| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin composition, which has not only excellent moldability, but also high rigidity and excellent thermal stability, and further, exhibits excellent impact resistance at a low temperature. SOLUTION: This composition comprises 50 to 90wt.% of (A) component which is a polypropylene component; 1 to 25wt.% of (B) component which is a styrene saturated triblock-copolymer having, in a molecule thereof, polyestyrene chains at both terminals and an ethylene-α-olefin copolymer chain at the central portion; 1 to 25wt.% of (C) component which is a styrene unsaturated triblock-copolymer having, in a molecule thereof, polystyrene chains at both terminals and a polymer chain containing carbon-carbon double bonds at the central portion; 1 to 20wt.% of (D) component which is a polyorganosiloxane having silicon atoms bonded with a hydrogen atom and silicon atoms bonded with a group containing a carbon-carbon double bond; and 7 to 25wt.% of a talc having an average particle size of 2.5μm or less, the sum of the amount of the rubber ingredient contained in component (A) and the amounts of components (B) to (D) being 5 to 30wt.%.
|
