| 摘要 |
PURPOSE:A polypropylene resin composition that is produced by adding a specifically composed ethylene-alpha-olefin-polyene terpolymer rubber, thus being suitably used as an injection molding material or film or sheet for food wrapping because of its high toughness, impact strength and moldability. CONSTITUTION:(A) An ethylene-alpha-olefin-polyene terpolymer rubber in which the molar ratio of ethylene to a 4-10C alpha-olefin such as 1-butene is 86/24-95/5, including a polyene with an iodine value of preferably 8-30 such as 1,4-hexadiene, is incorporated with (B) a polypropylene resin with an isotactic index of preferably higher than 90% and melt index of 5-20 at a weight ratio of 70/30-95/5 the resin/ the rubber to give the objective polypropylene resin composition. |
