Title:
Fine porous film
Document Type and Number:
Japanese Patent JP5942113
Kind Code:
B2
Abstract:
A microporous membrane having a polyolefin microporous membrane and a surfactant adhering to the polyolefin microporous membrane, wherein the surfactant includes a surfactant (A) having a solubility in 100 g of water of 5 g or more and a surfactant (B) having a solubility in 100 g of water of less than 0.1 g, the surfactants (A) and (B) are adhered in an amount of 1 to 40% by mass in total based on 100% by mass of the polyolefin microporous membrane, and the polyolefin microporous membrane has a tortuosity factor of more than 2.0.
Inventors:
Ken Onizawa
Hisashi Takeda
Ameyama Keitaro
Hisashi Takeda
Ameyama Keitaro
Application Number:
JP2013536335A
Publication Date:
June 29, 2016
Filing Date:
September 26, 2012
Export Citation:
Assignee:
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
C08J9/36; C08J7/054; C08J7/056; H01M50/403; H01M50/414; H01M50/449; H01M50/489; H01M50/494; H01M50/406; H01M50/491
Domestic Patent References:
| JP2003105121A | ||||
| JP2005268225A | ||||
| JP2000212324A | ||||
| JP7228718A |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito