Lubricating oil composition

C - Chemistry – Metallurgy – 10 – M

Patent

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C10M 111/04 (2006.01) C10M 101/02 (2006.01) C10M 169/04 (2006.01)

Patent

CA 1311463

ABSTRACT OF THE DISCLOSURE A lubricating oil composition which comprises a base oil of (A) 100 to 5 % by weight of a mineral oil having a kinematic viscosity at 40°C of 2 to 2000 cSt, a viscosity index of 70 or higher, a nitrogen content of 20 ppm or less and a bromine value of 25 or less, and (B) 0 to 95 % by weight of polybutene having a molecular weight of 200 to 1000; and at least one additive selected from an extreme pressure agent, an anti-wear agent and an oiliness agent is disclosed. when the lubricating oil composition is used, fatigue damage of a metal is decreased and it shows good oxidation resistance.

598030

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