US4447583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidized polyacetylene and a process for the preparation thereof
Assignee: Bayer AG
•
Filing: 1982-06-10
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Granted: 1984-05-08
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Expires: 2002-06-10
Abstract
Abstract Increasing the electrical conductivity of polyacetylene by partial oxidation (doping) with a compound of trivalent iron or of trivalent cobalt.
Inventors
- 👤 Jurgen Hocker
- 👤 Rolf Dhein
- 👤 Rudolf Merten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:30
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/125; H10; H10K; H10K85/00; H10K85/10; H10K85/141; H10K85/143; H10K30/00; H10K30/50; H10K71/00; H10K71/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
24 words
A process for increasing the electrical conductivity of polyacetylene, said process comprising partially oxidizing polyacetylene with a compound of trivalent iron or trivalent cobalt.
Claim 2
Dependent Claim
24 words
A process for increasing the electrical conductivity of polyacetylene, said process comprising partially oxidizing polyacetylene with a compound of trivalent iron or trivalent cobalt.
Claim 3
Dependent Claim
35 words
A process for increasing the electrical conductivity of polyacetylene, said process comprising partially oxidizing polyacetylene in a suspension thereof with a compound of trivalent iron or trivalent cobalt which is soluble in the suspending agent.
Claim 4
Dependent Claim
35 words
A process for increasing the electrical conductivity of polyacetylene, said process comprising partially oxidizing polyacetylene in a suspension thereof with a compound of trivalent iron or trivalent cobalt which is soluble in the suspending agent.
Claim 5
Dependent Claim
37 words
A process for increasing the electrical conductivity of polyacetylene, said process comprising partially oxidizing burr-form polyacetylene particles in a suspension thereof with a compound of trivalent iron or trivalent cobalt which is soluble in the suspending agent.
Claim 6
Dependent Claim
37 words
A process for increasing the electrical conductivity of polyacetylene, said process comprising partially oxidizing burr-form polyacetylene particles in a suspension thereof with a compound of trivalent iron or trivalent cobalt which is soluble in the suspending agent.
Claim 7
Dependent Claim
13 words
Polyacetylene having an increased electrical conductivity produced by the process of claim 1.
Claim 8
Dependent Claim
21 words
An electrical conductor, semiconductor or photoconductor made from a partially oxidized polyacetylene produced in accordance with the process of claim 1.
References Cited (Backward Citations)
US4204216A
Cited
US4230604A
Cited
US4406825A
Cited
EP0044935A1
Cited
EP0045852A1
Cited
EP0071082A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-08 | 1987-11-07 | 1988-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-08 | 1991-11-07 | 1992-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-08 | 1995-11-07 | 1996-05-08 | $7700.00 | Window Closed / Lapsed |