MULTILAYER MICROPOROUS FILM, PROCESS FOR PRODUCTION OF THE FILM, AND USE OF THE FILM
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United States of America Patent
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Issued Date -
Dec 26, 2013
app pub date -
Jan 10, 2012
filing date -
Jan 11, 2011
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Abandoned
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Abstract
The invention generally relates to polymer film, and more particularly relates to polymeric membranes, methods for producing such membranes, and the use of such membranes as battery separator film. In an embodiment, the invention relates to liquid-permeable multi-layer microporous membranes comprising microlayers. According to the invention, liquid-permeable multi-layer microporous membranes having excellent physical properties including permeability can be produced without causing delaminate.
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