Corrosion inhibition

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 161/00 (2006.01) C10M 129/16 (2006.01) C10M 137/10 (2006.01) C10M 141/10 (2006.01) C10M 145/26 (2006.01)

Patent

CA 2584779

The present invention provides a lubricating composition containing (a) an oil of lubricating viscosity; (b) a corrosion inhibitor; and (c) an antiwear agent comprising at least one of (i) polyhydric alcohol with oxyalkylene groups, (ii) a fatty amine, or (iii) mixtures thereof, wherein the lubricating composition has a total sulphated ash content of less than 0.8 wt %. The invention further provides for the use of the lubricating composition in an internal combustion engine.

La présente invention concerne une composition lubrifiante contenant (a) une huile de viscosité lubrifiante, (b) un inhibiteur de la corrosion et (c) un agent anti-usure qui renferme au moins un élément parmi (i) un alcool polyhydrique avec des groupes d'oxyalkylène, (ii) un amine gras ou (iii) des mélanges correspondants, ladite composition lubrifiante possédant un contenu de cendres sulfatées total inférieur à 0,8 % en poids. Cette invention a aussi pour objet l'utilisation de la composition lubrifiante dans un moteur de combustion interne.

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