COATING LIQUID, LAMINATED POROUS FILM, AND METHOD FOR PRODUCING LAMINATED POROUS FILM

WIPO Patent Application WO/2013/031872

A1

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.

SHINODA HIROSHI (JP)
HASEGAWA HIROHIKO (JP)

PCT/JP2012/071936

March 07, 2013

August 23, 2012

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SUMITOMO CHEMICAL CO (JP)
SHINODA HIROSHI (JP)
HASEGAWA HIROHIKO (JP)

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

WO2008123331A1	2008-10-16
WO2006080459A1	2006-08-03
WO2012018133A1	2012-02-09

JP2010123383A	2010-06-03
JPH04146521A	1992-05-20
JPH1121473A	1999-01-26

NAKAYAMA, Tohru et al. (JP)
Nakayama 亨 (JP)

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