Patent EP0189995A2 successfully refreshed from Google Patents.
EP0189995A2
Expired / Lapsed
EP
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Electro-conductive elastomeric materials
Assignee: University of Strathclyde
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Filing: 1986-01-20
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Granted: —
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Expires: 2006-01-20
Abstract
Abstract A method of manufacturing an electro-conductive elastomeric material comprises mixing together silicone polymer gum, graphitic carbon particles, curing and cross-linking agents in the presence of an oil having a carbon chain length of at least 16 and having a high degree of mesogenicity, together with a volatile additive in which the oil and gum dissolve and/or disperse miscibly. The volatile additive may be Toluene, Chloroform, Tetrahydrofuran, n-Hexane or SBP3.
Inventors
- 👤 John Jackson
- 👤 Seyed Abolhassan Angadjivand
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 13:51
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
63 words
A method of manufacturing an electro-conductive elastomeric material comprising the steps of mixing together silicone polymer gum, graphitic carbon particles, curing and cross-linking agents, and an oil having a carbon chain length of at least 16 and having a high degree of mesogenicity, characterised in that the mixture further comprises a volatile additive in which said oil and gum dissolve and/or disperse miscibly.
Claim 2
Independent Claim
63 words
A method of manufacturing an electro-conductive elastomeric material comprising the steps of mixing together silicone polymer gum, graphitic carbon particles, curing and cross-linking agents, and an oil having a carbon chain length of at least 16 and having a high degree of mesogenicity, characterised in that the mixture further comprises a volatile additive in which said oil and gum dissolve and/or disperse miscibly.
Claim 3
Dependent Claim
27 words
A method as claimed in claim 1, characterised in that the rate of volatilisation of said additive substantially equates with the rate of curing of the mixture.
Claim 4
Independent Claim
51 words
A method as claimed in either preceding claim, characterised in that the silicone polymer gum, the cross- linking agent, the oil and the volatile additive are initially mixed together to form a pre-mixture, and the graphitic carbon particles and curing agents are subsequently added to and mixed in with the premixture.
Claim 5
Dependent Claim
36 words
A method as claimed in claim 3, characterised in that the premixture contains only a portion of the volatile additive the remainder of which is added to the premixture in combination with the graphitic carbon particles.
Claim 6
Independent Claim
26 words
A method as claimed in any preceding claim, characterised in that the volatile additive is selected from the group comprising Toluene, Chloroform, Tetrahydrofuran, n-Hexane, and SBP3.
Claim 7
Independent Claim
32 words
A method as claimed in any one of claims 1-4, characterised in that the volatile additive is Toluene in the amount of at least 50 ml per 100 g silicone polymer gum.
Claim 8
Dependent Claim
41 words
A method as claimed in claim 1, characterised in that the mixture comprises 100 g silicone polymer gum, 70 g graphitic carbon particles, 5 g Silester O.S. crosslinker, 2 g DBTL curing agent, 20 g arachis oil and 70 ml toluene.
Claim 9
Dependent Claim
14 words
An electro-conductive elastomeric material when made by the method claimed in any preceding claim.
References Cited (Backward Citations)
No citation records indexed.
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