METHOD FOR IMPROVING THE HOMO- AND COPOLYMERIZATION OF ETHYLENE

Jukka Seppälä (Inventor), Jari Koivumäki (Inventor)

Research output: Patent

Abstract

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.

Original languageEnglish
Patent numberWO9407924
IPCC08F 110/ 02 A N
Priority date07/10/1992
Publication statusPublished - 14 Apr 1994
MoE publication typeH1 Granted patent

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