THERMOPLASTIC RESIN COMPOSITION

The present invention relates to a thermoplastic resin composition which comprises: a diene-based graft polymer; a first polymer comprising a vinyl cyanide-based monomer unit and an alkyl-substituted styrene-based monomer unit; a second polymer comprising a vinyl cyanide-based monomer unit, an aromatic vinyl-based monomer unit, and a (meth)acrylate-based monomer unit; a third polymer comprising a vinyl cyanide-based monomer unit and an alkyl-unsubstituted styrene-based monomer unit and having a weight-average molecular weight of 80,000 to 220,000 g/mol; a fourth polymer comprising a vinyl cyanide-based monomer unit and an alkyl-unsubstituted styrene-based monomer unit and having a weight-average molecular weight of 1,500,000 to 5,000,000 g/mol; and a fifth polymer comprising an olefin-based monomer unit and having a density of 970 to 1,000 kg/m3 measured in accordance with ASTM D1505, wherein the fifth polymer is comprised in an amount of 0.10 to 3.00 parts by weight with respect to 100 parts by weight of the sum of the diene-based graft polymer, the first polymer, the second polymer, the third polymer, and the fourth polymer.