Highly crystalline cross-linked oxidation-resistant...

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 3/00 (2006.01) A61L 2/10 (2006.01) A61L 2/20 (2006.01) A61L 27/14 (2006.01) B29B 13/02 (2006.01) B29B 13/04 (2006.01) B29B 13/08 (2006.01) C08J 3/20 (2006.01) C08J 3/24 (2006.01) C08J 3/28 (2006.01) C08L 23/06 (2006.01)

Patent

CA 2554777

The present invention relates to methods for making highly crystalline cross- linked polymeric material, for example, highly crystalline cross-linked ultra- high molecular weight polyethylene (UHMWPE). The invention also provides methods of making antioxidant-doped highly crystalline cross-linked polymeric material using high pressure and high temperature crystallization processes, medical implants made thereof, and materials used therein.

La présente invention concerne des procédés de fabrication de matériau polymère réticulé hautement cristallin, par exemple, un polyéthylène de poids moléculaire ultra élevé réticulé hautement cristallin (UHMWPE). Cette invention concerne aussi des procédés de fabrication de matériau polymère réticulé hautement cristallin dopé à l'antioxydant utilisant des processus de cristallisation sous hautes pressions et à hautes températures, des implants médicaux fabriqués à partir de ce matériau et des matériaux utilisés dans ceux-ci.

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