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Dense polytetrafluoroethylene articles

  • US 5,374,473 A
  • Filed: 08/19/1992
  • Issued: 12/20/1994
  • Est. Priority Date: 08/19/1992
  • Status: Expired due to Term
First Claim
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1. A material consisting essentially of a sintered, densified expanded polytetrafluoroethylene having remnants of a fibril and node structure as characterized by peaks at about 327°

  • C. and about 380°

    C. in a thermogram of differential scanning calorimetry in the course of temperature rise of 10°

    C./min, having a density of 2.10 gm/cc or greater and being substantially free of pores.

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