The invention relates to a method for the homo- or copolymerization of ethylene with the aid of the catalytic action of a (pi)-cyclopentadienyl transition-metal compound and an aluminoxane compound. The invention discloses a means of increasing the activity of the said catalyst combination and for enhancing the copolymerization carried out using the catalyst system so that the comonomer concentration in the obtained copolymer will be higher. These objects are achieved by using a compound according to the formula CH2=CHR which takes part in the polymerization and in which R stands for a hydrocarbon group having at minimum 8 carbon atoms.
|IPC||C08F 110/ 02 A N|
|Publication status||Published - 14 Apr 1994|
|MoE publication type||H1 Granted patent|