Title:
The resin composition for a fine porous film, its manufacturing method, the separator for batteries, and nonaqueous electrolyte secondary battery separators
Document Type and Number:
Japanese Patent JP5954443
Kind Code:
B2
Abstract:
Provided are a microporous membrane including a thermoplastic resin having a melting point of 220° C. or more and a polyolefin, the thermoplastic resin (a) having an acicular structure, and a method for producing the microporous membrane. The microporous membrane has high resistance to thermal shrinkage since it includes a polyolefin and a high-melting-point thermoplastic resin having an acicular structure. Thus, a battery separator for nonaqueous electrolyte secondary batteries and, in particular, a single-layer battery separator for nonaqueous electrolyte secondary batteries which have a good shut-down function and high resistance to thermal shrinkage may be produced.
Inventors:
Yutaka Maruyama
Satoshi Kawamura
Satoshi Kawamura
Application Number:
JP2015008628A
Publication Date:
July 20, 2016
Filing Date:
January 20, 2015
Export Citation:
Assignee:
DIC Corporation
International Classes:
C08J9/08; C08J9/00; H01M50/403; H01M50/406; H01M50/414; H01M50/489; H01M50/494
Domestic Patent References:
| JP50116537A | ||||
| JP2009149792A | ||||
| JP2009043485A | ||||
| JP2004149637A | ||||
| JP2000260413A | ||||
| JP64034726A | ||||
| JP2011222432A | ||||
| JP2004161899A |
Foreign References:
| WO2010079799A1 | ||||
| WO2011040474A1 |
Attorney, Agent or Firm:
Kono Tsuyo
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