| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a resin composition excellent in the balance between the workability in film forming and the piercing strength of the resultant film, a sheet and a porous film obtained using the resin composition, and a separator for a cell and the cell obtained using the same.SOLUTION: A resin composition contains filer, ultrahigh molecular weight polyolefin and polyolefin wax having weight average molecular weight of 700 to 6000. When the weight of the ultrahigh molecular weight polyolefin contained in the resin composition is expressed by W1, the weight of the polyolefin wax having weight average molecular weight of 700 to 6000 is expressed by W2, and the intrinsic viscosity of the ultrahigh molecular weight polyolefin is expressed by [η], the relation satisfies following formula (1): [η]×4.3-21<{W2/(W1+W2)}×100<[η]×4.3-8.</p> |
