| abstract |
A thermoplastic polyester resin composition capable of providing a molded article superior in impact resistance, heat resistance, cold resistance, and weather resistance, which comprises a blend of l0 to 80% by weight of a thermoplastic polyester (A), 5 to 55% by weight of a polyorganosiloxane-based graft copolymer (B) obtained by graft-polymerizing 95 to l0% by weight of at least one vinyl monomer onto 5 to 90% by weight of a polyorganosiloxane rubber which exhibits a degree of swelling of 3.0 to l5.0 measured in toluene at 25°C and contains a graft-linking agent, 5 to 55% by weight of a thermoplastic polyester elastomer (C), and 0 to 60% by weight of a filler (D), wherein the total amount of the components (A) to (D) is l00% by weight. |