Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ian MacMillan Ward0
Mark James Bonner0
Peter John Hine0
Richard Albert Jones0
Date of Patent
October 9, 2007
0Patent Application Number
107175530
Date Filed
November 21, 2003
0Patent Primary Examiner
Patent abstract
A polyolefin plaque is made by hot compaction of an assembly of fibres of the oriented polymer. It has been found to be beneficial to subject the fibres to a prior crosslinking process. Hot compaction is then less temperature-sensitive and produces plaques with excellent hot strength properties. Preferably the fibres have been subjected to prior stages of irradiation and annealing, both in a non-oxidising environment, for example acetylene.
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