| 摘要 |
PURPOSE:To prepare a resin compsn. excellent in the balance between impact resistance and stiffness at a low temp. as well as in flowability during molding by compounding a polyolefin resin with two specific hydrogenated block copolymers. CONSTITUTION:A resin compsn. is prepd. by compounding 95-50 pts.wt. polyolefin resin with 5-50 pts.wt. hydrogenated block copolymer component comprising 10-40wt. % hydrogenated block copolymer which comprises at least two polymer blocks A consisting mainly of a vinyl arom. compd. and at least one polymer block B consisting mainly of a conjugated diene compd. and has a degree of hydrogenation in the diene parts of at least 80% and a high vinyl content (40-60%) and 90-60wt.% hydrogenated block copolymer which has a number-average mol.wt. lower than that of the foregoing copolymer but higher than 45 thousand and a high vinyl content (40-60%), the arithmetic mean of the number-average mol.wts. of the two copolymers being 50,000-150,000. |
