Abstract: A polyarylene sulfide-derived resin composition which has flowability optimal for insert molding and which can impart superior high- and low-temperature impact properties to a molded body, and an insert-molded body using the resin composition. The resin composition includes a polyarylene sulfide resin having carboxylic terminal groups, an olefin-derived copolymer, glass fibers and calcium carbonate. The weight-average molecular weight of the polyarylene sulfide resin is 15,000-40,000; as copolymerization components, the olefin-derived copolymer includes ?-olefins, glycidyl esters of ?,?-unsaturated acids, and acrylic esters, and the content of the copolymerization component derived from the glycidyl esters in the resin composition is 0.2-0.6 mass %. Further, the fiber diameter of the glass fibers is 9-13 ?m, the average particle diameter of the calcium carbonate is 10-50 ?m, and the total content of glass fibers and the calcium carbonate is 45-55 mass % of the resin composition.

Abstract: A molded article for an electric vehicle part is provided using a thermoplastic polyester resin composition imparting excellent hydrolysis resistance, electric insulation, flame retardance, and tracking resistance. The molded article for an electric vehicle part is formed by molding the thermoplastic polyester resin composition including a thermoplastic polyester resin, which has a terminal carboxyl group amount that is no more than 30 meq/kg, and a flame retardant, in which the tracking resistance measured according to IEC 112, the third edition, after pressurized heat treatment with the 120° C. saturated steam for 200 hours is no less than 500 V, and in which the volume resistivity value measured after the pressurized heating treatment with the 120° C. saturated steam for 200 hours is no less than 1×1015 ?·m.

Abstract: The present invention is improved in an enhanced impact resistance of a molded article of a PAS resin and continuous molding (mold release improvement) in mass production and adhesion to coating. The present invention provides a polyarylene sulfide resin composition comprising (A) 100 parts by weight of a polyarylene sulfide resin, (B) 1-20 parts by weight of a graft copolymer formed by the branching or crosslinking chemical bond of an olefin-based copolymer (b-1) and at least one polymer or copolymer (b-2), the olefin copolymer (b-1) composed mainly of an ?-olefin and an ?, ?-unsaturated carboxylic acid ester without a glycidyl group, the polymer or copolymer (b-2) constituted of a specific repeating unit, and (C) 1-20 parts by weight of an olefin copolymer composed mainly of an ?-olefin and a glycidyl ester of an ?,?-unsaturated carboxylic acid.

Abstract: The present invention is improved in an enhanced impact resistance of a molded article of a PAS resin and continuous molding (mold release improvement) in mass production and adhesion to coating. The present invention provides a polyarylene sulfide resin composition comprising (A) 100 parts by weight of a polyarylene sulfide resin, (B) 1-20 parts by weight of a graft copolymer formed by the branching or crosslinking chemical bond of an olefin-based copolymer (b-1) and at least one polymer or copolymer (b-2), the olefin copolymer (b-1) composed mainly of an ?-olefin and an ?, ?-unsaturated carboxylic acid ester without a glycidyl group, the polymer or copolymer (b-2) constituted of a specific repeating unit, and (C) 1-20 parts by weight of an olefin copolymer composed mainly of an a-olefin and a glycidyl ester of an ?,?-unsaturated carboxylic acid.

Abstract: A polyacetal resin composition which comprises a polyacetal resin (as component A) and one or more members selected from the group consisting of an isocyanate compound, isothiocyanate compound, and modified product thereof (as component B) in an amount of 0.1-15 wt % of the composition, said polyacetal resin composition exhibiting good adhesion properties when bonded with a curable reactive resin adhesive. The present invention also relates to a part comprising a combination of the mold consisting of the composition and the adhesive.