发明名称 |
CROSSLINKED POLYMERIC MATERIAL WITH ENHANCED STRENGTH AND PROCESS FOR MANUFACTURING |
摘要 |
A radiation crosslinked (50 kGy), pressure-treated UHMWPE material has been developed by applying compressive force on a crosslinked polymer in a direction orthogonal to an axial direction. The deformed material is then cooled while held in a deformed state. The resulting material is anisotropic, with enhanced strength oriented along the axial direction. The directionally engineered material is oxidatively stable even after four weeks of accelerated aging in a pressure vessel containing five atmospheres of oxygen (ASTM F2003). Because of its oxidative stability, the deformation processed material is a suitable candidate for air-permeable packaging and gas sterilization, which has thus far been reserved for remelted highly crosslinked UHMWPEs. |
申请公布号 |
CA2832258(A1) |
申请公布日期 |
2006.04.20 |
申请号 |
CA20052832258 |
申请日期 |
2005.10.06 |
申请人 |
BIOMET MANUFACTURING CORP. |
发明人 |
SCHROEDER, DAVID W.;FREEDMAN, JORDAN H.;GUNTER, JAMES E.;SALYER, BRIAN D.;HAWKINS, H. GENE |
分类号 |
B29C47/08 |
主分类号 |
B29C47/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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