| abstract |
(57) [Problem] To provide a molded article having a wide range of welding conditions and excellent welding strength. SOLUTION: P having a melting point in the range of 170 to 220 ° C. BT-based copolymer, P having a melting point in the range of 190 to 240 ° C. BN-based copolymer, P having a melting point in the range of 200 to 250 ° C. A molded article (A) comprising at least one polyester-based copolymer (a) selected from an ET-based copolymer and a PEN-based copolymer having a melting point in the range of 210 to 260 ° C, and another molded article (B) ) Is integrated by welding to produce a molded article. |