Title:
POLYOLEFIN MICROPOROUS MEMBRANE
Document Type and Number:
WIPO Patent Application WO2004089627
Kind Code:
A8
Abstract:
A polyolefin microporous membrane which contains polyethylene and polypropylene as the essential components and consists of a laminated film constituted of at least two layers, wherein the polypropylene content of at least one surface layer exceeds 50 wt% and is up to 95 wt% and the polyethylene content of the whole membrane is 50 to 95 wt%.
Inventors:
OHASHI MASAHIRO (JP)
KONDO TAKAHIKO (JP)
KONDO TAKAHIKO (JP)
Application Number:
PCT/JP2004/004849
Publication Date:
October 27, 2005
Filing Date:
April 02, 2004
Export Citation:
Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
OHASHI MASAHIRO (JP)
KONDO TAKAHIKO (JP)
OHASHI MASAHIRO (JP)
KONDO TAKAHIKO (JP)
International Classes:
B32B5/32; B32B27/32; H01M50/417; H01M50/451; H01M50/457; H01M50/489; H01M50/491; (IPC1-7): B32B27/32; H01M2/16
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