Organoaluminoxy product, catalyst systems, preparation, and use

US5670589A · kind A · utility

Assignee

• Phillips Petroleum Company · US

Inventors

• Rolf L. Geerts · Bartlesville, US
• M. Bruce Welch · Bartlesville, US
• Syriac J. Palackal · Bartlesville, US
• Helmut G. Alt · Bayreuth, DE
• Bernd Peifer · Bayreuth, DE
• Harold R. Deck · Bartlesville, US

Key dates

• Filing date: Feb 8, 1995
• Grant date: Sep 23, 1997
• Expiry date: Feb 8, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F4/61922
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

In accordance with the present invention, there is provided an organoaluminoxy product prepared by the process comprising reacting an organoaluminoxane with an ene-ol compound. In another embodiment, the organoaluminoxane can be prepared in situ by the process comprising reacting a hydrocarbylaluminum compound, water, and the ene-ol compound. Further there is provided olefin polymerization catalyst systems comprising the organoaluminoxy product and at least one transition metal-containing catalyst. Optionally, the catalyst system is prepolymerized in the presence of at least one olefin to form a prepolymerized catalyst system. Still further there is provided processes for the polymerization of olefins using the catalyst systems.