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Very low creep, ultra high modulus, low shrink, high tenacity polyolefin fiber having good strength retention at high temperatures and method to produce such fiber

  • US 5,958,582 A
  • Filed: 04/20/1998
  • Issued: 09/28/1999
  • Est. Priority Date: 06/17/1985
  • Status: Expired due to Fees
First Claim
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1. A low creep, high modulus, high strength, low shrink, high molecular weight polyolefin shaped article or fabric having improved strength retention at high temperatures which has been prepared by poststretching at a drawing rate of less than about 1 second-1 at a temperature within about 10°

  • C. of its melting temperature, said shaped article or fabric, prior to being poststretched, being fabricated from polyolefin which has been highly oriented at a higher rate than 1 second-1 and at a temperature of within about 10°

    C. of its melting point.

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