Afton Chemical Corporation

Lawrence Cunningham

John T Loper

Joseph W Roos

Nathaniel Cain

Scott D Schwab

Allen A Aradi

Dennis J Malfer

Jon A Regrut

May Duffield Thomas

John David Morris

Beth A Sloane

Joel A Evans

A copolymer including ethylene units and units of one or more Calpha-olefins. The copolymer has a number average molecular weight of less than 5,000 g/mol, as measured by GPC. The ethylene content of the copolymer is less than 80 mol %. At least 70% of molecules of the copolymer have an unsaturated group, and at least 70% of said unsaturated groups are located in a terminal vinylidene group or a tri-substituted isomer of a terminal vinylidene group. The copolymer has a crossover temperature of &#x2212;20&#xb0; C. or lower and/or a certain ethylene run length. Also disclosed are a method for making the copolymer and polyolefins plasticized with 1-40 wt % of the copolymer.

Microstructure-controlled copolymers of ethylene and C-Calpha-olefins

Ethylene-C-Calpha olefin copolymers, dispersants and lubricating oils/fuel compositions incorporating dispersants, and related methods are generally described herein. The copolymer may comprise ethylene-derived units and C-Calpha-olefin-derived units. The C-Calpha-olefin-derived units may have a carbon number from three to ten. For example, the C-Calpha-olefin-derived units may be propylene-derived units.

Polyolefin-derived dispersants

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There is disclosed a biodegradable fuel additive composition derived from at least one animal or plant source, and a fuel composition containing a biodegradable fuel additive composition derived from at least one animal or plant source useful for reducing the formation of engine deposits and for improving fuel economy of a vehicle combusting the fuel composition.

Biodegradable fuel performance additives

There is disclosed a method of reducing the conductivity of deposits formed from the combustion of a fuel comprising an iron-containing compound, said method comprising adding a manganese-containing compound to the fuel.

Fuel composition containing iron and manganese to reduce spark plug fouling

A fuel additive and method for reducing emissions from an engine combusting a middle distillate fuel. The fuel additive contains a synergistic combination of (a) a cetane improver and (b) a mineral oil co-additive.

Diesel fuel additive for reducing emissions

The use of fuel compositions comprising selected hydrocarbon oils as carriers for detergents has been found to reduce deposit formation as well as prolong the functionality of fuel injectors. The selection and utilization of particularly characterized hydrocarbon oils as detergent carriers reduces intake valve deposits and combustion chamber deposits, in comparison to conventionally used carrier fluids.

Fuel compositions comprising hydrocarbon oil carriers and methods for using the same

A method is disclosed that improves the operation of fuel combustion systems utilizing particulate filters. The method includes the combustion of a fuel emulsion in a fuel combustion system having a particulate filter. The fuel emulsion may comprise water and a fuel with the emulsion including a metal-containing compound, such as, for example, a manganese-containing compound.

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Mechanicsville, VA, United States of America

Lawrence Cunningham