Monocyclopentadienyl complexes

US7776980B2 · kind B2 · utility

Assignee

• Basell Polyolefine GmbH · DE

Inventors

• Shahram Mihan · Bad Soden, DE
• Benno Bildstein · Innsbruck, AT
• Georg E. Steiner · Salzburg, AT

Key dates

• Filing date: Mar 18, 2006
• Grant date: Aug 17, 2010
• Expiry date: Mar 23, 2027

Classification

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

Abstract

Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one bridged keto, thioketo, imino or phosphino group, a catalyst system comprising at least one of the monocyclopentadienyl complexes and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst system.