Patent ID: 7645370

Claim:
A process for producing a plated resin molded article, comprising the steps of: melt-kneading a thermoplastic resin consisting essentially of 70-30% by weight of a polyamide-based resin and 30-70% by weight of a styrene-based resin selected from the group consisting of a polystyrene resin, an acrylonitrile-butadiene-styrene copolymer resin, an acrylonitrile-styrene copolymer resin and a styrene-methacrylate copolymer resin with a water-soluble substance of at least one poly-valent alcohol selected from the group consisting of pentaerythritol and dipentaerythritol in an amount of 0.01 to 15 parts by mass per 100 parts by mass of the thermoplastic resin and, optionally, a surfactant selected from the group consisting of an α-olefin sulfonate, a potassium salt of rosin acid, potassium oleate and potassium laurate in an amount of 0.01 to 10 parts by mass per 100 parts by mass of the thermoplastic resin, forming a thermoplastic resin molded article consisting of the thermoplastic resin and the water-soluble substance and, optionally, the surfactant, contact-treating the thermoplastic resin molded article with an aqueous solution of an acid not containing a heavy metal or an aqueous solution of a base not containing a heavy metal, treating the thermoplastic resin molded article with a catalyst-imparting liquid to form a resultant thermoplastic resin molded article, treating the resultant thermoplastic resin molded article with an activating liquid, performing electroless plating on a surface of the resultant thermoplastic resin molded article that has been treated with the acid or base and the catalyst-imparting liquid, and then performing metal-electroplating on a surface of the resultant thermoplastic resin molded article.