Title:
COATING LIQUID, LAMINATED POROUS FILM, AND METHOD FOR PRODUCING LAMINATED POROUS FILM
Document Type and Number:
WIPO Patent Application WO/2013/031872
Kind Code:
A1
Abstract:
The present invention provides a coating liquid, a laminated porous film, and a method for producing a laminated porous film. The coating liquid contains a binder resin, a filler and a medium; and the filler is a mixture that contains a filler (a) having a specific surface area from 7 m2/g to 80 m2/g (inclusive) and a filler (b) having a specific surface area from 2 m2/g to 7 m2/g (inclusive) at a weight ratio of the filler (a) to the filler (b) from 5:95 to 40:60. The laminated porous film is obtained by laminating a heat-resistant layer on one surface or both surfaces of a porous base film; and the heat-resistant layer is formed by removing the medium from the coating liquid. The method is a method for producing a laminated porous film in which a heat-resistant layer containing a filler and a binder resin is laminated on one surface or both surfaces of a porous base film, said method comprising a step wherein the heat-resistant layer is formed by removing the medium from the coating liquid.
Inventors:
SHINODA HIROSHI (JP)
HASEGAWA HIROHIKO (JP)
HASEGAWA HIROHIKO (JP)
Application Number:
PCT/JP2012/071936
Publication Date:
March 07, 2013
Filing Date:
August 23, 2012
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
SHINODA HIROSHI (JP)
HASEGAWA HIROHIKO (JP)
SHINODA HIROSHI (JP)
HASEGAWA HIROHIKO (JP)
International Classes:
C09D201/00; B32B27/20; C09D7/61; C09D101/08; C09D101/26; C09D103/02; C09D105/04; C09D129/04; H01M50/403; H01M50/417; H01M50/429; H01M50/431; H01M50/443; H01M50/449; H01M50/489; H01M50/491
Domestic Patent References:
WO2008123331A1 | 2008-10-16 | |||
WO2006080459A1 | 2006-08-03 | |||
WO2012018133A1 | 2012-02-09 |
Foreign References:
JP2010123383A | 2010-06-03 | |||
JPH04146521A | 1992-05-20 | |||
JPH1121473A | 1999-01-26 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Nakayama δΊ¨ (JP)
Nakayama δΊ¨ (JP)
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Claims: