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Heating apparatus and process for drawing polyolefin fibers

  • US 7,370,395 B2
  • Filed: 11/01/2006
  • Issued: 05/13/2008
  • Est. Priority Date: 12/20/2005
  • Status: Active Grant
First Claim
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1. A heating apparatus for drawing ultrahigh molecular weight polyolefin fibers in a one stage draw with continuous heating, said heating apparatus consisting essentially of:

  • a first set of rolls;

    a plurality of horizontally aligned ovens, said plurality of ovens having one end adjacent to said first set of rolls and an opposite end, said ovens being arranged such that their respective ends are in abutting relationship to thereby provide a relatively long continuous oven such that said fibers are conveyed from said one end of said continuous oven to said opposite end of said continuous oven, anda second set of rolls adjacent to said opposite end of said plurality of ovens, said first and second set of rolls being adapted to provide the desired drawing of said polyolefin fibers and to convey said fibers through said continuous oven.

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