| 摘要 |
PROBLEM TO BE SOLVED: To provide a propylene polymer composition excellent in rigidity, hardness, heat resistance, moldability and also excellent in toughness such as impact resistance and tensile elongation. SOLUTION: This propylene polymer composition comprises 25-94wt.% propylene block copolymer (A) having an MFR of 10-400g/10min, containing 3-20wt.% ordinary-temperature-n-decane-solubles having an intrinisic viscosity [η]of 4-10dl/g and containing 30-50mol% ethylene unit and, having an MFR of the polypropylene component of 20-450g/10min and (I5 ), a pentad isotacticity, of 0.95 or above (as determined by the<13> C-NMR method), 5-45wt.% ethylene/1- hexene random copolymer (B) containing 7-20mol% units of 1-hexene, an intrinsic viscosity [η] of 1.0-5dl/g, a glass transition point (Tg) of -50 deg.C or below, and a density of 0.860-0.900g/cm<3> and 1-30wt.% inorganic filler (C).
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