Polymerization of ethylenically unsaturated hydrocarbons

US4125698A · kind A · utility

Assignee

• Studiengesellschaft Kohle gGmbH · DE

Inventors

• Karl Ziegler · Mülheim an der Ruhr, DE
• Heinz Breil · Mülheim an der Ruhr, DE
• Heinz Martin · Munich, DE
• Erhard Holzkamp · Mülheim an der Ruhr, DE

Key dates

• Filing date: Oct 29, 1958
• Grant date: Nov 14, 1978
• Expiry date: Oct 29, 1978

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/906
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Method for the polymerization of alpha-olefins, e.g., ethylene and its higher homologs, to produce high molecular weight polymers by contacting the alpha-olefin or an alpha-olefin mixture to be polymerized with a catalyst formed from a mixture of a first and second component, the first component essentially consisting of a dialkyl, diaryl organoaluminum compound, or aluminum hydride, and preferably a dialkyl aluminum halide, e.g., diethyl aluminum chloride, and the second component essentially consisting of a salt, freshly precipitated oxide or hydroxide of a Group IVB, VB, VIB or VIII of the Periodic System, and most preferably a salt, such as titanium chloride.