发明申请
- 专利标题： HIGH MODULUS CROSSLINKED POLYETHYLENE WITH REDUCED RESIDUAL FREE RADICAL CONCENTRATION PREPARED BELOW THE MELT
- 专利标题（中）： 高密度交联聚乙烯，具有降低残留自由度的浓度
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申请号： US12823476申请日： 2010-06-25
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公开(公告)号： US20100262251A1公开(公告)日： 2010-10-14
- 发明人: Orhun K. Muratoglu , Stephen H. Spiegelberg , Gareth H. McKinley
- 申请人： Orhun K. Muratoglu , Stephen H. Spiegelberg , Gareth H. McKinley
- 申请人地址： US MA Boston US MA Boston
- 专利权人： The General Hospital Corporation,Cambridge Polymer Group, Inc.
- 当前专利权人： The General Hospital Corporation,Cambridge Polymer Group, Inc.
- 当前专利权人地址： US MA Boston US MA Boston
- 主分类号： A61F2/38
- IPC分类号： A61F2/38 ; C08F110/02 ; A61F2/32 ; A61F2/42
摘要：
The present invention provides an irradiated crosslinked polyethylene containing reduced free radicals, preferably containing substantially no residual free radical. Disclosed is a process of making irradiated crosslinked polyethylene by irradiating the polyethylene in contact with a sensitizing environment at an elevated temperature that is below the melting point, in order to reduce the concentration of residual free radicals to an undetectable level. A process of making irradiated crosslinked polyethylene composition having reduced free radical content, preferably containing substantially no residual free radicals, by mechanically deforming the polyethylene at a temperature that is below the melting point of the polyethylene, optionally in a sensitizing environment, is also disclosed herein.
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