Process for the preparation of a 1-olefin polymer

US5202398A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Martin Antberg · Frankfurt am Main, DE
• Hartmut Luker · Hofheim, DE
• Ludwig Bohm · Mainz, DE

Key dates

• Filing date: Dec 13, 1989
• Grant date: Apr 13, 1993
• Expiry date: Dec 13, 2009

Classification

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

Abstract

If the transition metal component used in an olefin polymerization catalyst is the product of the reaction between a siloxane-substituted metallocene of titanium, zirconium or hafnium and a hydroxyl group-containing support material, for example silicon dioxide, these metallocene catalysts can be employed in existing polymerization plants which are designed for the suspension process.