Self-fusing tape

Details Self-fusing tape Self-fusing tape

C - Chemistry, Metallurgy

08

L

C08L 7/00 (2006.01) C08J 5/18 (2006.01) C08L 9/00 (2006.01) C08L 11/00 (2006.01) C08L 23/28 (2006.01)

Patent

CA 2320262

The present invention provides self-fusing, or self-amalgamating, compositions comprising rubber blends, preferably formed into tapes, which, after being elongated and, for example, wrapped around a substrate, fuse together to form a continuous layer. In preferred aspects of the invention, the composition comprises a partially pre- crosslinked polyisoprene, a halogenated polyisobuthylene, a second polyisobutylene, a non-extractable plasticiur and a mineral filler.

L'invention concerne des compositions à fusion ou à amalgamation automatique comprenant des mélanges de caoutchouc, ces compositions étant de préférence sous forme de bandes qui, après avoir été allongées et, par exemple, enroulées autour d'un substrat, se fondent pour former une couche continue. Dans des aspects préférés de l'invention, la composition comprend un polyisoprène partiellement pré-réticulé, un polyisobutylène halogéné, un deuxième polyisobutylène, un plastifiant non extractible et un agent de remplissage minéral.

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