| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylene-based blow molded product excellent in the uniformity of thickness and transparency. SOLUTION: The polypropylene-based blow molded product is obtained by molding a propylene-based resin composition comprising a polymer mixture mixed 10-100% by weight of propylene-based polymer (X) satisfying the requirements defined following (i)-(vi) with 0-90% by weight of propylene-based polymer (Y) by the blow molding, wherein (i) MFR is 0.5-20 g/10 minutes, (ii) a Q value measured by GPC is 3.5-10.5, (iii) a ratio of a component having molecular weight (M) of≥2,000,000 by GPC is≥0.4% by weight to less than 10% by weight, (iv) a component eluted at≤40°C by TREF is≤3.0% by weight, (v) an isotactic triad fraction (mm) is≥95%, and (vi) the degree (λmax) of strain hardening as measured by elongational viscosity is≥6.0. COPYRIGHT: (C)2010,JPO&INPIT |
