ANTIOXIDANT DOPING OF CROSSLINKED POLYMERS AT HIGH PRESSURES

摘要

Methods for an antioxidant doped polymer in the form of an implant bearing component. The process includes: (a) contacting a crosslinked polymer with a liquid composition comprising an antioxidant, to provide an intermediate polymer with the antioxidant on its surface; and (b) homogenizing the intermediate polymer by raising the pressure to increase the onset melting temperature of the polymer, and then heating above the ambient onset temperature but below the raised onset melting point of the polymer.