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. 20, 1977
Filed:
Oct. 31, 1975
Applicant:
Inventors:
John C Nnadi, Lagos, WN;
Phillip S Landis, Woodbury, NJ (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 / ; 252 33 ; 252 475 ; 2603 / ; 2603 / ; 2603 / ; 2603 / ; 2603 / ;
Abstract
Additives that are useful dispersants when placed in lubricants are prepared by (1) reacting an amine or a hydroxy amino compound, such as an amino alcohol, with a halomaleic anhydride and (2) reacting this product with an alkali or alkaline earth metal derivative of a substituted hydroxyaromatic compound.