Title:
MULTILAYER FILM MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/027001
Kind Code:
A1
Abstract:
A multilayer film manufacturing method provided with: a step of removing from an original rolled film (22) a pore forming material; a step of applying a coating liquid including fine particles, using a second roll (26) while causing first rolls (27, 28) and the second roll to contact the original rolled film; a step of stretching the original rolled film in a width direction in a state in which the coating liquid has fluidity; and a step of drying the coating liquid to form a multilayer film to which a fine particle layer has been fixed. During coating, the angle formed by a line connecting the rotating axis position of at least one of the first rolls and the rotating axis position of the second roll and the direction in which the original rolled film is pressed by the second roll is not less than 0° and not more than 150°.
Inventors:
NAKAMURA SATORU (JP)
ISHIGURO RYO (JP)
KATAMOTO KYOSUKE (JP)
ISHIGURO RYO (JP)
KATAMOTO KYOSUKE (JP)
Application Number:
PCT/JP2018/029037
Publication Date:
February 07, 2019
Filing Date:
August 02, 2018
Export Citation:
Assignee:
JAPAN STEEL WORKS LTD (JP)
International Classes:
H01M50/443
Domestic Patent References:
| WO2016080200A1 | 2016-05-26 |
Foreign References:
| JP2012020437A | 2012-02-02 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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