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High tenacity, high modulus polyethylene and polypropylene fibers and intermediates therefore

  • US 4,536,536 A
  • Filed: 10/03/1983
  • Issued: 08/20/1985
  • Est. Priority Date: 03/19/1982
  • Status: Expired due to Term
First Claim
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1. A polyolefin gel fiber of substantially indefinite length comprising between about 4 and about 20 weight % solid polyethylene of weight average molecular weight at least about 500,000 or solid polypropylene of weight average molecular weight at least about 750,000, and between about 80 and about 96 weight % of a swelling solvent miscible with a high boiling hydrocarbon and having an atmospheric boiling point less than about 50°

  • C.

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