| 摘要 |
PURPOSE:To obtain a, polypropylene resin composite composition, consisting essentially of a highly fluid and highly crystalline polypropylene resin, excellent in balance among physical properties such as injection molding processability, rigidity, impact resistance and a low brittle temperature and well utilizable as large-sized thin-wall parts. CONSTITUTION:This polypropylene resin composite composition comprises [A] 50-90 pts.wt. highly crystalline PP having 10-150g/10min melt flow rate (MFR) and >=50% content of a part insoluble in 1,2,4-trichlorobenzene (TCB) at 120 deg.C or an E-P block copolymer having <4wt.% ethylene content, [B] 5-25 pts.wt. elastomer component comprising the following components (a) and (b) and/or (c) at (40/60) to (80/20) ratio thereof: (a) a hydrogenated block copolymer comprising a vinyl aromatic polymer block A and a polymer block B in which the unsaturation in a nonconjugated diene compound part is hydrogenated; (b) a high-density PE and (c) an ethylene-butene-1 copolymer, and [C] 5-25 pts.wt. granular or platy inorganic filler. The dispersed form of the elastomer component is fine and a two-phase structure is formed. |
