Lubricating oils containing molybdenyl chelates
First Claim
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1. A lubricating oil composition having improved antifriction properties comprising a major portion of a hydrocarbon lubricating oil and in solution (a) between about 0.01 and about five weight percent of an active organic sulfur donor and (b) between about 0.05 and about six weight percent of a molybdenyl bis-β
- -diketonate having the general formula;
##STR6## where R and R'"'"' are independently selected from the group consisting of alkyl, aryl, aralkyl, alkaryl and cycloalkyl radicals containing from one to about twelve carbon atoms, and the sum of the carbon atoms in R and R'"'"' is three to about 24 carbon atoms.
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Abstract
The antifriction properties of a lubricating oil are enhanced by the addition of a minor amount of an oil-soluble molybdenyl bis-β-diketonate. The antifriction properties are particularly enhanced when the molybdenyl bis-β-diketonate is used in combination with an oil-soluble active sulfur donor, such as a zinc dialkyldithiophosphate.
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Citations
6 Claims
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1. A lubricating oil composition having improved antifriction properties comprising a major portion of a hydrocarbon lubricating oil and in solution (a) between about 0.01 and about five weight percent of an active organic sulfur donor and (b) between about 0.05 and about six weight percent of a molybdenyl bis-β
- -diketonate having the general formula;
##STR6## where R and R'"'"' are independently selected from the group consisting of alkyl, aryl, aralkyl, alkaryl and cycloalkyl radicals containing from one to about twelve carbon atoms, and the sum of the carbon atoms in R and R'"'"' is three to about 24 carbon atoms. - View Dependent Claims (2, 3, 4, 5, 6)
- -diketonate having the general formula;
Specification