A highly esterified oligosaccharide polyester lubricant for...

C - Chemistry – Metallurgy – 10 – M

Patent

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C10M 105/40 (2006.01) C10M 169/04 (2006.01)

Patent

CA 2709964

A method is provided for reducing friction between at least two metal surfaces which are in a frictional relationship with each other or otherwise in need of lubrication. The method includes contacting the metal surfaces with an effective amount of a lubricant composition comprised of partially-esterified sucrose molecules having, in one embodiment, an average distribution of from 5 to 7 fatty acids bound to a sucrose backbone. The lubricant may also include from about 20 ppm to about 10,000 ppm of an antioxidant, about half of which may be an active tocopherol.

L'invention porte sur un procédé pour réduire le frottement entre au moins deux surfaces métalliques qui sont en relation de frottement l'une avec l'autre ou sinon qui nécessitent une lubrification. Le procédé comprend la mise en contact des surfaces métalliques avec une quantité efficace d'une composition de lubrifiant se composant de molécules de saccharose partiellement estérifiées ayant, dans un mode de réalisation, une distribution moyenne de 5 à 7 acides gras liés à un squelette de saccharose. Le lubrifiant peut également comprendre entre environ 20 ppm et environ 10 000 ppm d'un antioxydant, dont environ la moitié peut être un tocophérol actif.

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