PROCESS FOR PRODUCING ETHYLENIC COPOLYMER.

摘要

A process for copolymerizing ethylene with an a-olefin and optionally further a conjugated diene in the presence of both a polysiloxane compound and a catalyst comprising an organo-aluminum compound and at least one transition metal compound selected from among vanadium, zirconium and hafnium compounds supported on a carrier. This process serves to prevent the occurrence of fouling observed in the industrial production of ethylenic copolymers and makes continuous operation possible.