Catalyst systems for the polymerization of C.sub.2 -C.sub.10 -alk-1-enes

US5496902A · kind A · utility

Assignee

• BASF SE

Inventors

• Kaspar Evertz · Schifferstadt, DE
• Ruerger Schlund · Mannheim, DE
• Guenther Schweier · Friedelsheim, DE
• Hans-Herbert Brintzinger · Frauenfeld, CH
• Werner Roell · Konstanz, DE
• Peter Jutzi · Bielefeld, DE
• Ingrid Mieling · Ochtrup, DE
• Winfried Mengele · Konstanz, DE

Key dates

• Filing date: Jun 13, 1994
• Grant date: Mar 5, 1996
• Expiry date: Jun 13, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F4/61927
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Catalyst systems for the polymerization of C.sub.2 -C.sub.10 -alk-1-enes contain, as active components, PA1 a) a metallocene complex of the general formula I ##STR1## where M is a metal of the subgroup III, IV or v of the Periodic Table of elements or a metal selected from the group consisting of the lanthanides, PA1 X is fluorine, chlorine, bromine, iodine, hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl or --OR.sup.7, PA1 R.sup.7 is C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl, alkylaryl, arylalkyl, fluoroalkyl or fluoroaryl, in each case having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, PA1 n is the valency of M minus two, PA1 R.sup.1 to R.sup.6 are each hydrogen, C.sub.1 -C.sub.10 -alkyl, 5-membered to 7-membered cycloalkyl which in turn may carry C.sub.1 -C.sub.10 -alkyl as a substituent, C.sub.6 -C.sub.15 -aryl or arylalkyl, where two adjacent radicals together may furthermore form a cyclic group of 4 to 15 carbon atoms, or Si(R.sup.8).sub.3, PA1 R.sup.8 is C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl or C.sub.3 -C.sub.10 -cycloalkyl, PA1 E.sup.1 and E.sup.2 are independent of one another and are each Si(R.sup…