Tetrafluoroethylene copolymer composition for injection molding
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United States of America Patent
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Issued Date -
May 10, 2007
app pub date -
Nov 3, 2006
filing date -
Nov 8, 2005
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Abandoned
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Abstract
A tetrafluoroethylene copolymer composition for injection molding having excellent resistance to chemical permeation and durability, comprised of polytetrafluoroethylene and copolymer of tetrafluoroethylene and perfluoro(alkyl vinyl ether). The composition has a melt flow rate of 12 g/10 min or greater, a flex life of 20,000 cycles or greater, and a nitrogen gas permeability of 0.8.times.10.sup.-10 cm.sup.3 (STP).cm/cm.sup.2.sec.cm Hg or less.
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