Thermoplastic resin composition, molded resin article thereof, and coated article

A molded resin article obtained by molding a thermoplastic resin composition, wherein the thermoplastic resin composition comprises:

• 35 to 75 parts by mass of an aromatic polycarbonate resin (A);
• 15 to 35 parts by mass of a rubber-containing graft copolymer (B) obtained by copolymerizing a monomer mixture containing an aromatic vinyl compound and a vinyl cyanide compound in the presence of a rubber polymer;
• and
• 10 to 50 parts by mass of a rigid copolymer mixture (C) containing a rigid copolymer (C-I) and a rigid copolymer (C-II), wherein
• the thermoplastic resin composition does not comprise phosphorus-based flame retardants,
• in the rigid copolymer mixture (C), an amount of the rigid copolymer (C-II) is 20% to 80% by mass in the mixture,
• the rigid copolymer (C-I) is a polymer containing a monomer unit derived from an aromatic vinyl compound and a monomer unit derived from a vinyl cyanide compound and is a rigid copolymer in which 20% by mass or more and less than 35% by mass of a total mass of the rigid copolymer (C-I) is the monomer unit derived from the vinyl cyanide compound,
• the rigid copolymer (C-II) is a polymer containing a monomer unit derived from an aromatic vinyl compound and a monomer unit derived from a vinyl cyanide compound and is a rigid copolymer in which 40% to 50% by mass of a total mass of the rigid copolymer (C-II) is the monomer unit derived from the vinyl cyanide compound,
• the thermoplastic resin composition contains an acetone soluble component of which reduced viscosity (ηsp/c) is 0.3 to 0.8 dl/g, and
• a component content of the vinyl cyanide compound in the acetone soluble component is 25% to 40%,
• wherein the molded resin article is configured to suppress absorption of a coating material applied to the molded resin article.

A coated article formed of a molded resin article obtained by molding a thermoplastic resin composition, wherein the thermoplastic resin composition comprises:

• 35 to 75 parts by mass of an aromatic polycarbonate resin (A);
• 15 to 35 parts by mass of a rubber-containing graft copolymer (B) obtained by copolymerizing a monomer mixture containing an aromatic vinyl compound and a vinyl cyanide compound in the presence of a rubber polymer;
• and
• 10 to 50 parts by mass of a rigid copolymer mixture (C) containing a rigid copolymer (C-I) and a rigid copolymer (C-II), wherein
• the thermoplastic resin composition does not comprise phosphorus-based flame retardants,
• in the rigid copolymer mixture (C), an amount of the rigid copolymer (C-II) is 20% to 80% by mass in the mixture,
• the rigid copolymer (C-I) is a polymer containing a monomer unit derived from an aromatic vinyl compound and a monomer unit derived from a vinyl cyanide compound and is a rigid copolymer in which 20% by mass or more and less than 35% by mass of a total mass of the rigid copolymer (C-I) is the monomer unit derived from the vinyl cyanide compound,
• the rigid copolymer (C-II) is a polymer containing a monomer unit derived from an aromatic vinyl compound and a monomer unit derived from a vinyl cyanide compound and is a rigid copolymer in which 40% to 50% by mass of a total mass of the rigid copolymer (C-II) is the monomer unit derived from the vinyl cyanide compound,
• the thermoplastic resin composition contains an acetone soluble component of which reduced viscosity (ηsp/c) is 0.3 to 0.8 dl/g, and
• a component content of the vinyl cyanide compound in the acetone soluble component is 25% to 40%.