| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer polypropylene film excellent in printing characteristics and transparency in addition to blocking resistance, dispersibility and fisheye properties.SOLUTION: There is provided a multilayer polypropylene film comprising at least two layers of a layer (1) and a layer (2), where the layer (1) is composed of a resin composition (1) comprising 0.01 to 0.2 pt.wt. of shaped amorphous silica (C) having an average particle diameter of 1 to 3 μm, a pore volume of 0.1 to 0.5 ml/g, an oil absorption of 50 to 150 ml/100 g and a specific surface area of 100 to 200 m/g based on 100 pts.wt. of a propylene-based polymer (A), the layer (2) is composed of a resin composition (2) comprising 0.1 to 0.5 pts.wt. of amorphous silica (D) having an average particle diameter larger than the shaped amorphous silica (C) based on 100 pts.wt. of a propylene-based polymer (B) and the blending amount of the amorphous silica (D) in the layer (2) is larger than the blending amount of the shaped amorphous silica (C) in the layer (1).SELECTED DRAWING: None |
