发明名称 |
MICROPOROUS POLYOLEFIN FILM AND SEPARATOR FOR STORAGE CELL |
摘要 |
A microporous film, characterized in that it is prepared by a method comprising melting and kneading a polyolefin resin, inorganic particles and a plasticizer, forming the resultant mixture into a sheet, subjecting the resultant sheet to a biaxial stretching treatment of a surface magnification of not less than 20 and less than 100 times, and then extracting the plasticizer, it has an inorganic particle content of 20 to 60 mass %, and it exhibits a piercing strength of 3.0 N/20 µm or more. |
申请公布号 |
WO2006025323(A1) |
申请公布日期 |
2006.03.09 |
申请号 |
WO2005JP15658 |
申请日期 |
2005.08.29 |
申请人 |
ASAHI KASEI CHEMICALS CORPORATION;HATAYAMA, HIROSHI;SOGO, HIROSHI |
发明人 |
HATAYAMA, HIROSHI;SOGO, HIROSHI |
分类号 |
C08J9/00;C08J9/26;C08L23/00;H01M2/16 |
主分类号 |
C08J9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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