US5134177A
Expired / Lapsed
US
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Conducting composite polymer beads and methods for preparation and use thereof
Assignee: University of Southern California
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Filing: 1991-05-02
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Granted: 1992-07-28
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Expires: 2011-05-02
Abstract
Abstract Composite conducting polymer particles are described, wherein surface-treated supporting polymer particles having a charged surface of a first polarity are provided with a coating of conducting polymer of opposite polarity applied to the surface thereof. Suitably, the supporting insulating polymer particles are subjected to a surface treatment which introduces charged moieties thereon. The conducting polymer may be doped with at least one dopant to improve its conductivity. The novel particles have desirable rheological properties, and particularly when admixed with at least one processible polymer may be used to prepare products comprising conductive polymers in a particularly facile manner.
Inventors
- 👤 John J. Aklonis
- 👤 Gia Y. Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:15
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02; C08G73/026; C08G73/0266; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; Y; Y10; Y10S; Y10S525/00; Y10S525/902; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
33 words
A composite conducting polymer particle, comprising a surface-treated supporting polymer particle having a charged surface of a negative polarity; and a coating of conducting polymer of positive polarity applied to the surface thereof.
Claim 2
Dependent Claim
33 words
A composite conducting polymer particle, comprising a surface-treated supporting polymer particle having a charged surface of a negative polarity; and a coating of conducting polymer of positive polarity applied to the surface thereof.
Claim 3
Dependent Claim
26 words
A composite conducting polymer particle according to claim 1, wherein the surface of the surface-treated supporting polymer particle is substituted with at least one charged moiety.
Claim 4
Dependent Claim
30 words
A composite conducting polymer particle according to claim 2, wherein the charged moiety is selected from the group consisting of carboxylic, sulfonic, sulfinic, phosphoric, phosphinic, nitronic, arsenic and boronic groups.
Claim 5
Dependent Claim
21 words
A composite conducting polymer particle according to claim 1, wherein the surface-treated supporting polymer particle is a sulfonated crosslinked polystyrene bead.
Claim 6
Dependent Claim
48 words
A composite conducting polymer particle according to claim 1, wherein the conducting polymer is selected from the group consisting of unsubstituted and substituted derivatives of p-phenylene and p-phenylene sulfide, polyphenylene vinylenes, polypyrroles, polythiophenes, polyazulenes, polyfurans, polyanilines, polyindoles, polycarbazoles, polyazepines, polybenzidines, polyazomethines, phthalocyaninatometal polymers and bridge-stacked phthalocyanines and metallophthalocyanines.
Claim 7
Dependent Claim
15 words
A composite conducting polymer particle according to claim 1, wherein the conducting polymer is doped.
Claim 8
Dependent Claim
91 words
A composite conducting polymer particle according to claim 1, wherein the dopant is selected from the group consisting of PF 6 - , ClO 4 - , AsF 6 - , BF 4 - , SbF 6 - , SbCl 6 - , SO 3 CF 3 - , NO 3 - , POF 4 - , CN - , F - , Cl - , Br - , I - , I 3 - , SiF 5 - , HSO 4 - , acetate, benzoate, tosylate, brosylate and mixtures thereof.
Claim 9
Dependent Claim
19 words
A composite conducting polymer particle according to claim 1, comprising a sulfonated monodisperse crosslinked polystyrene bead coated with polyaniline.
Claim 10
Independent Claim
43 words
A method for preparing a composite conducting polymer particle, comprising: treating a particle comprising a supporting polymer so as to introduce a surface charge of a negative polarity on a surface thereof; and coating said particle with a conducting polymer of positive polarity.
Claim 11
Independent Claim
43 words
A method for preparing a composite conducting polymer particle, comprising: treating a particle comprising a supporting polymer so as to introduce a surface charge of a negative polarity on a surface thereof; and coating said particle with a conducting polymer of positive polarity.
Claim 12
Dependent Claim
22 words
A method according to claim 9, wherein said treating comprises substituting the surface of the particle with at least one charged moiety.
Claim 13
Dependent Claim
27 words
A method according to claim 10, wherein said charged moiety is selected from the group consisting of carboxylic, sulfonic, sulfinic, phosphoric, phosphinic, nitronic, arsenic and boronic groups.
Claim 14
Dependent Claim
25 words
A method according to claim 9, further comprising: treating the coated polymer with at least one dopant to increase the conductivity of the conducting polymer.
Claim 15
Dependent Claim
88 words
A method according to claim 12, wherein the dopant is selected from the group consisting of PF 6 - , ClO 4 - , AsF 6 - , BF 4 - , SbF 6 - , SbCl 6 - , SO 3 CF 3 - , NO 3 - , POF 4 - , CN - , F - , Cl - , Br - , I - , I 3 - , SiF 5 - , HSO 4 - , acetate, benzoate, tosylate, brosylate and mixtures thereof.
Claim 16
Dependent Claim
29 words
A method according to claim 9, wherein the particle comprising a supporting insulating polymer is a monodisperse polystyrene bead and said treating comprises sulfonating the surface of the bead.
Claim 17
Dependent Claim
18 words
A method according to claim 14, wherein said sulfonating comprises treatment with SO 3 above fuming sulfuric acid.
Claim 18
Dependent Claim
45 words
A method according to claim 9, wherein the conducting polymer is selected from the group consisting of unsubstituted and substituted derivatives of p-phenylene and p-phenylene sulfide, polyphenylene vinylenes, polypyrroles, polythiophenes, polyazulenes, polyfurans, polyanilines, polyindoles, polycarbazoles, polyazepines, polybenzidines, polyazomethines, phthalocyaninatometal polymers and bridge-stacked phthalocyanines and metallophthalocyanines.
Claim 19
Independent Claim
64 words
A method for preparing a product comprising a conducting polymer, said method comprising: coating at least one conducting polymer having a positive polarity onto surface-treated supporting polymer particles having a charged surface of negative polarity, to provide composite conducting polymer particles; admixing said composite conducting polymer particles with at least one processible polymer to form a mixture; and forming said mixture into said product.
Claim 20
Independent Claim
64 words
A method for preparing a product comprising a conducting polymer, said method comprising: coating at least one conducting polymer having a positive polarity onto surface-treated supporting polymer particles having a charged surface of negative polarity, to provide composite conducting polymer particles; admixing said composite conducting polymer particles with at least one processible polymer to form a mixture; and forming said mixture into said product.
Claim 21
Dependent Claim
17 words
A method according to claim 16, wherein the surface-treated supporting polymer particles comprise sulfonated monodisperse polystyrene beads.
Claim 22
Dependent Claim
25 words
A method according to claim 17, further comprising: doping said conducting polymer with at least one dopant to increase the conductivity of the conducting polymer.
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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 |