Abstract: An object of the present invention is to provide a thermoplastic resin composition, an extruded sheet and a copper clad laminate excellent in processability such as extrusion processability and injection moldabilities, solder heat resistance and mechanical properties such as bending properties, durability and drilling processability and satisfying low dielectric loss necessary for high frequency band telecommunication parts. The present invention relates to a shaped article composed of a resin composition prepared by adding a specific graphite to a resin composition containing (a) a polyarylene sulfide resin and (b) a polyphenylene ether resin as main components, and a multilayer extruded sheet comprising an inner layer of a resin composition prepared by adding a metal oxide to a resin composition containing (a) a polyarylene sulfide resin and (b) a polyphenylene ether resin as main components and an outer layer of a resin composition to which no metal oxide is added.

Abstract: Disclosed is a flame retardant, high precision resin mechanical part for use in office automation machines required to function with high accuracy and high precision, which is made by injection molding a thermoplastic resin composition comprising: (A) an amorphous thermoplastic resin; (B) an inorganic filler in a scale form; and (C) a specific phosphoric acid ester in which phosphoric acid ester groups are bonded through a bisphenol.

Abstract: Foamable synthetic resin materials are plastified and injected into a mold cavity in an amount less than the volume of mold cavity and a body of gas under pressure is charged in the mold cavity in such manner that it is enclosed by said resin materials. When the injected resin materials sets at least at its outer surface layer, the gas is discharged out of the mold cavity so that the foamable resin materials can be expanded in the hollow portion formed by the pressure of the charged gas. Said foamable resin materials may be surrounded by unfoamable resin materials in the mold cavity.

Abstract: A first thermoplastic resin for forming the shell of an article is charged into the front portion of an injection cylinder and a second thermoplastic resin for forming the core of the article is charged into the rear portion of the injection cylinder. Both resins are substantially separated, being in contact only a central area of the cross-sectional plane of the injection cylinder. These thermoplastic resins are injected in a mass into a mold cavity with the second resin enveloped by the first resin, and finally solidified in the mold cavity resulting in a molded article having sandwich construction. Various sandwich articles can be obtained easily by means of a single injection molding machine. The process also allows repeated injection operations without exposure of the core material on the surface of the molded article.