Metallocene complexes with cationic bridges

US5883277A · kind A · utility

Assignee

• BASF SE

Inventors

• David Fischer · Breunigweiler, DE
• Franz Langhauser · Bad Dürkheim, DE
• Gunther Schweier · Osthofen, DE
• Hans-Herbert Brintzinger · Frauenfeld, CH
• Nadine Leyser · Konstanz, DE

Key dates

• Filing date: Aug 14, 1997
• Grant date: Mar 16, 1999
• Expiry date: Aug 14, 2017

Classification

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

Abstract

Metallocene complexes having a cationic bridge of the formula ##STR1## where the substituents have the following meanings: M is a metal of transition group III, IV, V or VI of the Periodic Table of the Elements or a metal of the lanthanide group, 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.5, PA1 R.sup.1 to R.sup.12, Y, Z and n having the meanings set out in the specification, said complexes can be prepared via ligand systems of the formula II ##STR2## as intermediates.