Nitrogen-containing products of phosphosulfurized amides and lubricants containing same
AssigneeMobil Oil Corporation
InventorsAndrew G. Horodysky, Joan M. Kaminski
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Abstract
The invention herein is concerned with new compositions of matter made by (1) reacting phosphorus pentasulfide with an amide and (2) reacting this product with a nitrogen-containing compound, and lubricant compositions containing same. The compositions reduce friction to a greater extent than lubricants containing no additive and, when placed in lubricating oils and used in an internal combustion engine, fuel consumption is reduced.
Claims23
A reaction product made by (1) reacting, at from about 50.degree. C. to about 140.degree. C., a phosphorus polysulfide with a hydroxy aliphatic hydrocarbylamide of the formula:
- ##STR4## wherein R is a hydrocarbyl group containing 6 to 30 carbon atoms, R' and R" are aliphatic groups containing 1 to 6 carbon atoms and x and y are each 1 to 7, using from about 2 to about 12 moles of the hydrocarbylamide per mole of polysulfide, followed by (2) reacting (1), at from about 50.degree. C. to about 120.degree. C., with a stoichiometric amount of a nitrogen-containing compound.
Dependencies are inferred from the claim text.