Propylene resin composition and its molded product

摘要: PURPOSE: To obtain the subject composition comprising a propylene block copolymer having specific physical properties, polyolefinic resin, and an inorganic filler, excellent in balance between rigidity impact resistance, useful for electric parts, electronic etc. CONSTITUTION: This comprises (A) 45-70wt.% of (i) 50-97wt.% polypropylene part satisfying xylene- insoluble content 98.0wt.% at 25 deg.C, isotactic pendant fraction 96.5%, average chain length >=90, etc., (ii) 50-3wt.% propylene-ethylene and/or 4-12C α-olefin 20-80mol.% by two site model, blocking property 1.8-5.0, (B) 5-20 wt.% polyolefin resin crystal structure exhibiting a-axial configuration X-ray diffraction method, (C) 5-30wt.% filler such as precipitated calcium carbonate, (D) talc or mica, (the total amount components A-D is 100wt.%).