| 摘要 |
PURPOSE:To obtain a polypropylene resin composition which is excellent in impact resistance and rigidity when formed into sheet, is excellent in drawdown in forming, and facilitate deep drawing by thermoforming. CONSTITUTION:A polypropylene resin composition consisting of a polypropylene homopolymer and an ethylene/propylene elastomeric copolymer [EPR], in which the weight-average molecular weight of the EPR is at least 500,000, the amount of the EPR based on the whole composition [EPR] is 5 to 15wt.%, the mount of ethylene based on the whole composition [E] and [EPR] satisfy the relation of the formula; -0.13+2.82[E]<=[EPR]<=0.07+4.17[E] and which has a melt flow rate of at most 1.0g/10min. |
