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:
Sep. 23, 1986
Filed:
Dec. 31, 1984
Applicant:
Inventor:
Robert F Bridger, Hopewell, NJ (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
585 10 ;
Abstract
Lubricating oil compositions having improved viscosity properties, such as viscosity index, are produced by combining with a lubricant a viscosity index-improving amount of an atactic polymer of C.sub.5 -C.sub.22 alpha-olefins prepared by polymerizing at least one C.sub.5 -C.sub.22 alpha-olefin monomer in the presence of a highly active olefin-polymerization catalyst. Also disclosed is a process for the preparation of the atactic polymers, which can be homopolymers of copolymers of C.sub.5 -C.sub.22 alpha olefins.