The Lubrizol Corporation

Douglas M Barr

Matthew D Gieselman

Richard M Lange

Craig D Tipton

John Kent Pudelski

Jody A Kocsis

Virginia A Carrick

Stuart L Bartley

Seth L Crawley

Ewa A Bardasz

Renee A Eveland

R Ian Wilby

Claire L Thompson

Rodney J Mcatee

The invention provides a lubricating composition containing an oil of lubricating viscosity and a product obtainable from a 1,4-conjugate addition of an aminocarboxylic acid to an activated olefin. The invention further relates to a method of lubricating an internal combustion engine by lubricating the engine with the lubricating composition. The invention further relates to the use of the product disclosed herein as a lead corrosion inhibitor.

Compounds and a method of lubricating an internal combustion engine

Lubricant compositions comprising (a) an oil of lubricating viscosity; and (b) at least one non-metal-containing additive, comprising a nitrogen-containing dispersant having a total base number of at least about 90 are useful for lubricating an internal combustion engine. The lubricants have less than 1.0% sulfated ash and a total base number of at least about 8.5, and at least 30% of the total base number of the composition is provided by non-metal-containing additives. The lubricants exhibit a high TBN without deterioration of elastomeric seals.

Nitrogen-containing dispersant as an ashless TBN booster for lubricants

Cyclic oligomers derivable from the copolymerization of isobutylene and isoprene can be hydrogenated to form 1-(2,2,4-trimethylpentyl)-2-isopropyl-3,3,5,5-tetramethylcyclohexane and related compounds, which are useful in lubricants such as a traction fluids.

Cylic oligomer traction fluid

A novel crosslinked emulsifier is employed to produce a stable aqueous hydrocarbon fuel emulsion.

Emulsifier for an acqueous hydrocarbon fuel

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Hudson, OH, United States of America

Douglas M Barr