C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 3/28 (2006.01)
Patent
CA 2619869
The present invention provides irradiated crosslinked polyethylene containing reduced free radicals, preferably containing substantially no residual free radical. Processes of making crosslinked wear-resistant polyethylene having reduced free radical content, preferably containing substantially no residual free radicals, by mechanically deforming the irradiated PE either with or without contact with sensitizing environment during irradiation and annealing the post-irradiated PE at a temperature that is above the melting point of the PE, are also disclosed herein.
L'invention concerne un polyéthylène réticulé irradié contenant des radicaux libres réduits, de préférence ne contenant sensiblement aucun radicaux libres résiduels. Plus spécifiquement, l'invention concerne des procédés de fabrication d'un polyéthylène résistant à l'usure réticulé possédant une teneur en radicaux libres réduite, ne contenant de préférence aucun radicaux libres résiduels, par déformation mécanique du polyéthylène (PE) irradié avec ou sans contact avec un environnement de sensibilisation durant l'irradiation, puis par recuit du PE suite à l'irradiation à une température supérieure au point de fusion du PE.
Muratoglu Orhun K.
Spiegelberg Stephen H.
Cambridge Polymer Group Inc.
Fetherstonhaugh & Co.
The General Hospital Corporation Dba Massachusetts General Hospi
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