SHEET COMPRISING POLYOLEFIN RESIN COMPOSITION, POROUS FILM, AND SEPARATOR FOR ELECTRIC BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a sheet comprising a polyolefin resin composition that contains a polyolefin resin and an inorganic filler, which is suitable for production of a homogenous porous film having no thinner part. SOLUTION: The sheet comprises a polyolefin resin composition that contains 100 parts by weight of a polyolefin resin, 100 to 400 parts by weight of an inorganic filler relatiave to 100 parts by weight of the polyolefin resin, wherein the average particle size of the inorganic filler ranges from 0.02 to 1μm and an acid insoluble part contained in the inorganic filler is 200 ppm or less. COPYRIGHT: (C)2007,JPO&INPIT