Fusion-bondable sheet.

摘要

A fusion-bondable sheet (1) comprises (a) a crosslinked polyolefin sheet (4), (b) a fusion-bondable layer (5) formed on one surface of the crosslinked polyolefin sheet, which layer is mainly composed of a polyolefin having a melting point of 80 - 200°C, a polyolefin having a melting point of 30 - 75°C and a tackifier, and (c) a flame-retardant sheet (2) bonded to the other surface of the crosslinked polyolefin sheet (4) through a binder or adhesive layer (3). Preferably, the flame-retardant sheet (2) is larger in size than the crosslinked polyolefin sheet (4) and the edges of the former sheet (2) outwardly extend from the edges of the latter sheet (4). The fusion-bondable sheet (1) may be used as an overtape for covering a joint portion of a heat-shrinkable cover sheet applied onto a joint of steel pipe or cable and may be also used as a cover sheet for repairing a damaged protecting cover of a steel pipe.