EP0104726A2
Expired / Lapsed
EP
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Electrically conductive polymer composition
Assignee: Raychem Ltd
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Filing: 1983-08-01
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Granted: —
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Expires: 2003-08-01
Abstract
Abstract Electrically conductive polymers, especially polypyrroles, are formed with a charged polymeric dopant suplying the necessary counter -ions to stabilise the charged conductive form of the conductive polymer. The physical properties of the conductive polymer can thus be usefully modifed in ways different from those achieved by non-polymeric dopants or by forming the conductive polymers in pre-existing bodies of non dopant (i.e. uncharged) polymers.
Inventors
- 👤 Malcolm Gordon Cross
- 👤 Robert Lines
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 11:44
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127; H01B1/128; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
21 words
A polymer composition comprising an electrically conductive polymer associated with a polymeric dopant which stabilises the polymer in antelectrically conductive state.
Claim 2
Dependent Claim
21 words
A polymer composition comprising an electrically conductive polymer associated with a polymeric dopant which stabilises the polymer in antelectrically conductive state.
Claim 3
Dependent Claim
19 words
A composition according to claim 1, wherein the conductive polymer is positively charged and the dopant is negatively charged.
Claim 4
Dependent Claim
19 words
A composition according to claim 2, wherein the conductive polymer is a polymer of aniline or a substituted aniline.
Claim 5
Dependent Claim
19 words
A composition according to claim 2, wherein the conductive polymer is a polymer of pyrrole or a substituted pyrrole.
Claim 6
Dependent Claim
18 words
A composition according to claim 2, 3 or 4, wherein the polymeric dopant is an ionisable polysul- phonate.
Claim 7
Dependent Claim
12 words
A composition according to claim 5, wherein the dopant is sulphonated polyethylene.
Claim 8
Dependent Claim
15 words
A composition according to claim 5, wherein the dopant is sulphonated styrene (hydrogenated) butadiene copolymer.
Claim 9
Dependent Claim
14 words
A self-supporting film of a composition according to any of claims 1 to 7.
Claim 10
Dependent Claim
33 words
A self-supporting film according to claim 8 having a greater concentration of the conductive polymer at one of its surfaces and a greater concentration of the dopant at the other of its surfaces.
Claim 11
Independent Claim
32 words
A method of preparing an electrically conductive polymer, comprising polymerising an appropriate monomer in the presence of a polymeric dopant capable of stabilising the electrically conductive polymer in an electrically conductive state.
Claim 12
Independent Claim
32 words
A method of preparing an electrically conductive polymer, comprising polymerising an appropriate monomer in the presence of a polymeric dopant capable of stabilising the electrically conductive polymer in an electrically conductive state.
Claim 13
Dependent Claim
30 words
A method according to claim 10 wherein the conductive polymer requires oxidation to bring it-into an electrically conductive state, and such oxidation is carried out during and/or after the polymerisation.
Claim 14
Dependent Claim
22 words
A method according to claim 11, wherein the oxidation is effected by means of an oxidising agent bonded to the polymeric dopant.
References Cited (Backward Citations)
No citation records indexed.
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