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. 21, 1990
Filed:
Jun. 27, 1988
Applicant:
Inventors:
Thomas J Dileo, Baton Rouge, LA (US);
Marshall B Nelson, Baton Rouge, LA (US);
Matthew J Lynch, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585310 ; 585329 ; 585525 ; 585520 ; 585521 ; 585717 ; 585719 ; 585326 ;
Abstract
Unsaturated .alpha.-olefin oligomers are topped to remove monomer and dimer and then distilled to remove a trimer fraction leaving a residue of tetramer, pentamer and higher oligomers. The trimer fraction is hydrogenated to form saturated .alpha.-olefin oligomer suitable for use as a lubricant.