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Polymeric web having deformed sections which provide a substantially increased elasticity to the web

  • US 5,366,782 A
  • Filed: 08/25/1992
  • Issued: 11/22/1994
  • Est. Priority Date: 08/25/1992
  • Status: Expired due to Term
First Claim
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1. An elastic, three-dimensional, fluid pervious, polymeric web having a first direction and a second direction perpendicular thereto, said web comprising:

  • a plurality of three-dimensional, beam-like elements having a base portion in an uppermost plane and a pair of sidewall portions depending from said base portion connected to one another forming apertures in said web, a plurality of said three-dimensional, beam-like elements having permanently deformed sections such that said base portion of said permanently deformed section is below said uppermost plane while said web is in a substantially non-tensioned state, said base portion of said permanently deformed section being elevated towards said uppermost plane when said web is subjected to tension in the first direction allowing said web to extend in the first direction and said base portion of said permanently deformed section returning to its non-tensioned position below said uppermost plane when the tension in said web is released.

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