Patent ID: 8221892

Claim:
An anti-static resin composition comprising: 70% to 95% by mass of a rubber-reinforced resin and 5% to 30% by mass of a polymer type anti-static agent based on 100% by mass of the total of these components, wherein said rubber-reinforced resin consists of a rubber-reinforced copolymeric resin (A1) obtained by polymerization of 20 to 95 parts by mass of a monomer component (b) comprising 60% to 95% by mass of methyl methacrylate (b1), 5% to 40% by mass of an aromatic vinyl compound (b2), and 0% to 10% by mass of a cyanidated vinyl compound (b3) where (b1)+(b2)+(b3)=100% by mass in the presence of 5 to 80 parts by mass of a diene-based rubbery polymer (a) having a volume-average particle diameter of 200 to 400 nm where (a)+(b)=100 parts by mass, or a mixture of said rubber-reinforced copolymeric resin (A1) and a copolymer (A2) of said monomer component (b), said rubber-reinforced resin has haze value of 15% or less, and has the total amount of substances detected at a retention time of 10 to 24 minutes, as determined by pyrolysis-gas chromatography measurement under conditions of a pyrolysis temperature of 423° C. and a pyrolysis time of 30 seconds, of 20,000 μg or less with respect to 1 gram of said rubber-reinforced resin, said polymer type anti-static agent comprising a polyamide 12-based elastomer, and said anti-static resin composition contains the diene-based rubbery polymer (a) in an amount of 5% to 40% by mass, and has the total amount of substances detected at a retention time of 10 to 24 minutes, as determined by pyrolysis-gas chromatography measurement under conditions of a pyrolysis temperature of 423° C. and a pyrolysis time of 30 seconds, of 20,000 μg or less with respect to 1 gram of said composition.