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Multi-component polymeric strands including a butene polymer and nonwoven fabric and articles made therewith

  • US 5,512,358 A
  • Filed: 09/22/1993
  • Issued: 04/30/1996
  • Est. Priority Date: 09/22/1993
  • Status: Expired due to Term
First Claim
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1. A multi-component polymeric spunbond strand including first and second polymeric components and having a cross-section, a length, and a peripheral surface wherein:

  • the first and second polymeric components are arranged in substantially distinct zones across the cross-section of the strand and extend continuously along the length of the strand;

    the first polymeric component is a portion of the peripheral surface of the strand continuously along the length of the strand and comprises a blend of a butene polymer and a first polyolefin other than a butene polymer having up to about 10 weight percent of ethylene in polymeric form said butene polymer comprising butene in an amount from about 90 to about 100% by weight of the butene polymer;

    the second polymeric component comprises a second polyolefin having ethylene in an amount less than 10 weight percent.

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