US4585695A
Expired / Lapsed
US
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Electrically conductive polypyrrole article
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1984-09-20
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Granted: 1986-04-29
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Expires: 2004-09-20
Abstract
Abstract An oriented electrically conductive polypyrrole article having a degree of orientation of at least 40% in at least one direction; an electrically conductive polypyrrole article having an electrical conductivity of at least 100 S/cm.; a process for producing an electrically conductive polypyrrole having improved electrical conductivity and stretchability, which comprises electrolytically polymerizing pyrrole and/or a pyrrole derivative in an electrolytic solution comprising an electrolyte and a solvent, said polymerization being carried out at a temperature of 0 DEG to -50 DEG C.; and a process for producing an electrically conductive polypyrrole article having improved electrical conductivity, which comprises stretching an electrically conductive polypyrrole article in at least one direction.
Inventors
- 👤 Makoto Ogasawara
- 👤 Kazutoshi Funahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:47
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C08G61/124; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
An oriented electrically conductive polypyrrole article of doped polypyrrole having a degree of orientation of at least 40% in at least one direction wherein said polypyrrole is selected from the group consisting of a homopolymer of pyrrole, a homopolymer of a pyrrole derivative, copolymers of pyrrole and copolymers of said pyrrole derivatives, wherein said pyrrole derivatives are selected from the group consisting of N-C 1-5 alkyl derivatives, N-phenyl derivatives, substitution products of the N-phenyl derivatives, and derivatives obtained by substituting a C 1-5 alkyl or alkoxy group at the beta-position of the pyrrole ring.
Claim 2
Dependent Claim
94 words
An oriented electrically conductive polypyrrole article of doped polypyrrole having a degree of orientation of at least 40% in at least one direction wherein said polypyrrole is selected from the group consisting of a homopolymer of pyrrole, a homopolymer of a pyrrole derivative, copolymers of pyrrole and copolymers of said pyrrole derivatives, wherein said pyrrole derivatives are selected from the group consisting of N-C 1-5 alkyl derivatives, N-phenyl derivatives, substitution products of the N-phenyl derivatives, and derivatives obtained by substituting a C 1-5 alkyl or alkoxy group at the beta-position of the pyrrole ring.
Claim 3
Dependent Claim
43 words
The electrically conductive polypyrrole article of claim 1 wherein the dopant is a halogen anion, a peracid anion, a protonic acid anion, an anion from a Lewis acid, an anion from an organic carboxylic acid, or an anion from an organic sulfonic acid.
Claim 4
Dependent Claim
21 words
The electrically conductive polypyrrole article of claim 1 which is in the form of a film, a rod or a filament.
Claim 5
Dependent Claim
23 words
The electrically conductive polypyrrole article of claim 1 which has a degree of orientation of at least 70% in at least one direction.
Claim 6
Dependent Claim
23 words
The electrically conductive polypyrrole article of claim 1 which has a degree of orientation of at least 60% in at least one direction.
Claim 7
Dependent Claim
21 words
The electrically conductive polypyrrole article of claim 1 or 2 wherein the electrically conductive polypyrrole is electrochemically synthesized and simultaneously doped.
Claim 8
Dependent Claim
32 words
The electrically conductive polypyrrole article of claim 1 or 5 wherein the electrically conductive polypyrrole is obtained by exchanging the dopant of an electrochemically synthesized and simultaneously doped polypyrrole with another dopant.
Claim 9
Dependent Claim
86 words
An electrically conductive doped polypyrrole article having an electrical conductivity of at least 200 S/cm wherein said polypyrrole is selected from the group consisting of a homopolymer of pyrrole, a homopolymer of a pyrrole derivative, copolymers of pyrrole and copolymers of said pyrrole derivatives, wherein said pyrrole derivatives are selected from the group consisting of N-C 1-5 alkyl derivatives, N-phenyl derivatives, substitution products of the N-phenyl derivatives, and derivatives obtained by substituting a C 1-5 alkyl or alkoxy group at the beta-position of the pyrrole ring.
Claim 10
Dependent Claim
86 words
An electrically conductive doped polypyrrole article having an electrical conductivity of at least 200 S/cm wherein said polypyrrole is selected from the group consisting of a homopolymer of pyrrole, a homopolymer of a pyrrole derivative, copolymers of pyrrole and copolymers of said pyrrole derivatives, wherein said pyrrole derivatives are selected from the group consisting of N-C 1-5 alkyl derivatives, N-phenyl derivatives, substitution products of the N-phenyl derivatives, and derivatives obtained by substituting a C 1-5 alkyl or alkoxy group at the beta-position of the pyrrole ring.
Claim 11
Dependent Claim
18 words
The electrically conductive doped polypyrrole article of claim 8 having an electrical conductivity of at least 300 S/cm.
Claim 12
Dependent Claim
23 words
The electrically conductive polypyrrole article of any one of claims 1, 5, 3 or 8 wherein the polypyrrole is a homopolymer of pyrrole.
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) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |