Apparatus and process for the production of low molecular...

Details Apparatus and process for the production of low molecular... Apparatus and process for the production of low molecular...

C - Chemistry, Metallurgy

08

F

C08F 255/00 (2006.01) B29B 7/72 (2006.01) C08F 8/46 (2006.01)

Patent

CA 2177619

Disclosed is a process for the production of low molecular weight grafted polyolefins in which a molten polyolefin is grafted by reactive processing in a screw extruder at an elevated pressure. The molten polyolefin has a low viscosity and flows easily around the screw, thus the pressure is maintained in the screw extruder apparatus by the use of a pressure control device at the exit end of the extruder.

Procédé de production de polyoléfines greffées de faible poids moléculaire, dans lequel une polyoléfine fondue est greffée par traitement réactif dans une extrudeuse à vis sous forte pression. La polyoléfine fondue présente une faible viscosité et s'écoule aisément autour de la vis, la pression étant maintenue dans l'extrudeuse à vis à l'aide d'un régulateur de pression à la sortie de l'extrudeuse.

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