizing the aniline compound or its water-soluble salt thereof to form and deposit on the porous film an electroconductive organic polymer being a substantially linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III). ##STR7## wherein R 1 and R 2 , which are the same or different, each represents a hydrogen atom or an alkyl group.
Claim 6
Dependent Claim
117 words
A process for producing an electroconductive porous film comprising a porous film substrate having deposited thereon an electroconductive organic polymer containing an electron acceptor as a dopant, comprising contacting a porous film substrate impregnated with an aniline compound or its water-soluble salt with a reaction medium containing a protonic acid and an oxidizing agent, oxidation-polymerizing the aniline compound or its water-soluble salt thereof to form and deposit on the porous film an electroconductive organic polymer being a substantially linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III). ##STR7## wherein R 1 and R 2 , which are the same or different, each represents a hydrogen atom or an alkyl group.
Claim 7
Dependent Claim
16 words
A process as in claim 4, wherein said aniline compound is aniline or an alkyl aniline.
Claim 8
Dependent Claim
13 words
A process as in claim 4, wherein said protonic acid is sulfuric acid.
Claim 9
Dependent Claim
13 words
A process as in claim 4, wherein said oxidizing agent is potassium dichromate.
Claim 10
Dependent Claim
27 words
A process as in claim 4, wherein the molar ratio of protonic acid/potassium dichromate in said reaction medium containing said oxidizing agent is not less than 1.2/1.
Claim 11
Dependent Claim
120 words
A process for producing an electroconductive porous film comprising a porous film substrate having deposited thereon an electroconductive organic polymer containing an electron acceptor as a dopant, comprising immersing the porous film substrate in a solution of an aniline compound or its water-soluble salt containing at least an equivalent of a protonic acid in contact with a positive electrode, electro-oxidation-polymerizing the aniline compound or its water-soluble salt to deposit on the porous film substrate an electroconductive organic polymer being a substantially linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III). ##STR8## wherein R 1 and R 2 , which are the same or different, each represents a hydrogen atom or an alkyl group.
Claim 12
Dependent Claim
120 words
A process for producing an electroconductive porous film comprising a porous film substrate having deposited thereon an electroconductive organic polymer containing an electron acceptor as a dopant, comprising immersing the porous film substrate in a solution of an aniline compound or its water-soluble salt containing at least an equivalent of a protonic acid in contact with a positive electrode, electro-oxidation-polymerizing the aniline compound or its water-soluble salt to deposit on the porous film substrate an electroconductive organic polymer being a substantially linear polymer having as a main repeating unit thereof a quinonediimine structure represented by formula (III). ##STR8## wherein R 1 and R 2 , which are the same or different, each represents a hydrogen atom or an alkyl group.
Claim 13
Dependent Claim
50 words
A process as in claim 9, wherein said solution of aniline compound or its water-soluble salt is electro-oxidative polymerized at an electrode potential of at least +1 V relative to the standard calomel electrode, at a current density in the range of 0.01 mA/cm 2 to 1 A/cm 2 .
Claim 14
Dependent Claim
16 words
A process as in claim 10, wherein said aniline compound is aniline or an alkyl aniline.
Claim 15
Dependent Claim
19 words
A process as in claim 10, wherein said electrode potential is in the range of 2 to 10 V.
Claim 16
Dependent Claim
23 words
A process as in claim 10, wherein said aniline solution contains the aniline compound at a concentration of 1 to 50% by weight.
References Cited (Backward Citations)
US4405704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1988-12-02 | 1989-06-03 | 1989-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-02 | 1993-06-03 | 1993-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-02 | 1997-06-03 | 1997-12-03 | $7700.00 | Window Closed / Lapsed |