BIAXIALLY ORIENTED POROUS FILM HAVING A PARTICLES-CONTAINING POROUS LAYER AND AN INORGANIC COATING
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United States of America Patent
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Jul 30, 2020
app pub date -
Oct 18, 2016
filing date -
Oct 20, 2015
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Abstract
The invention relates to a biaxially oriented, single- or multi-layer porous film, containing a β-nucleating agent and comprising at least one porous layer, which contains at least one propylene polymer and particles, said particles having a melting point of more than 200° C. On the outer surface of the porous layer, said porous film has a coating of inorganic, preferably ceramic particles.
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