Stretched polyethylene filaments of high strength and high modulus, and their production
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United States of America Patent
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-
Oct 14, 1986
Grant Date -
N/A
app pub date -
May 21, 1984
filing date -
May 20, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Stretched filaments of high strength and high modulus being made of polyethylene of a weight average molecular weight of not less than 3.times.10.sup.6 and having a strength of not less than 50 g/d and an initial modulus of not less than 1,500 g/d, the long period structure being substantially not observed, which are prepared by spinning a dilute solution of said polyethylene and stretching the resultant gel-like filaments in multi-stages until the long period structure becomes substantially not observed.
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