| 摘要 |
PROBLEM TO BE SOLVED: To obtain a polypropylene resin composition suitable for a water- cooled inflation film which is excellent in stability of film formation, transparency, perspective property, opening property, sliding property, blocking resistance, damage resistance, a mechanical physical balance between MD and TD and impact resistance, and useful as a package film, and the like, for foods and general miscellaneous goods. SOLUTION: This polypropylene resin composition suitable for the water- cooled inflation film contains the following components (1) to (3): component (1); 100 pts.wt. of a crystalline polypropylene polymerized by using a metallocene catalyst having the following characteristics of (a) to (d) ((a) MFR is 2.0-20 g/10 min, (b) a melting point (Tp ) estimated by DSC is 110-150 deg.C, (c) in an elution curve obtained by elution fractionation of temperature elevation, a difference between a temperature capable of extracting 20 wt.% (T20 ) and a temperature capable of extracting 80 wt.% (T80 ) is 4-10 deg.C, and (d) a Q value is 2.6-3.8), component (2); 0.1-0.7 pts.wt. of synthetic silica having a specific physical property, and component (3); 0.05-0.7 pts.wt. of a fatty acid amide having a melting point of nor more than 95 deg.C. |
