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:
May. 30, 1989
Filed:
Jun. 20, 1988
Applicant:
Inventors:
Bernard Damin, Oullins, FR;
Daniele Eber, Lyons, FR;
Pierre Hoornaert, St. Pierre de Chandieu, FR;
Claude Rey, Lyons, FR;
Assignee:
Elf France, Courbevoie, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 / ; 252 336 ; 252 35 ; 252 39 ; 2525 / ; 25240021 ;
Abstract
The present invention relates to additives for lubricating oils having an antirust and antiwear effect, their process of preparation and the lubricating compositions containing the said additives, these additives consisting in a microdispersion in the oil of the metallic salts of amino-acids, wherein the dicarboxylic amino-acids and their derivatives are advantageously used and wherein the salts are generally formed with metals from Groups I and II of the Periodic Classification of Elements.