Sulfurized amine condensation products and lubricant compositions containing same
AssigneeMobil Oil Corporation
InventorGerassimos Frangatos
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Abstract
The present invention is directed to condensation products of amino substituted nitrogen heterocycles, such as pyridines, with unsaturated carboxylic acids as well as their sulfurization products. It has been found that additive amounts of such condensation reaction products when incorporated into lubricant compositions provide effective anti-rust properties against, for example, salt water corrosion.
Claims12
A sulfurized product obtained by the reaction of a hydrocarbyl amino substituted nitrogen heterocyclic compound with an unsaturated monocarboxylic acid of the formula:
- RCOOH
- wherein R is an alkenyl group, and alkedienyl group or an alketrienyl group containing from about 2 to about 50 carbon atoms in substantially stoichiometric amounts at a temperature of from about 150.degree. to 275.degree. C. to produce a product and thereafter sulfurizing said product with a substantially stoichiometric amount of elemental sulfur at a temperature of from about 150.degree. to about 225.degree. C.
A product obtained in the reaction of a hydrocarbyl amino substituted nitrogen heterocyclic compound selected from the group consisting of pyridine, pyrazine, pyrimidine, pyridazine, quinoline, isoquinoline, phthalazine, quinoxaline, quinazoline, triazine and their alkenyl, alkedienyl, alketrienyl, cycloalkyl, cycloalkenyl, cycloalkedienyl, geranyl, neryl, linalyl, phtdhyl, pinanyl and abietyl derivatives with an unsaturated monocarboxylic acid having from about 2 to about 50 carbon atoms in substantially stoichiometric amounts at a temperature of from about 150.degree. to about 275.degree. C. and sulfurizing the reaction products thereof by reacting same with substantially stoichiometric amounts of elemental sulfur or a sulfur derivative at temperatures of from about 150.degree. to about 225.degree. C.
Dependencies are inferred from the claim text.