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Title:
METHOD FOR PRODUCING POROUS POLYOLEFIN FILM
Document Type and Number:
Japanese Patent JP2010100845
Kind Code:
A
Abstract:

To provide a porous polyolefin film having good thermal dimensional stability and exhibiting excellent properties when used as a separator.

The porous polyolefin film is prepared by subjecting a film roll formed by winding a porous polyolefin film around a core to heat treatment at a temperature of 50-100C for 1-100 hr.


Inventors:
FUJIMOTO SOICHI
MATSUI RYOSUKE
OKURA MASATOSHI
Application Number:
JP2009222317A
Publication Date:
May 06, 2010
Filing Date:
September 28, 2009
Export Citation:
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Assignee:
TORAY INDUSTRIES
International Classes:
C08J9/36; H01M2/16
Domestic Patent References:
JPH0892403A1996-04-09
JPH11240970A1999-09-07
JPH09235399A1997-09-09
JP2006108113A2006-04-20
JP2000212324A2000-08-02
JPH09272148A1997-10-21
JPH10316781A1998-12-02
Foreign References:
WO2007069560A12007-06-21
WO2008013114A12008-01-31



 
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