Amidinato catalyst systems for the polymerization of olefins

US6262198A · kind A · utility

Assignee

• BASF SE

Inventors

• Ruger Schlund · Ludwigshafen, DE
• Martin Lux · Schifferstadt, DE
• Frank Edelmann · Magdeburg, DE
• Ulrike Reissmann · Northeim, DE
• Wolfgang Rohde · Speyer, DE

Key dates

• Filing date: Jun 6, 1997
• Grant date: Jul 17, 2001
• Expiry date: Jun 6, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F110/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Catalyst systems which are suitable for the polymerization of olefinically unsaturated hydrocarbons contain, as active components, PA1 A) an amidinato metal complex of the general formula A ##STR1## PA1 where PA2 M is a metal from group IIIb, IVb, Vb or VIb of the Periodic Table of Elements or a metal from the lanthanide group, PA2 X is a negative leaving atom or a negative leaving group, and the radicals X may be identical or different if (n-m)>1, PA2 R.sup.1, R.sup.2 and R.sup.3 are each a C-organic or Si-organic radical, PA2 n is the valency of M in the metal complex A and PA2 m is from 1 to 5, with the proviso that PA2 n-m.gtoreq.0, and, if required, PA1 B) an acceptor compound for the substituent X of the component A as an activator.