Title:
SLURRY AND METHOD FOR PRODUCING SEPARATOR USING THE SLURRY
Document Type and Number:
WIPO Patent Application WO/2012/043501
Kind Code:
A1
Abstract:
The present invention provides a slurry. The slurry can be used for the purpose of forming a porous membrane, which contains a water-soluble polymer and fine particles, in a separator wherein the porous membrane and a polyolefin porous membrane are laminated. The slurry contains a water-soluble polymer, fine particles and a medium. The medium is a mixed solvent of water and at least one alcohol that is selected from among saturated aliphatic alcohols having 1-4 carbon atoms, and the concentration of the alcohol is 10-35% by weight (inclusive) relative to the mixed solvent. A method for producing a separator comprises: a step wherein a polyolefin porous membrane is coated with the slurry; and a step wherein the medium is removed from the thus-obtained coating film so that a porous membrane, which contains a water-soluble polymer and fine particles, is laminated on the polyolefin porous membrane.
Inventors:
SHINOHARA YASUO (JP)
SUGAWARA KENICHIRO (JP)
HASEGAWA HIROHIKO (JP)
SUGAWARA KENICHIRO (JP)
HASEGAWA HIROHIKO (JP)
Application Number:
PCT/JP2011/071942
Publication Date:
April 05, 2012
Filing Date:
September 20, 2011
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
SHINOHARA YASUO (JP)
SUGAWARA KENICHIRO (JP)
HASEGAWA HIROHIKO (JP)
SHINOHARA YASUO (JP)
SUGAWARA KENICHIRO (JP)
HASEGAWA HIROHIKO (JP)
International Classes:
C08L101/14; B32B5/32; C08J9/28; C08K7/16; C09D101/26; C09D129/04; C09D201/00; H01M50/414; H01M50/417; H01M50/449; H01M50/489; H01M50/491
Domestic Patent References:
| WO2008143005A1 | 2008-11-27 | |||
| WO2011024797A1 | 2011-03-03 |
Foreign References:
| JP2009026733A | 2009-02-05 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
Nakayama δΊ¨ (JP)
Nakayama δΊ¨ (JP)
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Claims: