Lubricating compositions, concentrates, and greases...

Details Lubricating compositions, concentrates, and greases... Lubricating compositions, concentrates, and greases...

C - Chemistry, Metallurgy

10

M

C10M 135/08 (2006.01) C10M 135/04 (2006.01) C10M 135/22 (2006.01) C10M 141/00 (2006.01) C10M 163/00 (2006.01) F02B 75/02 (2006.01)

Patent

CA 2155063

This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity, (A) at least one organic polysulfide comprising at least about 90% dihydrocarbyl trisulfide, from about 0.1% up to about 8% dihydrocarbyl disulfide, and less than about 5% dihydrocarbyl higher polysulfides, and (B) at least one overbased metal composition, at least one phosphorus or boron compound, or mixtures of two or more thereof. The invention also relates to concentrates and greases containing the above combination. The invention also relates to methods of making the organic polysulfide.

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