Exxonmobil Research and Engineering Company

Michael Eugene Landis

Jacob Joseph Habeeb

Abhimanyu Onkar Patil

Steven Paul Rucker

Brandon T Weldon

Douglas Edward Deckman

Manika Varma-Nair

Manuel Anthony Francisco

Jessica Lee Prince

The anti-wear and anti-friction performance of a lubricating oil is improved by the addition thereto of an additive amount of ionic liquids.

Method for reducing friction/wear of formulated lubricating oils by use of ionic liquids as anti-friction/anti-wear additives

The present invention is directed to green lubricant compositions comprising a base oil and an effective amount of premixed additives that improve wear protection and reduce phosphorus emissions.

Green lubricant compositions

The present invention is directed to lubricating oils exhibiting improved resistance to oxidation and deposit/sludge formation comprising a lubricant base oil and catalytic antioxidants comprising an effective amount of a) one or more polymetal organometallic compound; and, b) effective amounts of one or more substituted N,N'-diaryl-o-phenylenediamine compounds or c) one or more hindered phenol compounds or both, to a method for improving the antioxidancy and the resistance to deposit/sludge formation of formulated lubricating oil compositions by the addition thereto of an effective amount of the aforementioned catalytic antioxidants, and to an additive concentrate containing the aforementioned catalytic antioxidants.

Catalytic antioxidants

The present invention is directed to lubricating oils exhibiting improved resistance to oxidation and deposit/sludge formation comprising a lubricant base oil and an effective amount of a catalytic antioxidant comprising one or more polymetal organometallic compound, to a method for improving the antioxidancy and the resistance to deposit/sludge formation of formulated lubricating oil compositions by the addition thereto of an effective amount of the aforementioned polymetal organometallic compound, and to an additive concentrate containing the aforementioned polymetal organometallic compound.

The invention comprises lubricating compositions and hydraulic fluids containing N,N'-diaryl-o-phenylenediamine compounds that impart good levels of oxidation inhibition in the lubricants and hydraulic fluids. The invention further comprises a method of making N,N&#x2032;-diaryl-o-phenylenediamine compounds.

Growing community of inventors

Mullica Hill, NJ, United States of America

Michael Eugene Landis