Method for producing metallocenes

US6319874A · kind A · utility

Assignee

• Basell Polyolefine GmbH · DE

Inventors

• Andreas Winter · Königstein, DE
• Carsten Bingel · Frankfurt am Main, DE
• Volker Fraaije · Frankfurt, DE
• Frank Kueber · Oberursel, DE

Key dates

• Filing date: Jan 11, 2000
• Grant date: Nov 20, 2001
• Expiry date: Jan 11, 2020

Classification

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

Abstract

A process for preparing rac/meso-metallocenes, the rac/meso-metallocenes themselves and the use of the rac/meso-metallocenes for preparing isotactic polyolefins are described.