Mobil Oil Corporation

Gerassimos Frangatos

Robert H Davis

Effective demulsifier additives prepared by the reaction of polyalkylenediamines with such carboxylic acids as naphthoic and abietic provide good resistance to water.

Polyoxyalkylene diamides as lubricant additives

Excellent antiwear and load-carrying characteristics are imparted to lubricants when dialkyl phosphonates which have undergone condensation reactions with aldehydes and polyamines are incorporated therein.

Phosphorus-containing reaction products as antiwear and load carrying

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.

Sulfurized amine condensation products and lubricant compositions

The invention is directed to lubricants having therein an antioxidant quantity of a reaction product from phosphonates, amines and carbonyl-containing compounds.

Lubricant composition containing phosphite-diarylamine-carbonyl compound

Products from aminoguanidines or their salts, monocarboxylic acids and sulfur and their use as anti-rust and anti-corrosion additives are covered herein.

Sulfurized aminoguanidine reaction product and lubricant compositions

Excellent load-carrying and antiwear additives are provided when reaction products of dialkylphosphonates and maleate esters are converted to amine derivatives.

Amine derivatives of dialkylphosphonate-alklmaleate ester reaction

The invention provides a lubricant additive and a lubricant composition having improved demulsifying and anti-wear properties resulting from the addition thereto of such additive, which is made by reacting a partially esterified multifunctional alcohol with a phosphorus oxyhalide or a trihydrocarbyl phosphate.

Lubricant compositions

The invention provides a lubricant additive having improved antioxidant and antiwear properties made by (1) reacting an alkenylsuccinic anhydride (ASA) with an aminopolyhydroxy compound and (2) reacting the product thus obtained with a phosphorus trihalide and a polyhydroxyaromatic compound. The invention also provides a lubricant composition containing the additive.

The antiwear and load carrying properties of lubricants are improved by incorporating therein a product prepared by reacting a trihydrocarbyl phosphate with a methallyl halide and a halogen.

The antiwear and load carrying properties of lubricants are improved by incorporating therein a product prepared by reacting a chlorinated wax with a trihydrocarbyl phosphite.

Lubricant composition

The invention provides a lubricant composition having improved antiwear properties resulting from the addition thereto of a product made by reacting a partially esterified multifunctional alcohol with a phosphorus trihalide or a dihydrocarbyl phosphonate.

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Haddonfield, NJ, United States of America

Gerassimos Frangatos