US4789748A
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US
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Process for preparing electrically conductive poly(isothianaphthene) from 1,3-dihydroisothianaphthene
Assignee: Honeywell International Inc
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Filing: 1985-10-17
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Granted: 1988-12-06
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Expires: 2005-10-17
Abstract
Abstract A process for preparing electrically conductive poly(isothianaphthene) from 1,3-dihydroisothianaphthene by exposing an intimate mixture of 1,3-dihydroisothianaphthene and a oxidant/dopant such as ferric chloride to oxygen.
Inventors
- 👤 Kwan-Yue A. Jen
- 👤 Ronald L. Elsenbaumer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:14
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/121; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
23 words
A process for preparing conductive poly(isothianaphthene) which comprises exposing 1,3-poly(isothianaphthene) to an oxidizing/doping agent selected from the group consisting of oxygen and oxidant/dopants.
Claim 2
Dependent Claim
23 words
A process for preparing conductive poly(isothianaphthene) which comprises exposing 1,3-poly(isothianaphthene) to an oxidizing/doping agent selected from the group consisting of oxygen and oxidant/dopants.
Claim 3
Dependent Claim
17 words
A process according to claim 1 wherein said dihydroisothianaphthene and said oxidizing agent are contacted in solution.
Claim 4
Dependent Claim
25 words
A process according to claim 1 wherein said dihydroisothianaphthene is contacted with one or more oxidant/dopants alone or in combination with a gas comprising oxygen.
Claim 5
Dependent Claim
23 words
A process according to claim 3 wherein said dihydroisothianaphthene is contacted with a combination of a gas containing oxygen and a chemical oxidant/dopant.
Claim 6
Dependent Claim
11 words
A process according to claim 4 wherein said gas is air.
Claim 7
Dependent Claim
39 words
A process according to claim 4 wherein said oxidising/doping agent is selected from the group consisting of Fe(III) salts, NO + salts, MoOCl 4 , MoCl 5 , PCl 5 , POCl 3 and AlCl 3 /CuCl 2 .
Claim 8
Dependent Claim
51 words
A process according to claim 6 wherein said oxidising/doping agent is selected from the group consisting of MoOCl 4 , MoCl 5 , PCl 5 , POCl 3 , MoOCl 4 , Fe(ClO 4 ) 3 , FeCl 3 , NOBF 4 , NOSbF 6 and NOCF 3 SO 3 .
Claim 9
Dependent Claim
37 words
A process according to claim 7 wherein said oxidising/doping agent is selected from the group consisting of MoOCl 4 , NOBF 4 , NOPF 6 , NOSbF 6 , NOCF 3 SO 3 and FeCl 3 .
Claim 10
Dependent Claim
23 words
A process according to claim 8 wherein said oxidising/doping agent is selected from the group consisting of FeCl 3 and NOSbF 6 .
References Cited (Backward Citations)
US4375427A
Cited
US4462929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-06 | 1992-06-06 | 1992-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-06 | 1996-06-06 | 1996-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-06 | 2000-06-06 | 2000-12-06 | $7700.00 | Window Closed / Lapsed |