Polymeric ligands, polymeric metallocenes, catalyst systems, preparation, and use

US6040402A · kind A · utility

Assignee

• Phillips Petroleum Company · US

Inventors

• Bernd Peifer · Bayreuth, DE
• Syriac J. Palackal · Bartlesville, US
• M. Bruce Welch · Bartlesville, US
• Helmut G. Alt · Bayreuth, DE
• Peter Schertl · Leverkusen, DE

Key dates

• Filing date: Mar 26, 1998
• Grant date: Mar 21, 2000
• Expiry date: Mar 26, 2018

Classification

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

Abstract

A polymerization process comprising contacting at least one olefin under polymerization conditions with a catalyst composition produced by combining an organoaluminoxane cocatalyst and a polymeric metallocene catalyst prepared by (1) forming a fluorine-containing polymer by (a) polymerizing a 2-vinyl fluorenyl compound or (b) polymerizing a fluorenyl compound by reacting it with chloro methyl methyl ether in the presence of zinc dichloride or aluminum trichloride; (2) reacting the fluorenyl-containing polymer with an alkali metal compound; and (3) reacting the product of step (2) with a transition metal-containing compound.