A thermoplastic resin composition according to the present invention comprises: a rubber-modified aromatic vinyl-based copolymer resin; an aliphatic polyamide resin; a poly(ether ester amide) block copolymer; a modified polyolefin resin; and a heat resistant vinyl-based copolymer resin. The thermoplastic resin composition exhibits excellent anti-static properties, heat resistance and mechanical properties.

Provided are a method of preparing a graft copolymer and a graft copolymer, the method including: batch-adding a first molecular weight controlling agent, a diene-based rubber polymer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to a reactor to initiate polymerization; and after the initiation of polymerization, continuously adding a second molecular weight controlling agent, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to the reactor to perform polymerization, wherein the second molecular weight controlling agent includes an alkyl styrene-based dimer and a mercaptan-based compound in a weight ratio of 40.0:60.0 to 70.0:30.0, and a weight ratio of the first molecular weight controlling agent and the second molecular weight controlling agent is 5.0:95.0 to 25.0:75.0.

Provided are a method of preparing a graft copolymer and a graft copolymer, the method including: batch-adding a first molecular weight controlling agent, a diene-based rubber polymer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to a reactor to initiate polymerization; and after the initiation of polymerization, continuously adding a second molecular weight controlling agent, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to the reactor to perform polymerization, wherein the second molecular weight controlling agent includes an alkyl styrene-based dimer and a mercaptan-based compound in a weight ratio of 40.0:60.0 to 70.0:30.0, and a weight ratio of the first molecular weight controlling agent and the second molecular weight controlling agent is 5.0:95.0 to 25.0:75.0.

Provided are a method of preparing a graft copolymer and a graft copolymer, the method including: batch-adding a first molecular weight controlling agent, a diene-based rubber polymer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to a reactor to initiate polymerization; and after the initiation of polymerization, continuously adding a second molecular weight controlling agent, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer to the reactor to perform polymerization, wherein the second molecular weight controlling agent includes an alkyl styrene-based dimer and a mercaptan-based compound in a weight ratio of 40.0:60.0 to 70.0:30.0, and a weight ratio of the first molecular weight controlling agent and the second molecular weight controlling agent is 5.0:95.0 to 25.0:75.0.

Disclosed is a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same, including a thermoplastic resin composition including 100 parts by weight of a base resin including a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer (A); a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer (B); an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (C); a vinyl cyanide compound-aromatic vinyl compound copolymer (D); and a branched vinyl cyanide compound-aromatic vinyl compound copolymer (E) and a high-density polyethylene resin (F), a method of preparing the thermoplastic resin composition, and a molded article manufactured using the thermoplastic resin composition.

Disclosed is a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same, including a thermoplastic resin composition including 100 parts by weight of a base resin including a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer (A); a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer (B); an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (C); a vinyl cyanide compound-aromatic vinyl compound copolymer (D); and a branched vinyl cyanide compound-aromatic vinyl compound copolymer (E) and a high-density polyethylene resin (F), a method of preparing the thermoplastic resin composition, and a molded article manufactured using the thermoplastic resin composition.

Disclosed is a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same, including a thermoplastic resin composition including 100 parts by weight of a base resin including a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer (A); a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound copolymer (B); an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (C); a vinyl cyanide compound-aromatic vinyl compound copolymer (D); and a branched vinyl cyanide compound-aromatic vinyl compound copolymer (E) and a high-density polyethylene resin (F), a method of preparing the thermoplastic resin composition, and a molded article manufactured using the thermoplastic resin composition.

Disclosed is a thermoplastic resin composition having excellent compatibility between a base resin and additives that may prevent aggregation of a metal pigment, and a molded article including the same. Also disclosed is a molded article manufactured using the thermoplastic resin composition, which may reduce flow marks on a metallic surface, and thus appearance and gloss may be excellent, injection quality and antistatic properties may be excellent, and the molded article may be widely used in various fields such as electronics.

Disclosed is a thermoplastic resin composition having excellent compatibility between a base resin and additives that may prevent aggregation of a metal pigment, and a molded article including the same. Also disclosed is a molded article manufactured using the thermoplastic resin composition, which may reduce flow marks on a metallic surface, and thus appearance and gloss may be excellent, injection quality and antistatic properties may be excellent, and the molded article may be widely used in various fields such as electronics.

Disclosed is a thermoplastic resin composition having excellent compatibility between a base resin and additives that may prevent aggregation of a metal pigment, and a molded article including the same. Also disclosed is a molded article manufactured using the thermoplastic resin composition, which may reduce flow marks on a metallic surface, and thus appearance and gloss may be excellent, injection quality and antistatic properties may be excellent, and the molded article may be widely used in various fields such as electronics.