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:
Apr. 06, 2021
Filed:
Mar. 15, 2018
Applicant:
Exxonmobil Chemical Patents Inc., Baytown, TX (US);
Inventors:
Donna J. Crowther, Blairsville, GA (US);
Patrick C. Chen, Houston, TX (US);
Jacqueline A. Lovell, Crosby, TX (US);
Md Safatul Islam, Pearland, TX (US);
Assignee:
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 107/02 (2006.01); C07C 2/22 (2006.01); C08F 4/6592 (2006.01); C08F 210/16 (2006.01); C08F 10/14 (2006.01); B01J 31/38 (2006.01); C08F 10/08 (2006.01); C08F 110/14 (2006.01); B01J 31/22 (2006.01); C08F 4/659 (2006.01);
U.S. Cl.
CPC ...
C08F 4/65927 (2013.01); B01J 31/38 (2013.01); C07C 2/22 (2013.01); C08F 10/08 (2013.01); C08F 10/14 (2013.01); C08F 110/14 (2013.01); C08F 210/16 (2013.01); C10M 107/02 (2013.01); B01J 31/2295 (2013.01); B01J 2231/12 (2013.01); B01J 2531/46 (2013.01); B01J 2531/48 (2013.01); B01J 2531/49 (2013.01); C08F 4/659 (2013.01); C08F 4/65908 (2013.01); C08F 4/65912 (2013.01); C08F 2500/15 (2013.01); C08F 2500/16 (2013.01);
Abstract
Unsaturated and hydrogenated polyalpha-olefin products can be made with a high selectivity toward vinylidenes and tri-substituted vinylenes combined, a high selectivity toward vinylidenes, and a low selectivity toward 1,2-di-substituted vinylenes by using a catalyst system comprising a metallocene compound having the following structure in the polymerization reaction: