Resin composition for plating, and plated molded article

Abstract

To provide a resin composition for plating and a plated molded article which are excellent in impact resistance and fluidity and which satisfy plating adhesion strength, plating deposition rate and thermal cycle resistance in a well-balanced manner. A resin composition for plating, containing a polycarbonate resin (A), a graft copolymer (B) and a copolymer (C), wherein the resin composition satisfies the following conditions (1) to (5): (1) a content of the polycarbonate resin (A) is 20 to 60% by mass based on 100% by mass of a total of (A), (B) and (C); (2) the graft copolymer (B) is a graft copolymer obtained by graft polymerization of a rubbery polymer and a monomer component including an aromatic vinyl-based monomer; (3) the copolymer (C) is a copolymer obtained by polymerization of a monomer component including an aromatic vinyl-based monomer and a vinyl cyanide-based monomer; (4) a content of the rubbery polymer is 7 to 20% by mass relative to the resin composition; and (5) a content of an oligomer component is less than 1% by mass relative to the resin composition.

1 . A resin composition for plating, comprising a polycarbonate resin (A), a graft copolymer (B) and a copolymer (C), wherein the resin composition satisfies the following conditions (1) to (5):
 (1) a content of the polycarbonate resin (A) is 20 to 60% by mass based on 100% by mass of a total of (A), (B) and (C);   (2) the graft copolymer (B) is a graft copolymer obtained by graft polymerization of a rubbery polymer and a monomer component comprising an aromatic vinyl-based monomer;   (3) the copolymer (C) is a copolymer obtained by polymerization of a monomer component comprising an aromatic vinyl-based monomer and a vinyl cyanide-based monomer;   (4) a content of the rubbery polymer is 7 to 20% by mass relative to the resin composition; and   (5) a content of an oligomer component is less than 1% by mass relative to the resin composition.   
     
     
         2 . The resin composition for plating according to  claim 1 , wherein the content of the polycarbonate resin (A) is 30 to 50% by mass based on 100% by mass of the total of (A), (B) and (C). 
     
     
         3 . The resin composition for plating according to  claim 1 , wherein the content of the rubbery polymer is 10 to 15% by mass relative to the resin composition. 
     
     
         4 . The resin composition for plating according to  claim 1 , wherein a content of the vinyl cyanide-based monomer forming the copolymer (C) is 30 to 40% by mass relative to the copolymer (C). 
     
     
         5 . A plated molded article where a molded article obtained by molding the resin composition for plating according to  claim 1  is plated.