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Electrically conductive, freestanding microporous polymer sheet

  • US 6,524,742 B1
  • Filed: 02/18/2000
  • Issued: 02/25/2003
  • Est. Priority Date: 02/19/1999
  • Status: Expired due to Term
First Claim
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1. A freestanding, electrically conductive polymer web, comprising:

  • an extruded polymer matrix binding a material composition having electrical conductivity properties, the polymer matrix including an ultrahigh molecular weight polyolefin of a molecular weight that provides sufficient molecular chain entanglement to form a microporous web having freestanding characteristics and having pores encompassing a volume fraction of between about 0.20 and about 0.8.

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