Teijin Limited

Mitsuru Doteguchi

Naonobu Tadokoro

A polyester resin composite molded article composed of a resin composition (A) comprising a polybutylene terephthalate (A1), an inorganic filler (A2) and a modified ethylenic copolymer (A3) produced by the graft-polymerization of an &agr;, &bgr;-unsaturated carboxylic acid or its acid derivative and a metal (B) wherein a part or total of the metal (B) is covered with the resin composition (A), the graft copolymer (A3) is present in the form of dispersed particles in the molded part of the resin composition constituting the composite molded article, and the diameters of the dispersed particles are between 1 and 3 &mgr;m. The present invention provides a polyester resin composite molded article having excellent thermal shock resistance and exhibiting retention stability in a molding cycle in insert molding, etc.

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Chiba, Japan

Mitsuru Doteguchi