Stereorigid metallocene compound

US6063949A · kind A · utility

Assignee

• Targor GmbH · DE

Inventors

• Michael Aulbach · Hofheim, DE
• Frank Kuber · Oberursel, DE
• Michael Riedel · Essen, DE
• Freddy Helmer-Metzmann · Essenheim, DE

Key dates

• Filing date: Jun 19, 1996
• Grant date: May 16, 2000
• Expiry date: Jun 19, 2016

Classification

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

Abstract

The present invention relates to a stereorigid metallocene compound having as ligands at least two substituted or unsubstituted cyclopentadienyl groups which are connected to one another via a five-membered ring, where at least one cyclopentadienyl group is fused onto the five-membered ring and the ligand system of the stereorigid metallocene compound is different from 4-[.eta..sup.5 -3'-alkylcyclopentadienyl)-4,6,6-trimethyl-(.eta..sup.5 -2-alkyl-4,5-tetrahydropentalene]. The metallocene compound of the invention is suitable as a catalyst component for olefin polymerization.