| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylenic resin compsn. excellent in the balance among flowability, stiffness, impact resistance, tensile elongation, and molded appearance. SOLUTION: This compsn. comprises 100 pts.wt. compsn. consisting of 50-95wt.% polypropylene (I) having a flexural modulus of 8.000kgf/cm<2> (785MPa) or higher and a melt flow rate of 10g/10min or higher and 50-5wt.% olefinic elastomer (II). 0.1-50 pts.wt. hydrogenated block copolymer component (III) consisting of a star-type hydrogenated block copolymer (a) comprising 5-60wt.% polybutadiene block (A) having a 1,2-vinyl bond content lower than 25wt.% and 95-40wt.% conjugated diene polymer block (B) having a content of conjugated diene unit of 50wt.% or higher, the 1,2-vinyl bond content in the conjugated diene units being 65wt.% or higher, and a linear block copolymer (b) comprising 5-60wt.% polymer block A and 95-40wt.% polymer block B, and 0-50 pts.wt. inorg. filler. |
