Method for the selective production of racemic metallocene complexes

US6992204B2 · kind B2 · utility

Assignee

• Basell Polyolefine GmbH · DE

Inventors

• Robert Damrau · Konstanz, DE
• Patrik Müller · Gothenburg, SE
• Eva Royo · Konstanz, DE
• Hans-Herbert Brintzinger · Frauenfeld, CH

Key dates

• Filing date: Jun 28, 2001
• Grant date: Jan 31, 2006
• Expiry date: Aug 17, 2021

Classification

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

Abstract

The invention relates to a method for producing racemic metallocene complexes by reacting bridged or non-bridged transition metal complexes with cyclopentadienyl derivatives of alkaline or alkaline earth metals and optionally, subsequently substituting the phenolate ligands.