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. 11, 1984
Filed:
Jun. 22, 1983
Applicant:
Inventors:
Jean-Louis Le Coent, Le Havre, FR;
Bernard Demoures, Puteaux, FR;
Assignee:
Orogil, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 334 ; 252 18 ; 252 407 ; 252 427 ;
Abstract
High alkalinity metallic lubricating oil additives and a method of making them are disclosed. A magnesium alkylbenzenesulfonate and a sulfurized calcium alkylphenate are carbonated in the presence of an oil, magnesium oxide, a glycol, and an amine. The glycol, water, and sediment are then removed from the resulting medium.