| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylene resin composition having excellent coating properties that is applicable for parts which need to be coated such as a bumper in use for an automobile. SOLUTION: A polypropylene resin composition comprises (1) 40-99 wt.% polypropylene resin, (2) 1-60 wt.% ethylene /α-olefin copolymer elastomer, (3) per 100 pts.wt. mixture of the components (1) and (2), 20-50 pts.wt. low molecular weight polypropylene resin modified by an unsaturated carboxylic acid or anhydride, and (4) per 100 pts.wt. mixture of the components (1) and (2), 0.1-20 pts.wt. epoxy resin represented by the formula (wherein n is a whole number of 1-4; and A is a multivalent group having the bonding number of n and is a bisphenol A type ether, a propylene oxide type ether or an ethylene oxide type ether). |
