| abstract |
(57) 【Abstract】 PROBLEM TO BE SOLVED: It is possible to perform fusion bonding at a lower temperature than in the past to perform strong joining, and to perform fusion bonding in a short time without causing thermal deterioration of the joined portion. , Excellent in piping workability, (EN) Provided are an electrofusion joint effective in reducing piping cost, and a pipe material suitable for joining with the electrofusion joint. The joint body has a joint body, and a joint portion integrally formed with the joint body on an inner surface or an outer surface of the joint body, and the joint portion contains a specific ethylene / α-olefin copolymer as a main component. An electrofusion joint made of a low melting point fusible resin. |