Creep-optimized UHMWPE fiber
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United States of America Patent
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Jan 3, 2017
Grant Date -
Apr 17, 2014
app pub date -
Apr 3, 2012
filing date -
Apr 13, 2011
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Abstract
The invention relates to a creep-optimized ultrahigh molecular weight polyethylene (UHMWPE) fiber obtained by spinning an UHMWPE comprising olefinic branches (OB) and having an elongational stress (ES), and a ratio (OB/1000 C/ES) between the number of olefinic branches per thousand carbon atoms (OB/1000 C) and the elongational stress (ES) of at least 0.2, wherein said UHMWPE fiber when subjected to a load of 600 MPa at a temperature of 70° C., has a creep lifetime of at least 90 hours.
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