Cyclopenta[I] phenanthrene-metal complex catalyst systems

US6284851A · kind A · utility

Assignee

• BASF SE

Inventors

• Josef Wunsch · Schifferstadt, DE
• Hans-Herbert Brintzinger · Frauenfeld, CH
• Nicole Schneider · Konstanz, DE
• Marc Prosenc · Konstanz, DE

Key dates

• Filing date: Dec 13, 1999
• Grant date: Sep 4, 2001
• Expiry date: Dec 13, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/943
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

In a process for preparing polymers based on monomers having a C.dbd.C double bond by homopolymerization or copolymerization of these monomers in the presence of a catalyst system comprising a metallocene complex A) and a compound B) capable of forming metallocenium ions and, if desired, an organometallic compound of main group I, II or III of the Periodic Table of the Elements C), the metallocene complex A) used is a compound of the formula (I) ##STR1## where the substituents and indices have the following meanings: PA0 R.sup.1 to R.sup.11 are hydrogen, C.sub.1 -C.sub.10 -alkyl, 5- to 7-membered cycloalkyl which may in turn bear C.sub.1 -C.sub.6 -alkyl groups as substituents, C.sub.6 -C.sub.15 -aryl or arylalkyl, where two adjacent radicals R.sup.1 to R.sup.8 may together form a cyclic group having from 4 to 15 carbon atoms, or Si(R.sup.12).sub.3, where R.sup.12 is C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl or C.sub.3 -C.sub.10 -cycloalkyl, PA0 M is a metal of transition groups III to VI of the Periodic Table of the Elements or a metal of the lanthanide series, PA0 X are identical or different and are hydrogen, halogen, C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl, C.s…