| 摘要 |
PURPOSE: A multi-layered polyester resin molding is provided to reduce the transition of heavy metal component such as antimony which is residue catalyst component from the polyester resin molding and to be economically manufactured. CONSTITUTION: A multi-layered polyester resin molding comprises: a surface layer consisting of polyethylene terephthalate including metallic catalyst selected from the group of germanium group catalyst, titanium group catalyst and their mixture; and a rear surface layer consisting of the polyethylene terephthalate including the antimony-based catalyst. The content of the germanium group catalyst, the antimony-based catalyst and titanium class catalyst is respectively 1 - 300 ppm to the polyethylene terephthalate resin. The thickness of the surface layer is 0;1 - 3 mm and the thickness of the rear surface layer is 1 - 10 mm.
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