Title:
METHOD FOR MANUFACTURING MICROPOROUS PLASTIC FILM
Document Type and Number:
WIPO Patent Application WO/2015/146580
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a microporous plastic film having excellent quality of appearance while having characteristics such as strength, through use of a wet drawing method. This method for manufacturing a microporous plastic film comprises a step for kneading a diluting agent and a polymer in an extruder, discharging the polymer into which the diluting agent is kneaded from a die into a sheet shape, and drawing the sheet discharged from the die in a conveyance direction of the sheet through use of a plurality of rollers, the sheet being drawn in the conveyance direction, wherein the diluting agent is applied to the sheet and/or at least one of the plurality of rollers.
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Inventors:
ICHINOMIYA TAKASHI (JP)
SUGATA MASAMI (JP)
SUGATA MASAMI (JP)
Application Number:
PCT/JP2015/057058
Publication Date:
October 01, 2015
Filing Date:
March 10, 2015
Export Citation:
Assignee:
TORAY BATTERY SEPARATOR FILM (JP)
International Classes:
C08J9/00; B01D71/26; B29C47/88; B29C48/305; B29C48/355; C08J9/26; H01M50/403; H01M50/406; H01M50/417
Foreign References:
| JP2011526547A | 2011-10-13 | |||
| JP2012500130A | 2012-01-05 | |||
| JP2009190987A | 2009-08-27 | |||
| JP2013530261A | 2013-07-25 | |||
| JP4033246B2 | 2008-01-16 | |||
| JP2013032545A | 2013-02-14 |
Other References:
See also references of EP 3124526A4
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