| 摘要 |
PROBLEM TO BE SOLVED: To provide superior transparency, impact resistance and the like by forming a polypropylene injection molded body composed of polypropylene resin and a specified ethylene.α-olefin random copolymer or the like. SOLUTION: A polypropylene injection molded body is composed of polypropylene resin, an ethylene.α-olefin random copolymer and a propylene.ethylene.1-butane random copolymer. The ethylene.α-olefin random copolymer is provided with 0.9 g/cm<3> density or less, 0.1-50 g/10 minutes melt flow rate(MFR) and the molecular weight distribution based on gel permeation chromatography(GPC) is 3 or less. The propylene.ethylene.1-butane random copolymer contains 50-95 molar % propylene unit, 2-30 molar % ethylene unit and 10-40 molar % 1-butane unit. The content of 1-butane unit is set larger than the content of ethylene unit. Also MFR is set to 0.1-50 g/10 minutes, and the molecular weight distribution based on GPC is set to 3 or less. |
