| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition for a vehicle lighting fixture, which is excellent in tapping strength in mounting, especially in tapping strength under a low-temperature environment, and a molded product obtained from the resin composition.SOLUTION: A thermoplastic resin composition includes a graft copolymer (A) and a copolymer (B). The graft copolymer (A) is a graft copolymer: which is obtained by graft-polymerizing at least one monomer selected from an aromatic vinyl monomer, a vinyl cyanide monomer, and another vinyl monomer copolymerizable with them to a composite rubber composed of a conjugated diene-based rubber-like polymer and a crosslinked acrylic acid ester polymer; of which the tetrahydrofuran-soluble part of the composite rubber has a weight average molecular weight expressed in terms of polystyrene of 60,000 or more; and of which the degree of swelling against toluene of the composite rubber is 7.0 or more. The copolymer (B) is a copolymer of an aromatic vinyl monomer and a vinyl cyanide monomer, and if necessary, another vinyl monomer. |
