US4490509A
Expired / Lapsed
US
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Poly-(2,5-thiophendiyl)arsenic pentafluoride complexes
Assignee: Bayer AG
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Filing: 1982-07-08
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Granted: 1984-12-25
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Expires: 2002-07-08
Abstract
Abstract Reaction products of poly-(2,5-thiophendiyl) and arsenic pentafluoride. The black complexes are insoluble solids. Due to their high electric conductivity they can be used as conductors of electric currents. Suitable applications are, e.g., sheet-form conductors for heating systems or electrodes for electrical batteries.
Inventors
- 👤 Gerhard Kossmehl
- 👤 Georg Chatzitheodorou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:35
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C08G61/126; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
Poly-(2,5-thiophendiyl) doped with arsenic pentafluoride.
Claim 2
Dependent Claim
5 words
Poly-(2,5-thiophendiyl) doped with arsenic pentafluoride.
Claim 3
Dependent Claim
50 words
A process for the production of poly-(2,5-thiophendiyl) doped with arsenic pentafluoride, wherein poly-(2,5-thiophendiyl) or 2,2'-dithienyl or thiophene or mixtures of 2,2'-dithienyl and thiophene is/are treated with gaseous arsenic pentafluoride in the absence of oxygen and moisture at +10° to +30° C. under pressures of from 0.1 mbar to atmospheric pressure.
Claim 4
Dependent Claim
50 words
A process for the production of poly-(2,5-thiophendiyl) doped with arsenic pentafluoride, wherein poly-(2,5-thiophendiyl) or 2,2'-dithienyl or thiophene or mixtures of 2,2'-dithienyl and thiophene is/are treated with gaseous arsenic pentafluoride in the absence of oxygen and moisture at +10° to +30° C. under pressures of from 0.1 mbar to atmospheric pressure.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |