Multifunctional molybdenum and sulfur containing lube additives

Details Multifunctional molybdenum and sulfur containing lube additives Multifunctional molybdenum and sulfur containing lube additives

1990-03-12

1990-10-30

Chaudhuri, Olik

Compositions

Electrolytes for electrical devices

25240054, C10M13900

Patent

active

049667190

ABSTRACT:
In accordance with this invention, there is provided a lubricating composition comprising a major amount of an oil of lubricating viscosity and a minor amount of an additive having the formula MoL.sub.4 wherein L is a ligand selected from thioxanthates and mixtures thereof and, in particular, thioxanthates having a sufficient number of carbon atoms to render the additive soluble in the oil. In general, the thioxanthate ligand, L, will have from about 2 to about 30 carbon atoms.

REFERENCES:
patent: 2335017 (1943-11-01), McNab et al.
patent: 2500195 (1950-03-01), McDermott
patent: 2951040 (1960-08-01), Hugel et al.
patent: 3356702 (1967-12-01), Farmer et al.
patent: 4013571 (1977-03-01), Williams et al.
patent: 4259254 (1981-03-01), Bridger
Hyde, J. et al., "Preparation and Characterization of Tetrakis (Thioxanthato) Molybdenum (IV) Complexes", J. Inorg. Nucl. Chem. 1977, vol. 39, pp. 289-296.
Vella, P. et al., "Preparation, Characterization and Electrochemical Investigation of Dimeric Molybdenum Thioxanthate Complexes", J. Inorg. Nucl. Chem. 1978, vol. 40, pp. 477-487.

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