Nixon & Vanderhye
Resin composition, porous film or sheet
 Disclosed herein are a resin composition for a porous film or sheet, comprising: PA1 100 parts by weight of a polyolefin (A) having a density of not more than 0.930 g/cm.sup.3 and a melt index of not more than 2 g/10 min; PA1 100 to 400 parts by weight of a filler (B); PA1 1 to 100 parts by weight of a plasticizer (C) composed of a compound having an ester linkage or an amide linkage in a molecule, and having a molecular weight of not less than 100, a boiling point of not lower than 200.degree. C. and a melting point of not higher than 100.degree. C. under an ordinary pressure; and PA1 0.0001 to 0.1 part by weight of a radical generator (D); PA1 a porous film or sheet therefrom; and PA1 a process for producing the same. 
Mitsubishi Kasei Corporation
C B B B C B C B C C C B
C08J B29K B29K B29K C08K B29C C08J B29K C08K C08K C08K B29K
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Toshio Tasuku Akihiko
Fujii Suzuki Sakai