Supported metallocene complexes having heterofunctional groups in the cyclopentadienyl system as catalyst systems

US5627246A · kind A · utility

Assignee

• BASF SE

Inventors

• Franz Langhauser · Bad Dürkheim, DE
• David Fischer · Breunigweiler, DE
• J urgen Kerth · Eisenberg (Pfalz), DE
• G unther Schweier · Friedelsheim, DE
• Elke Barsties · Konstanz, DE
• Hans-Herbert Brintzinger · Frauenfeld, CH
• Stefan Schaible · Konstanz, DE
• Werner Roell · Konstanz, DE

Key dates

• Filing date: Mar 1, 1995
• Grant date: May 6, 1997
• Expiry date: Mar 1, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F4/63927
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A supported catalyst system that is obtained by PA1 a) reacting a finely divided carrier with an a-trisalkoxy-silyl-.omega.-haloalkyl compound, PA1 b) adding a metallocene complex of the indicated formula I to the reaction product of a); PA1 c) reacting the product of b) with a quaternizing agent; and PA1 d) optionally adding an open-chain or cyclic alumoxane compound. The catalyst system can be used to prepare polymers of C.sub.2 -C.sub.10 -alk-1-enes.