1-Olefin polymer wax, and a process for the preparation thereof

US4962262A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Andreas Winter · Königstein, DE
• Martin Antberg · Frankfurt am Main, DE
• Jurgen Rohrmann · Kelkheim, DE

Key dates

• Filing date: Dec 19, 1988
• Grant date: Oct 9, 1990
• Expiry date: Dec 19, 2008

Classification

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

Abstract

1-Olefin polymer waxes having a very narrow molecular weight distribution, high isotacticity, a narrow grain size distribution and a high bulk density are obtained by means of a catalyst comprising a chiral, stereorigid metallocene compound and an aluminoxane, in the presence of small amounts of hydrogen during the polymerization.