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BIAXIALLY-STRETCHED POROUS MEMBRANE

  • US 20170002156A1
  • Filed: 12/01/2014
  • Published: 01/05/2017
  • Est. Priority Date: 11/29/2013
  • Status: Abandoned Application
First Claim
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1. A biaxially stretched porous membrane comprising polytetrafluoroethylene obtained by copolymerizing tetrafluoroethylene and perfluoro(methyl vinyl ether).

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