Title:
微多孔プラスチックフィルムの製造方法
Document Type and Number:
Japanese Patent JP6555252
Kind Code:
B2
Abstract:
The present invention provides a production method of a microporous plastic film that achieves various characteristics such as strength while having an excellent appearance grade by using a wet stretching method. The production method of a microporous plastic film according to the present invention comprises: kneading a diluent and a polymer with an extruder; discharging the polymer kneaded with the diluent into a sheet from a mouthpiece; and stretching the sheet discharged from the mouthpiece in a conveying direction of the sheet with a plurality of rollers; the diluent being applied to at least one of the plurality of rollers and/or the sheet in the step of stretching the sheet in the conveying direction of the sheet.
Inventors:
Takashi Ichinomiya
Masami Sugada
Masami Sugada
Application Number:
JP2016510214A
Publication Date:
August 07, 2019
Filing Date:
March 10, 2015
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
C08J9/00; B29C48/08; B29C48/305; B29C48/355; B29C55/06; B29C67/20; H01M50/403; H01M50/406; H01M50/417
Domestic Patent References:
| JP2011526547A | ||||
| JP2012500130A | ||||
| JP2009190987A | ||||
| JP2013530261A |