| 摘要 |
PURPOSE: To obtain a container made of a dissimilar material having a high airtightness by integrating a container body or a lid made of a rigid resin and a seal part made of a thermoplastic elastomer at the time of second shot injection molding so as to prevent a seal material from peeling from the container body or the lid and eliminate a joint of the seal material. CONSTITUTION: At second shot, a common mold 5 and a second shot mold 10 having a space for molding a seal part 3 are closed. A polyester thermoplastic elastomer is molded by injecting from a second shot molding machine 11 so as to mold the seal part 3 of a container body or a lid 2 which is molded by injection molding with an ABS resin at first shot. The ABS resin used for molding the lid 2 and the thermoplastic elastomer used for molding the seal part 3 fuse each other at adhering faces, so that the upper lid 2 and the seal part 3 are integrated at the adhering faces at the time of molding of the seal part 3 in the second shot. |
