MULTILAYER BLOW MOLDED BODY OF POLYPROPYLENE

摘要

PURPOSE: To obtain a multilayer blow molded body of polypropylene with good moldability which is formed at least by two layers and in which at least one inner layer is formed from a specified resin composition, and the outermost layer is formed from a specified resin composition or a specified polypropylene composition. CONSTITUTION: At least one layer of an inner layer consisting of at least two layers is formed from a resin composition composed of 100-50 pts.wt. of syndiotactic polypropylene of 3.0 or more Mw/Mn and 0-50 pts.wt. of ethylene-α- olefin elastomer. The outermost layer is formed from a resin composition composed of 99-50 pts.wt. of syndiotactic polypropylene of less than 3.0 Mw/Mn or isotactic polypropylene of 6.0 or less Mw/Mn and 1-50 pts.wt. of ethylene-α- olefin copolymer elastomer or polypropylene of 3.0 or more Mw/Mn of heat- degraded syndiotactic polypropylene or isotactic polypropylene.