| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated porous film excellent in air permeability, flexibility, barrier propertries or the like. SOLUTION: The laminated porous film, which is obtained by molding a composition containing a polyolefin resin, a filler and a third component in a molten state to form a film and stretching the film, consists of an X-layer containing an amide compound as the third component and a Y-layer containing at least one of an ester compound, a hydrocarbon polymer having a side chain, a silicone polymer and mineral oil as the third component and a thickness ratio of the X-layer and the Y-layer is 1/10-10/1. |
