| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylene resin composition which has improved impact strength, heat resistance and scratch resistance, can be produced at a low cost, is lightweight, and has remarkably improved plastic part recyclability. SOLUTION: This polypropylene resin composition characterized by comprising 20 to 60 wt.% of low mol.wt. ethylene-propylene copolymer having a melt index of 5 to 40 g/10 min and an ethylene content of 5 to 20 wt.%, 20 to 60 pts.wt. of high mol.wt. ethylene-propylene copolymer having an ethylene content of 5 to 20 wt.%, and 5 to 40 wt.% of an inorganic filler having a particle diameter of 1 to 10μm.
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