JOINED BODY AND METHOD FOR MANUFACTURING SAME

Provided is a method for manufacturing a joined body and a thermoplastic elastomer in which molding processability is favorable, and a favorable external appearance and joining strength can be obtained in the joined sections. In the method for manufacturing the joined body according to the present invention, a thermoplastic elastomer is melted in a mold in which a molded body (I) is placed, the elastomer is then ejected, and a molded body (II) derived from the thermoplastic elastomer is integrated with the molded body (I), wherein said method for manufacturing a joined body is characterized inthat the molded body (I) contains a filler, and the arithmetic average particle diameter of the filler is 1-5 [mu]m. 本发明提供成型加工性良好且可兼得接合部的良好的外观和接合强度的热塑性弹性体及接合体的制造方法。本发明涉及的接合体的制造方法，其特征在于，是在载置有成型体(I)的模具内使热塑性弹性体熔融后进行注射，使来自上述热塑性弹性体的成型体(II)与上述成型体(I)体化的接合体的制造方法，上述成型体(I)含有填料，上述填料的算术平均粒径为1～5μm。