EP0119815A2
Expired / Lapsed
EP
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Composition of matter incorporating polyether ether ketone
Assignee: AE PLC
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Filing: 1984-03-13
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Granted: —
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Expires: 2004-03-13
Abstract
Abstract A plain bearing comprising a steel backing, a sintered bronze interlayer and a lining of a material consisting of polyetherether ketone, polytetrafluoroethylene, graphite and bronze.
Inventors
- 👤 Glyndwr John Davies
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 13:07
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L71/00; Y; Y10; Y10S; Y10S525/00; Y10S525/934
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
17 words
A composition of matter comprising a mixture of polyether ketone together with polytetrafluoroethylene (PTFE) graphite and bronze.
Claim 2
Dependent Claim
17 words
A composition of matter comprising a mixture of polyether ketone together with polytetrafluoroethylene (PTFE) graphite and bronze.
Claim 3
Dependent Claim
28 words
A composition as claimed in Claim 1 characterised in that the polyether ketone is polyetherether- ketone (PEEK) and represents from 60% to 90% of the composition by weight.
Claim 4
Dependent Claim
28 words
A composition as claimed in Claim 1 or Claim 2 characterised in that the weight ratios of graphite, PTFE, and bronze are 1 : 3 : 4 respectively.
Claim 5
Dependent Claim
16 words
A composition of matter comprising 2.5% graphite, 7.5% PTFE, 10% bronze and 80% PEEK by weight.
Claim 6
Dependent Claim
16 words
A composition of matter comprising 2.5% graphite, 7.5% PTFE, 10% bronze and 80% PEEK by weight.
Claim 7
Dependent Claim
27 words
A plain bearing comprising a metal backing and a lining characterised in that the lining comprises a composition as claimed in any of Claims 1 to 4.
Claim 8
Dependent Claim
20 words
A plain bearing as claimed in Claim 4 characterised by an interlayer of bronze between the backing and the lining.
Claim 9
Independent Claim
35 words
A method of producing a composition of matter as claimed in any of Claims 2 to 4 which comprises compounding together the PTFE, graphite, and bronze, mixing this with PEEK powder and extruding the mixture.
Claim 10
Dependent Claim
24 words
A method as claimed in Claim 7 characterised in that the extruded material is drawn from the extruder thereby causing fibration of the material.
Claim 11
Independent Claim
53 words
A method of producing a plain bearing which comprises sintering an interlayer of bronze to a metal backing, applying a layer of the lining material to the sinter and applying heat and pressure to the lining, interlayer and backing, characterised in that the lining is a material comprising PEEK, PTFE, graphite, and bronze.
Claim 12
Independent Claim
53 words
A method of producing a plain bearing which comprises sintering an interlayer of bronze to a metal backing, applying a layer of the lining material to the sinter and applying heat and pressure to the lining, interlayer and backing, characterised in that the lining is a material comprising PEEK, PTFE, graphite, and bronze.
Claim 13
Dependent Claim
17 words
A method as claimed in Claim 9 characterised in that the lining is roll-bonded to the interlayer.
Claim 14
Dependent Claim
37 words
ll. A method as claimed in Claim 9 characterised in that the heat and pressure are applied to a stack of two or more lining/interlayer/backing assemblies, and the assemblies are allowed to cool while still under pressure.
References Cited (Backward Citations)
No citation records indexed.
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