| 摘要 |
PROBLEM TO BE SOLVED: To obtain a vessel having excellent low-temperature impact strength, transparency and moistureproofness and excellent moldability by orienting blow molding polypropylene having specified melt flow rate. SOLUTION: Polypropylene having 5 to 80 of melt flow rate is orienting blow molded to form an oriented polypropylene vessel. The resin composition of the vessel contains polypropylene having 2.5% or more or more preferably 3.5% or more of ethylene content added with nucleating agent. Thus, the nucleating agent is added to the polypropylene to improve the transparency. Further, when organic phosphate is used as the nuclear, the transparency can be further improved, and the odor can be reduced. |
