THERMOPLASTIC FILM, METHODS FOR MAKING SUCH FILM, AND THE USE OF SUCH FILM AS BATTERY SEPARATOR FILM
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United States of America Patent
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Issued Date -
Mar 1, 2012
app pub date -
Apr 7, 2010
filing date -
Apr 23, 2009
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Abandoned
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Abstract
A thermoplastic film including a microporous polymeric membrane; and a non-woven web comprising a plurality of fibers, the web being bonded to the microporous polymeric membrane, wherein the fibers comprise oxidation-protective polymer having an MFR ≧2.0×102.
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