B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/140
B32B 27/08 (2006.01) B29C 61/06 (2006.01) B29C 61/10 (2006.01) B32B 27/32 (2006.01) C08J 5/12 (2006.01) C09J 7/02 (2006.01) F16L 47/22 (2006.01) F16L 55/17 (2006.01)
Patent
CA 1156920
FUSION-BONDABLE SHEET ABSTRACT OF THE DISCLOSURE A fusion-bondable sheet is provided which is used as an overtape for covering a joint portion of a heat-shrink- able cover sheet applied onto a joint of steel pipe or cable and which is also used as a cover sheet for repairing a damaged protecting cover of a steel pipe. The fusion- -bondable sheet comprises (a) a crosslinked polyolefin sheet, (b) a fusion-bondable layer 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 bonded to the other surface of the crosslinked polyolefin sheet through a binder or adhesive layer. Preferably, the flame- -retardant sheet is larger in size than the crosslinked polyolefin sheet and the edges of the former sheet outwardly extend from the edges of the latter sheet.
387101
Fujiwara Youtaro
Harakawa Hiroshi
Matsushita Masaaki
Tsutsui Seiko
Mcfadden Fincham
Ube Industries Ltd.
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