US4620943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicarbazole-oxadiazole electroactive polymers
Assignee: Chevron USA Inc
•
Filing: 1984-10-25
•
Granted: 1986-11-04
•
Expires: 2004-10-25
Abstract
Abstract Tractable doped electroactive polymers, comprising recurring units of a 3,3'-N,N'-disubstituted-6,6'-bicarbazole-1,3,4-oxadiazole-2,5-diyl ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.
Inventors
- 👤 Peter Denisevich, Jr.
- 👤 Albert H. Schroeder
- 👤 Victor P. Kurkov
- 👤 Shigeto Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:39
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; C; C08; C08G; C08G73/00; C08G73/06; C08G73/08; C08L; C08L79/00; C08L79/04; C08L79/06; H01B1/127
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
60 words
A tractable electroactive polymer which comprises a charged polymer backbone of recurring units of a 3,3'-disubstituted-6,6'-bicarbazole-1,3,4-oxadiazole-2,5-diyl, wherein each carbazole nitrogen is substituted with lower alkyl of 1 to 6 carbon atoms or phenyl, and a sufficient concentration of a charge-compensating ionic dopant associated therewith, wherein the polymer backbone is capable of undergoing reversible oxidation to form the charged polymer backbone.
Claim 2
Dependent Claim
60 words
A tractable electroactive polymer which comprises a charged polymer backbone of recurring units of a 3,3'-disubstituted-6,6'-bicarbazole-1,3,4-oxadiazole-2,5-diyl, wherein each carbazole nitrogen is substituted with lower alkyl of 1 to 6 carbon atoms or phenyl, and a sufficient concentration of a charge-compensating ionic dopant associated therewith, wherein the polymer backbone is capable of undergoing reversible oxidation to form the charged polymer backbone.
Claim 3
Dependent Claim
13 words
The electroactive polymer according to claim 1, wherein the recurring unit is 3,3'-N,N'-diethyl-6,6'-bicarbazole-1,3,4-oxadiazole-2,5-diyl.
Claim 4
Dependent Claim
84 words
The electroactive polymer according to claim 1, wherein the charge-compensating ionic dopant is an anion selected from the group consisting of halogen ions, AsF 4 - , AsF 6 - , ClO 4 - , PF 6 - , SO 3 CF 3 - , BF 4 - , NO 3 - , POF 4 - , CN - , SiF 5 - , SbCl 6 - , SbF 6 - , HSO 4 - , acetate, benzoate, tosylate, or mixtures of said anions.
Claim 5
Dependent Claim
22 words
The electroactive polymer according to claim 1, wherein the polymer backbone has a molecular weight of from about 1,000 to about 250,000.
Claim 6
Dependent Claim
18 words
The electroactive polymer according to claim 4, wherein the polymer backbone has a molecular weight above about 10,000.
Claim 7
Dependent Claim
91 words
A tractable electroactive polymer which comprises a charged polymer backbone and charge-compensating ionic dopants associated therewith of the formula: ##STR2## wherein R is lower alkyl of 1 to 6 carbon atoms or phenyl; n is an integer from 2 to 1,000; d is an integer from 1 to 2,000; S is an integer from 1 to 3; and M is a charge-compensating ionic dopant of opposite electrical charge to the charge of the polymer backbone; wherein the polymer backbone is capable of undergoing reversible oxidation to form the charged polymer backbone.
Claim 8
Dependent Claim
91 words
A tractable electroactive polymer which comprises a charged polymer backbone and charge-compensating ionic dopants associated therewith of the formula: ##STR2## wherein R is lower alkyl of 1 to 6 carbon atoms or phenyl; n is an integer from 2 to 1,000; d is an integer from 1 to 2,000; S is an integer from 1 to 3; and M is a charge-compensating ionic dopant of opposite electrical charge to the charge of the polymer backbone; wherein the polymer backbone is capable of undergoing reversible oxidation to form the charged polymer backbone.
Claim 9
Dependent Claim
11 words
The electroactive polymer according to claim 6, wherein R is ethyl.
Claim 10
Dependent Claim
16 words
The electroactive polymer according to claim 6, wherein n is from about 5 to about 500.
Claim 11
Dependent Claim
16 words
The electroactive polymer according to claim 8, wherein n is from about 10 to about 300.
Claim 12
Dependent Claim
85 words
The electroactive polymer according to claim 6, wherein the charge-compensating ionic dopant M is an anion selected from the group consisting of halogen ions, AsF 4 - , AsF 6 - , ClO 4 - , PF 6 - , SO 3 CF 3 - , BF 4 - , NO 3 - , POF 4 - , CN - , SiF 5 - , SbCl 6 - , SbF 6 - , HSO 4 - , acetate, benzoate, tosylate, or mixtures of said anions.
Claim 13
Dependent Claim
28 words
A polymer of the formula: ##STR3## wherein R is lower alkyl of 1 to 6 carbon atoms or phenyl, and n is an integer from 2 to 1,000.
Claim 14
Dependent Claim
28 words
A polymer of the formula: ##STR3## wherein R is lower alkyl of 1 to 6 carbon atoms or phenyl, and n is an integer from 2 to 1,000.
Claim 15
Dependent Claim
10 words
The polymer according to claim 11, wherein R is ethyl.
References Cited (Backward Citations)
US3130183A
Cited
US3734893A
Cited
US4360644A
Cited
US4344869A
Cited
US4501686A
Cited
US4505840A
Cited
US4452725A
Cited
US4505843A
Cited
US4505841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |