Lubricating compositions comprising molybdenum dithiocarbamates

C - Chemistry – Metallurgy – 10 – M

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Details

C10M 135/18 (2006.01) C10M 141/08 (2006.01) C10M 141/10 (2006.01) C10M 167/00 (2006.01)

Patent

CA 2292988

There is provided a lubricating composition including a lubricating base containing an asymmetric sulfurized oxymolybdenum dithiocarbamate of the formula (1); a symmetric sulfurized oxymolybdenum dithiocarbamate of the formula (2); and a phenolic or aminic antioxidant. (see formulas 1 and 2) (wherein R1 to R5 are each a hydrocarbon group, provided that R1 to R4 are not concurrently the same group; and X1 to X8 are each a sulfur atom or an oxygen atom.) This lubricating composition meets both the required solubility of additives in base oils and long drain properties concurrently.

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