N,N-diorganodithiocarbamate-alkylthiosulfinyl halide reaction products and lubricant compositions containing same
AssigneeMobil Oil Corporation
InventorAbraham O. M. Okorodudu
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Abstract
Disclosed are products derived from the reaction of amine or metal salts of N,N-diorganodithiocarbamic acids with alkylthiosulfinyl halides. These compositions are useful as antioxidants and antiwear additives in lubricating oil compositions.
Claims16
A lubricating composition comprising a major amount of a lubricating oil and between about 0.01 and about 10 percent by weight of the reaction product obtained by reacting an amine or metal dithiocarbamate salt having the following structural formula:
- ##STR6## where R.sup.1 and R.sup.2 are the same or different, each being a hydrocarbyl group containing from 1 to 36 carbon atoms and Y is an ammonium or metal radical with an alkyl thiosulfinyl halide having the structural formula:
- ##STR7## where R.sup.3 is an aryl, alkaryl, aralkyl, or a saturated or unsaturated alkyl group and X is halogen.
A lubricating composition comprising a major amount of a lubricating oil and between about 0.01 and about 10 percent by weight of the reaction product obtained by reacting an amine or metal salt of N,N-dibutyldithiocarbamic acid with an alkyl thiosulfinyl halide having the structural formula:
- ##STR8## where R.sup.3 is an aryl, alkaryl, aralkyl, or a saturated or unsaturated alkyl group.
A method of making a lubricating composition comprising adding to a lubricating oil between about 0.01 and about 10 percent by weight of the reaction product obtained by reacting an amine or metal dithiocarbamate salt having the following structural formula:
- ##STR9## where R.sup.1 and R.sup.2 are the same or different, each being a hydrocarbyl group containing from 1 to 36 carbon atoms and Y is an ammonium or metal radical with an alkyl thiosulfinyl halide having the structural formula:
- ##STR10## where R.sup.3 is an aryl, alkaryl, aralkyl, or a saturated or unsaturated alkyl group and X is halogen.
Dependencies are inferred from the claim text.