Afton Chemical Corporation

Christopher James Dudding

Peter Growcott

Roger M Sheets

Abbas Kadkhodayan

Carl K Esche

Anthony Fagan

Andrew Robertson

Paul M Thomson

John T Loper

William Y Lam

Gregory Guinther

A fully formulated lubricating oil, lubricated surface, and lubricant additive concentrates for lubricants providing reduced sludge formation. The fully formulated lubricating oil composition has therein at least one succinimide dispersant derived from a polyalkylene compound having from about 50 to about 85% vinylidene double bonds in the compound, a metal containing detergent, at least one wear reducing agent, at least one antioxidant, and a hydrocarbon soluble titanium compound as a friction modifier. The lubricating oil composition is also substantially free of molybdenum compounds.

Titanium-containing lubricating oil composition

A lubricated surface and method for reducing wear between metal parts. The lubricated surface contains a base oil of lubricating viscosity and an amount of a hydrocarbon soluble titanium compound effective to provide a reduction in surface wear greater than a surface wear of a lubricant composition devoid of the hydrocarbon soluble titanium compound.

Additives and lubricant formulations for improved antiwear properties

In general terms, the present invention includes a process for producing a new zinc dialkyldithiophosphate (ZDDP) offering improved seal compatibility characteristics in engine and transmission oil packages. The present invention additionally includes zinc dialkyldithiophosphate produced in accordance with the disclosed methodologies, and oil additives, lubricants, and engines and transmission comprising the zinc dialkyldithiophosphate of the present invention.

Process for producing zinc dialkyldithiophosphates exhibiting improved seal compatibility properties

Growing community of inventors

Reading, United Kingdom

Christopher James Dudding