Gear oil compositions, methods of making and using thereof

Details Gear oil compositions, methods of making and using thereof Gear oil compositions, methods of making and using thereof

C - Chemistry, Metallurgy

10

M

C10M 171/00 (2006.01) C10M 105/04 (2006.01) C10M 169/04 (2006.01)

Patent

CA 2724126

A gear oil composition is provided. The composition comprises a synergistic amount of an isomerized base oil having consecutive numbers of carbon atoms and less than 10 wt% naphthenic carbon by n-d-M for the gear oil composition to have a traction coefficient at 15 mm2/s. of less than 0.030 and a pressure viscosity coefficient of at least 15.0 at 80 °C. In one embodiment, the sufficient amount of isomerized base oil ranges from 20 to 80 wt. % based on the total weight of the gear oil composition.

L'invention porte sur une composition d'huile pour engrenages. La composition comprend une quantité synergique d'une huile de base isomérisée ayant des nombres consécutifs d'atomes de carbone et moins de 10 % en poids de carbone naphténique par la méthode n-d-M pour que la composition d'huile pour engrenages présente un coefficient de traction à 15 mm2/s inférieur à 0,030 et un coefficient de viscosité sous pression d'au moins 15,0 à 80°C. Dans un mode de réalisation, la quantité suffisante d'huile de base isomérisée est comprise entre 20 et 80 % en poids par rapport au poids total de la composition d'huile pour engrenages.

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