Highly branched sulfonates for drive-line applications

Details Highly branched sulfonates for drive-line applications Highly branched sulfonates for drive-line applications

C - Chemistry, Metallurgy

10

M

C10M 135/10 (2006.01) C10M 159/24 (2006.01) C10M 177/00 (2006.01)

Patent

CA 2682709

A lubricant composition comprising an oil of lubricating viscosity and an oil-soluble branched-chain hydrocarbyl-substituted arenesulfonic acid salt, wherein the arenesulfonic moiety has at least one hydrocarbyl substituent which is a highly branched group as defined by having a Chi(0)/Shadow XY ratio greater than about 0.180, exhibits good dynamic frictional performance.

L'invention concerne une composition de lubrifiant comprenant une huile de viscosité lubrifiante et un sel d'acide arènesulfonique substitué par hydrocarbyle, à chaîne ramifiée, soluble dans l'huile, la fraction arènesulfonique ayant au moins un substituant hydrocarbyle qui est un groupe hautement ramifié défini comme ayant un rapport Chi (0)/Ombre XY supérieur à environ 0,180. Cette composition présente une bonne performance de frottement dynamique.

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