Methods for making oxidation-resistant cross-linked...

C - Chemistry – Metallurgy – 08 – J

Patent

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C08J 3/24 (2006.01) C08J 3/20 (2006.01) C08J 3/28 (2006.01) C08J 5/00 (2006.01) C08J 11/00 (2006.01) C08K 5/1545 (2006.01) C08L 23/06 (2006.01)

Patent

CA 2674955

The present invention relates to methods for making cross-linked oxidation-resistant polymeric materials and preventing or minimizing in vivo elution of antioxidant from the antioxidant-containing polymeric materials. The invention also provides methods of doping polymeric materials with a spatial control of cross-linking and antioxidant distribution, for example, vitamin E (.alpha.-Tocopherol), and methods for extraction/elution of antioxidants, for example, vitamin E (.alpha.-tocopherol), from surface regions of antioxidant-containing polymeric materials, and materials used therewith also are provided.

L'invention concerne des procédés de fabrication de matériaux polymères réticulés résistant à l'oxydation et de prévention ou de minimisation d'élution in vivo d'antioxydant à partir de matériaux polymères contenant un antioxydant. L'invention concerne également des procédés de dopage de matériaux polymères avec un contrôle spatial de réticulation et de distribution d'antioxydants, par exemple, la vitamine E (a-tocophérol), et des procédés pour l'extraction/élution d'antioxydants, par exemple, la vitamine E (a-tocophérol), à partir de régions de surface de matériaux polymères contenant un antioxydant, et des matériaux utilisés avec ceux-ci sont également fournis.

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