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Shaped polyethylene articles of intermediate molecular weight and high modulus

  • US 5,736,244 A
  • Filed: 08/28/1995
  • Issued: 04/07/1998
  • Est. Priority Date: 01/11/1985
  • Status: Expired due to Fees
First Claim
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1. A film or fiber consisting essentially of polyethylene having a weight average molecular weight between about 200,000 and less than 800,000 kg/kg mole, said fiber or film having a tensile modulus of at least 350 grams/denier, a tenacity of at least 13 grams/denier, a crystalline orientation function of at least 0.95, a main melting temperature of at least 140°

  • C. (measured at 10°

    C./minute heating rate by differential scanning calorimetry), an ultimate elongation of not more than 5%, and a traverse microfibrillar spacing of less than 150 Å

    .

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