| abstract |
A thermoplastic resin composition, comprising: a graft copolymer (B) obtained by polymerizing a vinyl-based monomer component (m1) comprising an aromatic vinyl compound and a vinyl cyanide compound in the presence of a polymer of compound rubber (A) that has been formed from a polyorganosiloxane (Aa), and a poly (meth) acrylate ester (Ab) having units derived from a (meth) acrylate ester and any one of, or both , units derived from a crosslinking agent and units derived from a graft bonding agent, a (meth) acrylate ester resin (C) obtained by polymerizing a vinyl-based monomer component (m2) comprising a (meth) acrylate ester, a maleimide-based compound and an aromatic vinyl compound, and a graft copolymer (I) obtained by polymerizing a vinyl-based monomer component (m4) in the presence of a copolymer based on ol efina, where the amount of the polyorganosiloxane (Aa) with respect to the total mass (100% by mass) of the compound rubber polymer (A) is 1 to 20% by mass, the volume average particle size of the polymer of Compound rubber (A) is 0.05 to 0.15 μm, and with respect to the total mass (100% by mass) of the vinyl-based monomer component (m2), the amount of the maleimide-based compound is 1 30% by mass and the amount of the aromatic vinyl compound is 5.5-15% by mass. |