| abstract |
[57] [Abstract] [Problem] To be excellent in durability, chemical resistance, etc., to be able to securely and firmly join, to prevent leakage at joints, to reduce joint and pipe scraps generated during construction, repair, etc. Provided is an electrofusion joint made of a thermoplastic resin, which can crush a collected joint or pipe, remove a heating element, and reuse the crushed joint or pipe. SOLUTION: The first invention is a short tubular thermoplastic resin (A). In a place where a pipe made of a thermoplastic resin (C) joined by a joint made of a thermoplastic resin, a heating element is embedded in an embedded layer made of a thermoplastic resin (B). Wherein the thermoplastic resin (B) and the thermoplastic resin (C) are composed of a thermoreversible crosslinkable resin composition, and the second invention is a thermoplastic resin (C) joined by a joint. It is characterized in that a two-layer tube is used as a tube made of a material. [Effect] The above problem is solved. |