Process for the preparation of a shaped part of an ultra high molecular weight polyethylene
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United States of America Patent
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Mar 2, 2010
Grant Date -
Jun 29, 2006
app pub date -
Jun 26, 2003
filing date -
Jun 26, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a process for the manufacture of a shaped part of ultra high molecular weight polyethylene (UHMWPE) comprising melt processing, wherein a) the UHMWPE has a weight average molecular weight (Mw) of at least 1*106 g/mol, b) during the shaping the storage plateau modulus of the UHMWPE (G*) is kept at a value of at most 1.5 MPa, c) whereafter, before the cooling, the G* is raised to its final value. The invention further relates to a shaped part obtainable with the process and the use of the shaped part in a medical application.
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