Grafted polyethylene

Details Grafted polyethylene Grafted polyethylene

C - Chemistry, Metallurgy

08

F

C08F 255/02 (2006.01) C08F 8/00 (2006.01) C08F 255/00 (2006.01) C08L 51/06 (2006.01)

Patent

CA 2729885

A process for grafting hydrolysable silane groups to polyethylene includes reacting polyethylene with an unsaturated silane having at least one hydrolysable group bonded to Si, in the presence of a compound capable of generating free radical sites in the polyethylene. The grafted polyethylene prepared by the process can be shaped into a pipe and crosslinked by water flowing through the pipe.

Linvention concerne un procédé de greffage de groupes silanes hydrolysables sur du polyéthylène, qui comprend la mise en réaction de polyéthylène avec un silane insaturé contenant au moins un groupe hydrolysable relié à Si, en présence dun composé capable de générer des sites de radicaux libres dans le polyéthylène. Le polyéthylène greffé préparé par le procédé peut être mis sous la forme dun tuyau et réticulé par leau qui sécoule dans le tuyau.

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