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Method of making a polypropylene fabric having high strain rate elongation and method of using the same

  • US 20040038022A1
  • Filed: 09/27/2002
  • Published: 02/26/2004
  • Est. Priority Date: 03/27/2000
  • Status: Abandoned Application
First Claim
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1. A method of making a non-woven fabric comprising providing a fabric comprising a plurality of fibers which comprise at least one polypropylene polymer and at least one ethylene polymer;

  • bonding the fabric at a bond temperature of from 15 to 20°

    F. lower than an optimum bond temperature of a comparative fabric, measured at a strain rate of 6% per second, to form an improved high strain rate fabric, wherein the comparative fabric comprises fibers of the polypropylene polymer without the ethylene polymer, and wherein the fabric tensile elongation is at least 20 percent greater than the comparative fabric at strain rates in the range from 10,000 to 11,000% per second.

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