METHOD FOR PRODUCING FILM
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United States of America Patent
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Issued Date -
Jun 22, 2017
app pub date -
Dec 20, 2016
filing date -
Dec 22, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
The separator production method in accordance with an embodiment of the present invention includes a coated article taking up step of taking up a separator original sheet by winding the separator original sheet on an outer peripheral surface of a core while oscillating the core in the rotation axis direction; a coated article winding off step of winding off the separator original sheet, which has been taken up in the coated article taking up step, from the core; and a transferring step of transferring the separator original sheet, which has been wound off in the coated article winding off step, such that a state of being distorted in a wavelike manner in the transverse direction is maintained.
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