COMPOSITE POLYESTER RESIN MOLDINGS

摘要

Composite polyester resin moldings comprising a resin composition (A) consisting of polybutylene terephthalate (A1), an inorganic filler (A2) and a modified ethylenic copolymer (A3) obtained by the graft polymerization of an ethylene with an alpha , beta -unsaturated carboxylic acid or an acid derivative thereof and a metal (B), the metal (B) being partially or wholly coated with the resin composition (A), wherein the graft copolymer (A3) is present in the form of particles dispersed in the resin composition molding part constituting the composite molding, and the diameter of each dispersed particle is 1 to 3 mu m. These moldings have excellent thermal shock resistance and residence stability in a molding cycle such as that of insert molding.