Heat recoverable self-heating sealing article and method of...

Details Heat recoverable self-heating sealing article and method of... Heat recoverable self-heating sealing article and method of...

B - Operations, Transporting

29

C

189/13, 18/978

B29C 61/10 (2006.01) B29C 61/06 (2006.01) F16L 47/22 (2006.01) F16L 57/00 (2006.01) H02G 15/10 (2006.01) H02G 15/18 (2006.01)

Patent

CA 1085127

ABSTRACT A heat-recoverable article to be positioned around a pipe or cable point or splice which it is desired to encapsulate or seal provides a means for sealing a splice involving a plurality of cables of the same or varying sizes. The article includes a closure means for holding the article together after it has been positioned around the splice to be sealed. In one embodi- ment, the inner surface of the article contains a heat activated adhesive or sealant to encapsulate the splice and the outer layer of the article is a heat recoverable insulating material. The article may have self-contained heating means comprising a polymeric material having dispersed therein a conductive filler, and exhibiting a positive temperature coefficient of resistance so as to render it self-regulating, the article need only be con- nected to a suitable electric power supply to cause it to recover.

335450

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