WIDE MICROPOROUS FILM
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United States of America Patent
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Issued Date -
Jun 13, 2024
app pub date -
Apr 12, 2022
filing date -
Apr 14, 2021
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Abstract
In one aspect, a wide microporous film comprises one or more layers comprising a polyolefin, wherein the microporous film has a width of at least 50 inches and comprises one or more non-porous regions. In some embodiments, the microporous film is at least 55 inches or at least 60 inches. Moreover, in some embodiments, the non-porous region is located along a creased region of the microporous film.
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