Oxidation resistant homogenized polymeric material

Details Oxidation resistant homogenized polymeric material Oxidation resistant homogenized polymeric material

C - Chemistry, Metallurgy

08

J

C08J 3/28 (2006.01)

Patent

CA 2619942

The present invention relates to methods for making oxidation resistant homogenized polymeric materials and medical implants that comprise polymeric materials, for example, ultra-high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped medical implants, for example, doping of medical devices containing cross-linked UHMWPE with vitamin E by diffusion and annealing the anti-oxidant doped UHMWPE in a super critical fluid, and materials used therein.

L'invention concerne des procédés de fabrication de matériaux polymères homogénéisés résistant à l'oxydation et des implants médicaux comprenant ces matériaux polymères, par exemple, du polyéthylène de poids moléculaire ultra-élevé (UHMWPE). L'invention concerne également des procédés de fabrication d'implants médicaux dopés aux antioxydants, par exemple, le dopage de dispositifs médicaux renfermant du UHMWPE réticulé avec de la vitamine E par diffusion et recuit du UHMWPE dopé aux antioxydants dans un fluide super critique et des matériaux utilisés dans ceux-ci.

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