Abstract: The resin composition according to one aspect of the present invention includes a thermoplastic resin (A), a phosphorus-containing flame retardant (B), and a copolymer (C) of an ?-olefin and an unsaturated carboxylic acid, wherein: a ratio of the phosphorus-containing flame retardant (B) to the thermoplastic resin (A) is 5% by mass or more and 400% by mass or less, and a ratio of the copolymer (C) to the phosphorus-containing flame retardant (B) is 10% by mass or less.

Abstract: An electrically conductive thermoplastic resin composition contains (i) 100 parts by mass of a thermoplastic resin component, which consists of 1 to 100% by mass of a polycarbonate resin (A) and 0 to 99% by mass of a rubber-reinforced resin (B) obtained by polymerizing at least one vinyl monomer selected from the group consisting of an aromatic vinyl, a vinyl cyanide and a (meth)acrylate ester in the presence of a rubbery polymer, and (ii) 0.1 to 20 parts by mass of a fine carbon fiber (C), wherein a graphite-net plane consisting solely of carbon atoms forms a temple-bell-shaped structural unit comprising closed head-top part and body-part with open lower-end, 2 to 30 of the temple-bell-shaped structural units are stacked sharing a common central axis to form an aggregate, and the aggregates are connected in head-to-tail style with a distance to form the fiber.

Abstract: The graft copolymer (G) of the present invention is a graft copolymer which is prepared by emulsion graft polymerization of a rubber polymer comprising 0-50% by weight of a butadiene unit and 50-100% by weight of a (meth)acrylate unit and at least one monomer selected from aromatic alkenyl compound, methacrylate, acrylate and vinyl cyanide compound, said graft copolymer containing 0.5-2.0% by weight of an emulsifier residue. The thermoplastic resin composition containing the graft copolymer of the present invention causes less gas evolution during the molding, provides a molded article with good gloss of molding, and has excellent weather resistance, impact resistance and fluidity.

Abstract: A copolymer comprising a maleimide-based monomer unit and/or an unsaturated dicarboxylic acid anhydride-based monomer unit, where the copolymer contains an unreacted maleimide-based monomer and/or an unsaturated dicarboxylic acid anhydride-based monomer in an amount of 200 ppm or less and an adduct of a compound other than the polymerized units of the copolymer and the maleimide-based monomer and/or unsaturated dicarboxylic acid anhydride-based monomer in an amount of 0.1 to 3,000 ppm.

Abstract: A maleimide-based copolymer containing maleimide monomer units (a-1), aromatic vinyl monomer units (a-2) and other vinyl monomer units (a-3), wherein,(I) the content of residual maleimide monomer in the copolymer is 0.1% by weight or less, and the content of whole volatiles other than the maleimide monomer is 0.5% by weight or less;(II) a compound obtained from at least one monomer selected from the group consisting of a maleimide monomer, an aromatic vinyl monomer and other vinyl monomers, having a weight-average molecular weight of from 200 to 1,000, is contained in an amount of 2 to 10% by weight;(III) the copolymer has a yellow index of 30 or less; and(IV) the copolymer has an intrinsic viscosity of from 0.3 to 1.5.

Abstract: A flame retardant polyphenylene ether resin composition excellent in heat aging resistance and impact resistance is disclosed. The composition comprises(A) a polyphenylene ether resin,(B) an aromatic alkenyl resin,(C) a modified polyorganosiloxane having an average particle diameter of 0.08 to 0.6 .mu.m,(D) a phosphate, and(E) a particulate silicic acid.