PEROXIDE CROSS-LINKING OF POLYMERIC MATERIALS IN THE PRESENCE OF ANTIOXIDANTS

摘要

PEROXIDE CROSS-LINKING OF POLYMERIC MATERIALS IN THE PRESENCE OF ANTIOXIDANTS The present invention relates to a method of making an oxidation resistant, cross-linked polymeric material. The method comprises: (a) blending a polymeric material with an antioxidant and a peroxide cross-linking agent; and (b) consolidating the polymeric material thereby forming a consolidated, antioxidant and cross-linking agent-blended polymeric material. The polymeric material is selected from ultrahigh molecular weight polyethylene, high density polyethylene, low density polyethylene, linear low density polyethylene, and mixtures and blends thereof. The consolidation comprises compression molding or direct compression molding the polymeric material. Such material can be used in medical implant. Si g R Figure 1