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. 08, 1989
Filed:
Dec. 18, 1987
Applicant:
Inventor:
John Hen, Skillman, NJ (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585524 ;
Abstract
Low viscosity copolymers of ethylene and higher olefins are prepared with Ziegler-Natta catalysts in the presence of an aliphatic-aromatic solvent mixture, e.g., 1:1 (by volume) of hexane:toluene. The copolymerization can be conducted without hydrogen and subsequent cracking or dewaxing steps are not necessary to obtain oils with high VI and low pour point suitable for use as basestocks, blendstocks and as shear stable VI improvers.