| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary battery jar material which keeps water-vapor resistant permeability, a heat-resistant creep property, and an impact-resistant property. SOLUTION: This resinous composition includes at least one kind of components (1) to (4), namely (1) a specified molecular weight of a hydrogenated block copolymer, (2) high density polyethylene and the hydrogenated block copolymer, (3) the high density polyethylene and a crystalline hydrogenated block copolymer, and (4) polyphenylene ether and the hydrogenated block copolymer, with respect to 100 pts.wt. of polypropylene resin that is not less than 0.905 g/cm<3> in the density of a propylene copolymer, and is 0.1 to 12 in MFR. |
