Lubricating grease, it's preparation and use, in particular...

Details Lubricating grease, it's preparation and use, in particular... Lubricating grease, it's preparation and use, in particular...

C - Chemistry, Metallurgy

10

M

C10M 169/02 (2006.01) B60C 17/04 (2006.01) B60C 17/06 (2006.01)

Patent

CA 2446065

The invention concerns a lubricating grease, characterised in that it comprises 70 to 95 wt. % of a mixture containing at least a first fatty acid ester and sorbitan and at least a second fatty acid ester and polyalkoxylated sorbitan, said esters being present in weight amounts, relative to the weight of said mixture, of 10 to 90 % and 90 to 10 % respectively, and 5 to 30 wt. % of at least a thickening agent. The invention also concerns a method for preparing a grease in accordance with the invention, and the use of such a grease as lubricant. The invention further concerns a vehicle wheel comprising the inventive grease.

L'invention a pour objet une graisse lubrifiante, caractérisée en ce qu'elle comprend: de 70 à 95% en poids d'un mélange comprenant au moins un premier ester d'acide gras et de sorbitan et au moins un deuxième ester d'acide gras et de sorbitan polyoxyalkylé, ces esters étant présents en des quantités en poids, par rapport au poids dudit mélange, de 10 à 90 % et 90 à 10%, respectivement; et de 5 à 30% en poids d'au moins un agent épaississant. L'invention a aussi pour objet un procédé de préparation d'une graisse selon l'invention, ainsi que l'utilisation en tant que lubrifiant d'une telle graisse. L'invention a aussi pour objet une roue de véhicule comprenant une graisse selon l'invention.

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