| 摘要 |
PURPOSE:To obtain the titled parts having excellent low-temperature impact, heat resistance, appearance, etc., by dynamically heat-treating a mixture of a specific crosslinkable type rubber, a decomposition type olefinic resin and a softener for rubber in a specific ratio in the presence of an organic peroxide and molding the mixture. CONSTITUTION:A mixture of (A) 10-35wt% peroxide crosslinkable type rubber which has Mooney viscosity of ML1+4(100 deg.C)10-ML1+8(120 deg.C)300, <=30 iodine value and 25-50wt% propylene content, (B) 60-70wt% peroxide decomposition type olefinic resin having 0.1-50g/10min melt flow rate and (C) 5-25wt% softener for rubber is dynamically heat-treated in the presence of an organic peroxide by kneading in molten state, etc., to give a thermoplastic resin composition having 2,000-4,500kg/cm<2> modulus in flexure. Then the composition is molded to give the aimed exterior automotive trim parts. |
