Metal salts of sulfurized olefin adducts of phosphorodithioic acids and organic compositions containing same
AssigneeMobil Oil Corporation
InventorAndrew G. Horodysky
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Abstract
A novel product formed by forming the metal salt of the product of reaction between a dialkyl or diaryl phosphorodithioic acid and a sulfurized olefin possesses among other things, good antiwear and antioxidant activity. Organic compositions containing a minor amount thereof also possess good lubricating characteristics.
Claims24
An organothiophosphorus compound comprising a metal salt of the reaction product of (1) a phosphorodithioic acid having the general formula:
- ##STR3## wherein R and R' are hydrocarbyl and are the same or different with each having up to about 30 carbon atoms and (2) a sulfurized olefin having from about 2 to about 8 carbon atoms and sufficient reactive olefinic sites to react with said acid, thereby incorporating into the resultant organothiophosphorus compound from about 0.1 to about 10 wt. % of phosphorus.
A lubricant composition comprising a major amount of a lubricant and from about 0.01 to about 10% of an organothiophosphorus compound comprising a metal salt of the reaction product of (1) a phosphorodithioic acid having the general formula:
- ##STR4## wherein R and R' are hydrocarbyl and are the same or different with each having up to about 30 carbon atoms and (2) a sulfurized olefin having from about 2 to about 8 carbon atoms and sufficient reactive olefinic sites to react with said acid, thereby incorporating into the resultant organothiophosphorus compound from about 0.1 to about 10 wt. % of phosphorus.
Dependencies are inferred from the claim text.