Abstract: Provided is a thermoplastic resin composition suitable for laser welding which has a laser transparency, a good laser weldability, mechanical properties, a high hydrolysis resistance, a laser-welded composite molded article such as a composite article obtained by laser-welding molded resin parts, and a method of laser welding such molded resin articles. The thermoplastic resin composition contains (A) polybutylene terephthalate, (B) polycarbonate, (C) reinforcing fiber, (D) epoxy compound, (E) carbodiimide compound, and (F) phosphorus-based stabilizer.

Abstract: The present invention relates to a polyphenylene sulfide resin composition. The polyphenylene sulfide resin composition contains (A) a polyphenylene sulfide resin, (B) a glycidyl group-containing copolymer containing an ?-olefin and an ?, ?-unsaturated glycidyl ester, (C) a fluororesin (C), and (D) a carbon fiber. The present invention significantly improves the frictional wear characteristics of a molded product made from the polyphenylene sulfide resin composition, particularly at high temperature and in a solution. Further, the molded product made from the polyphenylene sulfide resin composition of the present invention has an excellent impact strength. Thus, the polyphenylene sulfide resin composition of the present invention is useful for electronic device parts, automobile parts, structural parts, mechanical parts, and oil drilling and transportation parts, for example.

Abstract: Provided is a thermoplastic resin composition suitable for laser welding which has a laser transparency, a good laser weldability, mechanical properties, a high hydrolysis resistance, a laser-welded composite molded article such as a composite article obtained by laser-welding molded resin parts, and a method of laser welding such molded resin articles. The thermoplastic resin composition contains (A) polybutylene terephthalate, (B) polycarbonate, (C) reinforcing fiber, (D) epoxy compound, (E) carbodiimide compound, and (F) phosphorus-based stabilizer.

Abstract: Provided is a polyphenylene sulfide (PPS) resin composition suitable for laser marking. Properties for laser marking of the PPS resin composition are improved. The resin articles formed of the PPS resin composition, to which the bar codes and QR codes, etc. are applied, are useful for electronic equipment, automobile parts, structural parts, machine parts, and transport parts, for which traceability is needed. The PPS resin composition contains (A) a PPS resin, (B) a thermoplastic resin having a melting point of 200° C. or less, (C) a carbon black, and (D) an oxygen-deficient bismuth oxide represented by Bi2O(3-x).

Abstract: Provided is a polyphenylene sulfide resin composition with components (A)-(E) for extrusion molding. The resin composition is excellent in processability at the time of extrusion molding, and furthermore, an extruded product with a low appearance gas and a good appearance can be obtained. Therefore, it is useful for electronic equipment, automobile parts, structural parts, machine parts, oil drilling/transport parts, etc.

Abstract: A colorless thermoplastic polyester resin composition that can form a molded article with good appearance is provided. More specifically, a thermoplastic polyester resin composition is provided, which has (A) polybutylene terephthalate resin, (B) polyethylene terephthlatae resin, (C) nigrosine dye, and (D) glass fibers. The blending amounts are (A) in the range of 55-86 wt. % and (B) in the range of 14-45 wt. % based on 100 wt. % of a total of (A) and (B). Further, (C) is in the range of 0.1-1.5 parts by weight based on 100 parts of a total of (A) and (B). Preferably, the carboxy terminal groups of (A) is at 25 (eq/t), the intrinsic viscosity of (A) is in the range of 0.60-0.90, and the melting point of (C) is less than 300° C.

Abstract: A thermoplastic polyester resin composition having: 100 parts by weight total of a resin composition, wherein the resin composition has 75 to 99 wt % of (A) a polybutylene terephthalate resin, and 1.0 to 25 wt % of (B) a polyester elastomer resin and/or an olefin elastomer; and 0.01 to 5 parts by weight of (C) a sorbitan fatty acid ester. The thermoplastic polyester resin composition is useful for making electric/electronic device parts, automobile parts and machine parts, as well as connectors.

Abstract: A colorless thermoplastic polyester resin composition that can form a molded article with good appearance is provided. More specifically, a thermoplastic polyester resin composition is provided, which has (A) polybutylene terephthalate resin, (B) polyethylene terephthlatae resin, (C) nigrosine dye, and (D) glass fibers. The blending amounts are (A) in the range of 55-86 wt. % and (B) in the range of 14-45 wt. % based on 100 wt. % of a total of (A) and (B). Further, (C) is in the range of 0.1-1.5 parts by weight based on 100 parts of a total of (A) and (B). Preferably, the carboxy terminal groups of (A) is at 25 (eq/t), the intrinsic viscosity of (A) is in the range of 0.60-0.90, and the melting point of (C) is less than 300° C.