Exxon Chemical Patents, Inc.

Exxon Research and Engineering Company

Infineum International Limited

Infineum USA LP

Iain More

Graham Jackson

Robert Dryden Tack

Wayne M Camarco

Christophe Ledeore

Kenneth Lewtas

Alan Mark Schilowitz

Rinaldo Caprotti

Jacqueline D Bland

Carlo S Fava

Darryl R Smith

Sally J Ayres

Ian W Harper

An additive composition for a fuel oil composition and that is free of polycyclic carboxylic acids and of acid derivatives thereof comprises an additive that comprises one or more monocarboxylic acids, each having from 10 to 24 carbon atoms, or acid derivatives thereof, optionally in combination with one or both of an anti-oxidant additive and an anti-static additive.

Additives and fuel oil compositions

Oils having improved low temperature properties and additives for use therein.

Lubricating oil compositions

Specific polymers of ethylene and different unsaturated esters provide oils with improved low temperature flow properties.

Additives for oil compositions

There are disclosed fuel compositions containing an additive formed by admixture of (i) at least one ethylene polymer, (ii) the product of the condensation reaction between an aldehyde or ketone or reactive equivalent thereof and at least one compound comprising one or more aromatic moieties having at least one substituent of the formula XR,and one further substituent R,wherein X is oxygen of sulfur, R,is hydrogen or a moiety bearing at least one hydrocarbyl group and R,represents a hydrocarbyl group and (iii) at least one oil soluble polar nitrogen compound different from the condensation product and having one or more substituents of the formula NR,where R,represents a hydrocarbyl group containing 8 to 40 carbon atoms.

Additive concentrate for use with gasolines

Additives for distillate fuel are a copolymer of (1) an alpha olefin having two to seventeen carbon atoms per molecule or an aromatic substituted olefin having eight to forty carbon atoms per molecule and (2) a mono- or di-alkyl fumarate, itaconate, citraconate, mesaconate, trans- or cis-glutaconate, in which the alkyl group has 8 to 23 carbon atoms.

Fuel compositions

Fuel oil additive and compositions

The use as an additive to improve the low temperature properties of distillate fuels having a cloud point (wax appearance temperature) above 0.degree. C. and containing more than 5 wt. % wax at 10.degree. C. below the cloud point (wax appearance temperature) of a mixture of a comb polymer together with a poly-alkyl ester, ether, ester/ether of a polyhydroxy compound.

Chemical compositions and use as fuel additives

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Iain More