The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 11, 2012
Filed:
Mar. 28, 2008
Ronald D. Knudsen, Bartlesville, OK (US);
Bruce E. Kreischer, Humble, TX (US);
Ronald G. Abbott, Kingwood, TX (US);
Steven D. Bridges, Bartlesville, OK (US);
Brooke L. Small, Kingwood, TX (US);
Ronald D. Knudsen, Bartlesville, OK (US);
Bruce E. Kreischer, Humble, TX (US);
Ronald G. Abbott, Kingwood, TX (US);
Steven D. Bridges, Bartlesville, OK (US);
Brooke L. Small, Kingwood, TX (US);
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Abstract
A method of making a catalyst for use in oligomerizing an olefin, comprising a chromium-containing compound, a pyrrole-containing compound, a metal alkyl, a halide-containing compound, and optionally a solvent, the method comprising abating all or a portion of water, acidic protons, or both from a composition comprising the chromium-containing compound, a composition comprising the pyrrole-containing compound, a composition comprising a non-metal halide-containing compound, a composition comprising the solvent, or combinations thereof prior to contact thereof with a composition comprising a metal halide-containing compound.