| 发明名称 |
LAMINATED MICROPOROUS FILM, METHOD FOR PRODUCING THE SAME AND SEPARATOR FOR BATTERY |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laminated microporous film having low electric resistance, a method for producing the same and a separator for a battery using the laminated microporous film. <P>SOLUTION: The laminated microporous film comprises a first microporous film consisting of a first resin composition and a second microporous film consisting of a second resin composition having a melting point lower than that of the first resin composition. The second resin composition contains a polyethylene resin and a ratio (η<SB POS="POST">e</SB>/η<SB POS="POST">s</SB>) of elongational viscosity η<SB POS="POST">e</SB>to shear viscosity η<SB POS="POST">s</SB>is 15 to 100. <P>COPYRIGHT: (C)2012,JPO&INPIT |
| 申请公布号 |
JP2011255654(A) |
申请公布日期 |
2011.12.22 |
| 申请号 |
JP20100134527 |
申请日期 |
2010.06.11 |
| 申请人 |
ASAHI KASEI E-MATERIALS CORP |
发明人 |
ASAMI YOKO;MASAKO TERUAKI |
| 分类号 |
B32B27/32;B32B5/32;C08J9/00;C08L23/12;C08L71/12;H01M2/16 |
主分类号 |
B32B27/32 |
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