| 摘要 |
PURPOSE: Provided is a resin composition for automobile bumper, which has excellent cold impact strength, rigidity, heat resistance, and fluidity, and thus is useful for production of injection moldings. CONSTITUTION: The resin composition predominantly consisting of ethylene propylene copolymer resin, is characterized by comprising 40-70 wt% of ethylene propylene copolymer resin having ethylene content of 8-20% and melt index of 10-30 g/10 minutes(230 deg.C, 2.16kgf); 5-10 wt% of thermoplastic elastomer rubber consisting of any one of ethylene-propylene rubber(EPR), ethylene-propylene-diene rubber(EPDM), ethylene-octene rubber(EOR), or a mixture thereof; and 30-50 wt% of long glass fiber having average particle length of 4-6 mm and diameter of 15-20 micrometers, which is a mineral filler. |
