Reactive polymer-supporting porous film for battery separator and use thereof
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United States of America Patent
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Oct 2, 2012
Grant Date -
Apr 16, 2009
app pub date -
Jan 10, 2006
filing date -
Jan 11, 2005
priority date (Note) -
Expired
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Abstract
Provided is a reactive polymer-supporting porous film for use as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film, the partially crosslinked reactive polymer being obtained by the reaction of a crosslinkable polymer having at least one reactive group selected from the group consisting of 3-oxetanyl group and epoxy group in the molecule with a monocarboxylic acid. Further, provided is a method of manufacturing a battery which comprises layering electrodes on the reactive polymer-supporting porous film.
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