Amidinato catalyst systems for the polymerization of olefins

US5707913A · 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, 1995
• Grant date: Jan 13, 1998
• Expiry date: Jun 6, 2015

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 formula A ##STR1## where M is a metal from group IIIb, IVb, Vb or VIb of the Periodic Table of Elements or a metal from the lanthanide group, PA1 X is a negative leaving atom or a negative leaving group, and the radicals X may be identical or different if (n-m)>1, PA1 R.sup.1, R.sup.2 and R.sup.3 are each a C-organic or Si-organic radical, PA1 n is the valency of M in the metal complex A and PA1 m is from 1 to 5, with the proviso that n-m.gtoreq.0, and, PA1 B) an activator in a molar ratio of activator B to metal complex A of from 0.5:1 to 10,000:1.