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US4394304A
Expired / Lapsed
US
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Electrically conducting polymer blends
Assignee: Massachusetts Institute of Technology
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Filing: 1982-01-29
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Granted: 1983-07-19
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Expires: 2002-01-29
Abstract
Abstract A method of forming a conductive polymer comprising a blend of at least one processable polymer, polyacetylene and a dopant by impregnating the processable polymer with a Ziegler-Natta catalyst; exposing the impregnated polymer to acetylene gas, whereby substantially linear molecules of polyacetylene are formed within a matrix of the processable polymer; and introducing a dopant into the polyacetylene, whereby a conductive blend is formed.
Inventors
- 👤 Gary E. Wnek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:50
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; C; C08; C08F; C08F255/00; C08F255/02; C08F257/00; C08F257/02; C08F8/00; C08F8/18; C08F8/20; C08F8/22; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
71 words
A method of forming a conductive polymer comprising a blend of at least one processable polymer, polyacetylene and a dopant, the method comprising: (a) impregnating at least one processable polymer with a Ziegler-Natta catalyst; (b) exposing said impregnated polymer to acetylene gas, whereby substantially linear molecules of polyacetylene are formed within a matrix of the processable polymer; and (c) introducing a dopant into the polyacetylene, whereby a conductive blend is formed.
Claim 2
Independent Claim
71 words
A method of forming a conductive polymer comprising a blend of at least one processable polymer, polyacetylene and a dopant, the method comprising: (a) impregnating at least one processable polymer with a Ziegler-Natta catalyst; (b) exposing said impregnated polymer to acetylene gas, whereby substantially linear molecules of polyacetylene are formed within a matrix of the processable polymer; and (c) introducing a dopant into the polyacetylene, whereby a conductive blend is formed.
Claim 3
Dependent Claim
11 words
The process of claim 1 wherein the processable polymer is polyethylene.
Claim 4
Dependent Claim
11 words
The process of claim 1 wherein the processable polymer is polystyrene.
Claim 5
Dependent Claim
10 words
The process of claim 1 wherein the dopant is iodine.
Claim 6
Dependent Claim
14 words
The process of claim 1 wherein the catalyst is Ti(n-OBu) 4 /Et 3 Al.
Claim 7
Dependent Claim
27 words
The process of claim 1 wherein the step of impregnating the processable polymer with the catalyst further comprises impregnating said polymer with said catalyst at elevated temperatures.
Claim 8
Dependent Claim
14 words
The conductive polymer blend formed by the method of claim 1, 2 or 3.
Claim 9
Independent Claim
61 words
A method of forming a conductive polymer blend comprising polyethylene and iodine-doped polyacetylene, the method comprising: (a) impregnating polyethylene with a Ziegler-Natta catalyst of the formula Ti(n-OBu) 4 /Et 3 Al; (b) exposing said impregnated polyethylene to acetylene gas, whereby polyacetylene is formed within a matrix of polyethylene; and (c) introducing iodine into the polyacetylene, whereby a conductive polymer is formed.
Claim 10
Independent Claim
61 words
A method of forming a conductive polymer blend comprising polyethylene and iodine-doped polyacetylene, the method comprising: (a) impregnating polyethylene with a Ziegler-Natta catalyst of the formula Ti(n-OBu) 4 /Et 3 Al; (b) exposing said impregnated polyethylene to acetylene gas, whereby polyacetylene is formed within a matrix of polyethylene; and (c) introducing iodine into the polyacetylene, whereby a conductive polymer is formed.
Claim 11
Dependent Claim
10 words
The polymer blend formed by the method of claim 8.
Claim 12
Independent Claim
61 words
A method of forming a conductive polymer blend comprising polystyrene and iodine-doped polyacetylene, the method comprising: (a) impregnating polystyrene with a Ziegler-Natta catalyst of the formula Ti(n-OBu) 4 /Et 3 Al; (b) exposing said impregnated polystyrene to acetylene gas, whereby polyacetylene is formed within a matrix of polystyrene; and (c) introducing iodine into the polystyrene, whereby a conductive polymer is formed.
Claim 13
Independent Claim
61 words
A method of forming a conductive polymer blend comprising polystyrene and iodine-doped polyacetylene, the method comprising: (a) impregnating polystyrene with a Ziegler-Natta catalyst of the formula Ti(n-OBu) 4 /Et 3 Al; (b) exposing said impregnated polystyrene to acetylene gas, whereby polyacetylene is formed within a matrix of polystyrene; and (c) introducing iodine into the polystyrene, whereby a conductive polymer is formed.
Claim 14
Dependent Claim
10 words
The polymer blend formed by the method of claim 10.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |