Title:
MICROPOROUS POLYOLEFIN MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2015/166878
Kind Code:
A1
Abstract:
Provided is a microporous polyolefin membrane which is excellent in terms of appearance and high-temperature shape retentivity and which can pass a safety evaluation test with high certainty. The microporous polyolefin membrane contains 5-20% by weight polypropylene having a weight-average molecular weight of 1,500,000-3,000,000, 5-20% by weight polyethylene having a weight-average molecular weight of 1,500,000-2,500,000, and 60-90% polyethylene having a weight-average molecular weight of 200,000-500,000 and has a single-layer structure.
Inventors:
CHEN YANZI (JP)
MITSUOKA HIDETO (JP)
KIKUCHI SHINTARO (JP)
MITSUOKA HIDETO (JP)
KIKUCHI SHINTARO (JP)
Application Number:
PCT/JP2015/062416
Publication Date:
November 05, 2015
Filing Date:
April 23, 2015
Export Citation:
Assignee:
TORAY BATTERY SEPARATOR FILM (JP)
International Classes:
C08J9/26; C08L23/06; C08L23/12
Domestic Patent References:
| WO2012102129A1 | 2012-08-02 | |||
| WO2009064296A1 | 2009-05-22 |
Foreign References:
| JP2012508946A | 2012-04-12 | |||
| JP2012524683A | 2012-10-18 | |||
| JP2012531011A | 2012-12-06 | |||
| JP2012530802A | 2012-12-06 | |||
| JP2009537638A | 2009-10-29 |
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