Stock material or miscellaneous articles – Sheet facing and longitudinally noncoextensive with web or... – Sheet smaller in both length and width
Patent
1981-10-02
1982-10-26
Lesmes, George F.
Stock material or miscellaneous articles
Sheet facing and longitudinally noncoextensive with web or...
Sheet smaller in both length and width
428461, 428516, 428339, 428346, 428463, 428517, 156 86, B32B 314
Patent
active
043562221
ABSTRACT:
A fusion-bondable sheet is provided which is 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 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.degree.-200.degree. C., a polyolefin having a melting point of 30.degree.-75.degree. 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.
REFERENCES:
patent: 2697058 (1954-12-01), Lasak
patent: 3770556 (1973-11-01), Evans et al.
Fujiwara Youtaro
Harakawa Hiroshi
Matsushita Masaaki
Tsutsui Seiko
Johnson B. K.
Lesmes George F.
Ube Industries Ltd.
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