US5196144A
Expired / Lapsed
US
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Electrically conductive polyaniline
Assignee: CALIFORNIA A CORP OF, University of, Regents of
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Filing: 1988-10-31
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Granted: 1993-03-23
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Expires: 2008-10-31
Abstract
Abstract Polyanilines are provided that are soluble and that form crystaline solids upon precipitation. The solid polyanilines are electrically conductive, soluble, and can be fabricated into various shaped articles for use in, for example, batteries, electrodes, photovoltaic cells, semiconductor devices and the like.
Inventors
- 👤 Paul Smith
- 👤 Alan J. Heeger
- 👤 Yong Cao
- 👤 Jin-Chih Chiang
- 👤 Alejandro Andreatta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:40
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; C; C08; C08G; C08G73/00; C08G73/02; C08G73/026; C08G73/0266; H10; H10K; H10K85/00; H10K85/10; H10K85/111; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/549; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
79 words
A solid composition comprising an acid soluble, electrically conductive polyaniline having a minimum molecular weight of at least about 5,000 that is from about 10% to 90% crystalline, said polyaniline comprised of monomer units in any of their oxidation states which allow for the composition to be electrically conductive, the monomer units having the structure: ##STR2## wherein R 1 is H or alkyl, and R 2 -R 6 are, independently, H, alkyl, aralalkyl, alkaryl, hydroxy, alkyloxy, halogen or nitro.
Claim 2
Dependent Claim
79 words
A solid composition comprising an acid soluble, electrically conductive polyaniline having a minimum molecular weight of at least about 5,000 that is from about 10% to 90% crystalline, said polyaniline comprised of monomer units in any of their oxidation states which allow for the composition to be electrically conductive, the monomer units having the structure: ##STR2## wherein R 1 is H or alkyl, and R 2 -R 6 are, independently, H, alkyl, aralalkyl, alkaryl, hydroxy, alkyloxy, halogen or nitro.
Claim 3
Dependent Claim
48 words
The solid composition of claim 1 wherein R 1 -R 6 are H, and the oxidation state of the monomer units of the polyaniline result in the polyaniline taking a form selected from the group consisting of the emeraldine salt form, the emeraldine base form, and leucoemeraldine form.
Claim 4
Dependent Claim
17 words
The solid composition of claim 1 wherein said polyaniline has a minimum molecular weight of about 10,000.
Claim 5
Dependent Claim
21 words
The solid composition of claim 1 wherein the monomer units consist essentially of aniline and the composition consists essentially of polyaniline.
Claim 6
Dependent Claim
18 words
The solid composition of claim 1 wherein the composition has a minimum electrical conductivity of about 10 S/cm.
Claim 7
Dependent Claim
10 words
A shaped article produced from the composition of claim 1.
Claim 8
Dependent Claim
14 words
The shaped article of claim 6 which is in the form of a film.
Claim 9
Dependent Claim
14 words
The shaped article of claim 6 which is in the form of a fiber.
Claim 10
Dependent Claim
14 words
The shaped article of claim 6 which is in the form of a tape.
Claim 11
Dependent Claim
14 words
The shaped article of claim 6 which is in the form of a rod.
Claim 12
Dependent Claim
10 words
A shaped article produced from the composition of claim 4.
Claim 13
Dependent Claim
14 words
The shaped article of claim 11 which is in the form of a fiber.
Claim 14
Dependent Claim
14 words
The shaped article of claim 11 which is in the form of a film.
Claim 15
Dependent Claim
14 words
The shaped article of claim 11 which is in the form of a tape.
Claim 16
Dependent Claim
14 words
The shaped article of claim 11 which is in the form of a rod.
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) | 1996-03-22 | 1996-09-21 | 1997-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-22 | 2000-09-21 | 2001-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-22 | 2004-09-21 | 2005-03-23 | $7700.00 | Window Closed / Lapsed |