| 摘要 |
PURPOSE:To provide a resin multi-layer structure generating no remarkable lowering of mechanical strength in a welding section. CONSTITUTION:A multi-layer structure is a molded body consisting of a resin section (A) containing a reinforcing filler of 5-70wt.% and another resin section (B) containing no reinforcing filler substantially, and its surface layer section except the neighborhood of a weld section is coated with the resin section (A), while the surfaces of a central section and the weld section of the molded body is coated with the resin section (B). |
