EP0182580A2
Expired / Lapsed
EP
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Aromatic polymer composition
Assignee: Imperial Chemical Industries Ltd
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Filing: 1985-11-12
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Granted: —
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Expires: 2005-11-12
Abstract
Abstract An aromatic polymer composition comprises a polyaryletherketone and talc. The polyaryletherketone can be polyaryletheretherketone. The composition can be obtained by blending together the aromatic polymer and the talc. The blend can be used for the production of bearings or bearing liners.
Inventors
- 👤 Michael Kenneth Cox
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:01
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; C; C08; C08K; C08K3/00; C08K3/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
11 words
A polymer composition comprising a mixture of a polyaryletherketone with talc.
Claim 2
Dependent Claim
11 words
A polymer composition comprising a mixture of a polyaryletherketone with talc.
Claim 3
Dependent Claim
30 words
A composition as claimed in claim 1 which also includes at least one further component which is a stabiliser, an inorganic or organic fibre or an inorganic or organic filler.
Claim 4
Dependent Claim
34 words
A composition as claimed in either claim 1 or claim 2 whetein the proportion of talc plus any further components is at least 1%, and does not exceed 70%, by weight of the composition.
Claim 5
Dependent Claim
30 words
A composition as claimed in any one.of claims 1 to 3 which contains from 5 up to 30% by weight of talc relative to the total weight of the composition.
Claim 6
Dependent Claim
15 words
A composition as claimed in claim 1 which consists essentially of a polyaryletherketone and talc.
Claim 7
Dependent Claim
42 words
A composition as claimed in any one of claims 1 to 5 whereof the polyaryletherketone component is a polymer which contains the repeat units or the repeat units alone or in conjunction with each other and/or in conjunction with other repeat units.
Claim 8
Dependent Claim
27 words
A composition as claimed in any one of claims 1 to 6 wherein the talc has a number average particle size of not more than 30 micrometres.
Claim 9
Dependent Claim
16 words
A process for the production of a polymer composition which comprises mixing a polyaryletherketone with talc.
Claim 10
Dependent Claim
16 words
A process for the production of a polymer composition which comprises mixing a polyaryletherketone with talc.
Claim 11
Dependent Claim
24 words
A process as claimed in claim 8 wherein the materials are mixed together using a powder blending technique and the powder blend is extruded.
Claim 12
Dependent Claim
35 words
A plain bearing formed from a polymer composition, or comprising a metal backing having a lining formed from a polymer composition, wherein the polymer composition is as claimed in any one of claims to 7.
References Cited (Backward Citations)
No citation records indexed.
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