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:
Jan. 15, 1991
Filed:
Oct. 24, 1989
Applicant:
Inventors:
Henry Ashjian, E. Brunswick, NJ (US);
Henry A Gawel, Clark, NJ (US);
Assignee:
Mobil Oil Corporation, Fairfax, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 496 ; 252 / ; 548405 ; 548545 ; 558291 ; 558294 ; 585 10 ; 585310 ;
Abstract
A borated reaction product that is useful as a dispersancy enhancing lubricant additive. The product is produced from the maleic anhydride adduct of an olefinic alpha-olefin oligomer. The oligomer (HVI-PAO) comprises the product of the oligomerization of C.sub.2 to C.sub.24 alpha-olefin using a reduced valence state Group VIB metal as the oligomerization catalyst. This adduct of maleic anhydride and HVI-PAO is reacted with a secondary amine such as diphenylamine, an alkanol amine such as triethanolamine, and a borating agent such as boric acid or a borate ester.