| 摘要 |
PROBLEM TO BE SOLVED: To improve impact resistance, loading resistance and stress crack resistance of a polypropylene blow-molded article in which electrically-conductive materials such as an electrically-conductive carbon black are incorporated, and to hold fluidity and good blow moldabilities while electrical conductivity is exhibited. SOLUTION: The blow molded article is composed of polypropylene as a core layer with at least≥50% of the thickness of the cross-section, and has an electrically-conductive layer in which a carbon black as an electrically-conductive filler is incorporated in the surface layer or the inner layer or the surface layer and the inner layer, and the base resin of the electrically-conductive layer consists of a polyolefin with a melt flow rate of larger than 0.5 g/10 min measured at 190°C and under 2.16 kg load. COPYRIGHT: (C)2009,JPO&INPIT |
