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:
Aug. 29, 2017
Filed:
Apr. 07, 2016
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Brooke L. Small, Kingwood, TX (US);
Kenneth D. Hope, Kingwood, TX (US);
Qing Yang, Bartlesville, OK (US);
Albert P. Masino, Tulsa, OK (US);
Max P. McDaniel, Bartlesville, OK (US);
Richard M. Buck, Bartlesville, OK (US);
William B. Beaulieu, Tulsa, OK (US);
Eduardo J. Baralt, Kingwood, TX (US);
Eric J. Netemeyer, Kingwood, TX (US);
Bruce Kreischer, Kingwood, TX (US);
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Abstract
Methods for making alpha olefin oligomers and polyalphaolefins include a step of contacting a Cto Calpha olefin monomer and a catalyst system containing a metallocene, a first activator comprising a solid oxide chemically-treated with an electron withdrawing anion, and a second activator comprising an organoaluminum compound. The alpha olefin oligomers and polyalphaolefins prepared with these catalyst systems can have a high viscosity index combined with a low pour point, making them particularly useful in lubricant compositions and as viscosity modifiers.