Patent ID: 8563106

Claim:
A method for producing a thermoplastic resin composition having reduced outgas in an amount of 1000 μg/g or less and a surface resistivity value of 1×10 11 Ω or less, comprising melt-kneading a styrenic resin (A), and a surface resistivity reducing substance (B) in an amount of 5 to 70 parts by mass relative to 100 parts by mass of the styrenic resin (A), in which said surface resistivity reducing substance (B) is a polyamide elastomer which comprises a hard segment comprising polyamide 12 and a soft segment comprising poly(alkylene oxide) glycol, said polyamide elastomer having a refractive index of 1.5 to 1.53, a melting point of 130 to 160° C., and a surface resistivity of 1×10 8 to 1×10 11 Ω, whereby said thermoplastic resin composition has said reduced outgas and said surface resistivity.