| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylene film which is excellent in the balance of transparency, slip properties and low temperature impact resistance.SOLUTION: The multilayered film is constituted by laminating a b-layer, which comprises a polypropylene resin other than a polypropylene copolymer at least, on one side of an a-layer comprising the polypropylene copolymer, which contains 50-95 wt.% of a polymer component (component A) based on a structural unit originating from propylene and 5-50 wt.% a polymer component (component B) of propylene, ethylene and a ≥4C α-olefin characterized in that the content (X) of the structural unit originating from propylene is 10≤X<50 wt.%, the content (Y) of a structural unit originating from ethylene is 50<Y≤70 wt.% and the content (Z) of a structural unit originating from the ≥4C α-olefin is 0<Z≤20 wt.%, and characterized in that the thickness ratio (a-layer/b-layer) of the a-layer and the b-layer is larger than 1. |
