| 摘要 |
PURPOSE:To obtain the titled molded article excellent in heat cycle characteristics, free from cracking and favorable in uniformness of luster, weld appearance or the like, wherein a metallic core material is covered by a specified propylene-ethylene random copolymer. CONSTITUTION:The metallic core material is covered by a propylene-ethylene random copolymer havng an ethylene content of 1-6wt%, preferably 2-5wt% and a melt flow rate of 0.1-20g/10min, preferably 0.5-6g/10min to obtain the objective molded article. It is preferable to add 3-10% of glass fibers to the copolymer to enhance stiffness and heat resistance, and to add polypropylene graft-modified with an unsaturated organic acid (dehydrate) or the like to the copolymer to enhance weld strength and improve adhesion between the glass fibers and the resin. |
