Patent US4499008A successfully refreshed from Google Patents.
US4499008A
Expired / Lapsed
US
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Method of making stable electrically conducting polymers
Assignee: Honeywell Inc
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Filing: 1983-12-09
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Granted: 1985-02-12
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Expires: 2003-12-09
Abstract
Abstract A method of making an electrically conducting polymer is disclosed which includes poly(N-alkyl 3',3 carbazolyl) at least a portion of which is doped with a compatible charge transfer acceptor to provide p-type electrical conductivity, and in which the alkyl group is one selected from the group consisting of ethyl and methyl or a combination thereof.
Inventors
- 👤 Stephen T. Wellinghoff
- 👤 Samson A. Jenekhe
- 👤 Thomas J. Kedrowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:51
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/128; C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C08G61/124; C08G73/00; C08G73/06; C08G73/0622; C08G73/0627; H01G; H01G9/00; H01G9/20; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
164 words
A method of making an electrically conducting polymer comprising the steps of: preparing a first liquid solution comprising a Grignard reagent of a quantity of monomer selected from the group consisting of N-methyl-3',3 dibromocarbazole and N-ethyl-3',3 dibromocarbazole or a combination thereof; preparing a second liquid solution of the remainder of the monomer; polymerizing a mixture of said first and said second solution in the presence of a suitable catalyst in an atmosphere inert to the reactants and products for sufficient time to produce a high molecular weight polymer; recovering said polymer; and complexing said polymer with a compatible charge transfer acceptor dopant wherein said charge transfer acceptor is selected from the group consisting of I 2 , Br 2 , Cl 2 , F 2 , TCNQ, DDQ, NO + BF 4 - , chloranil and protic acids selected from the group consisting of HI, HBr HCl, HF, H 2 SO 4 , HClO 4 , and CCl 3 COOH, or a combination thereof.
Claim 2
Independent Claim
164 words
A method of making an electrically conducting polymer comprising the steps of: preparing a first liquid solution comprising a Grignard reagent of a quantity of monomer selected from the group consisting of N-methyl-3',3 dibromocarbazole and N-ethyl-3',3 dibromocarbazole or a combination thereof; preparing a second liquid solution of the remainder of the monomer; polymerizing a mixture of said first and said second solution in the presence of a suitable catalyst in an atmosphere inert to the reactants and products for sufficient time to produce a high molecular weight polymer; recovering said polymer; and complexing said polymer with a compatible charge transfer acceptor dopant wherein said charge transfer acceptor is selected from the group consisting of I 2 , Br 2 , Cl 2 , F 2 , TCNQ, DDQ, NO + BF 4 - , chloranil and protic acids selected from the group consisting of HI, HBr HCl, HF, H 2 SO 4 , HClO 4 , and CCl 3 COOH, or a combination thereof.
Claim 3
Dependent Claim
26 words
The method according to claim 1 wherein said polymer is polymerized to a sufficient molecular weight to render it non-brittle and allow melt casting and extrusion.
Claim 4
Dependent Claim
31 words
The method according to claim 2 including the step of casting a film of said polymer from a suitable solvent or from the molten state onto a substrate prior to complexing.
Claim 5
Independent Claim
16 words
The method according to either of claims 1 or 2 wherein said alkyl group is methyl.
Claim 6
Independent Claim
17 words
The method according to either of claims 1 or 2 wherein said dopant is I 2 .
Claim 7
Dependent Claim
13 words
The method according to claim 3 wherein said dopant is I 2 .
Claim 8
Dependent Claim
21 words
The method according to claim 3 wherein said doping is accomplished by dipping said film in a solution of said dopant.
Claim 9
Independent Claim
17 words
The method according to either one of claims 3 or 7 wherein said alkyl group is methyl.
Claim 10
Independent Claim
18 words
The method according to either one of claims 3 or 7 wherein said dopant is I 2 .
Claim 11
Independent Claim
25 words
The method according to either of claims 1 or 2 wherein said first and said second solutions each comprise approximately one half of the monomer.
Claim 12
Independent Claim
24 words
The method according to either of claims 1 or 2 wherein said step of recovering said polymer comprises precipitating said polymer from a non-solvent.
Claim 13
Independent Claim
38 words
The method according to, either one of claims 1 or 2 wherein said complexing step includes dissolving said polymer in a solvent therefor containing an amount of said dopant and casting the doped resultant into a desired form.
Claim 14
Dependent Claim
13 words
The method according to claim 12 wherein said dopant is I 2 .
Claim 15
Independent Claim
25 words
The method according to either one of claims 1 or 2 wherein said complexing step includes exposing said polymer to a vapor containing said dopant.
Claim 16
Dependent Claim
13 words
The method according to claim 14 wherein said dopant is I 2 .
Claim 17
Dependent Claim
33 words
The method according to claim 11 wherein said complexing step includes dissolving said polymer in a solvent therefor containing an amount of said dopant and casting the complexed resultant into a desired form.
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) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |