Exxon Chemical Patents, Inc.

Infineum International Limited

University of Massachusetts

Infineum USA LP

Chemtura Corporation

Exxon Chemical Company

Jacob I Emert

Robert D Lundberg

Antonio Gutierrez

Keith R Gorda

William B Eckstrom

Joseph V Cusumano

Warren A Thaler

William D Diana

Richard Henry Schlosberg

Jon E Stanat

Malcolm Waddoups

Stephen Zushma

David A Young

David C Dankworth

Albert Rossi

James Peter Stokes

David Edward Gindelberger

Rudolf Faust

Istvan T Horvath

Jaimes Sher

Tushar Kanti Bera

Jun Hua

Jie Cheng

David John Lohse

Michael J Keenan

Salvatore Rea

Edris Eileen Manry

Philip Dimitrov

Jeffrey William Frederick

Won R Song

Rolfe J Hartley

Jeremy Roger Spencer

Matthew David Irving

Nancy Z Diggs

Andrew J D Ritchie

Jai G Bansal

Richard Joseph Severt

Mahn Won Kim

Ricardo A Bloch

Albert Ilya Yezrielev

Robert G Rowland

David J Martella

Robert Robson

Mark G Stevens

Ian A W Bell

Thomas Skourlis

Christopher J Locke

Sonia Oberoi

Roy L Pruett

Glen P Fetterman

Rajeev Kumar

Raymond Fellows

Michael T Minotti

Peter J Hobin

Jeremy Weber

Isabel P MacDonald

William B Diana

Christopher Brian Locke

Dennis G Peiffer

Abhimanyu Onkar Patil

Kenneth Lewtas

Alan Roy Katritzky

Frank J Chen

Darrell W Brownawell

Robert Dryden Tack

Michael D Hoey

Joseph McLellan

Alan Mark Schilowitz

Robert A Kleist

Theodore E Nalesnik

Pamela Jean Wright

Robert M Koros

Joseph F Stieber

Philip Skinner

Xinhua Li

Laurent Chambard

Joseph P Hartley

Robert William Shaw

Peter D Watts

Cruise K Jones

James Christian Dodd

Sandip Agarwal

Anne Young

Stephen Arrowsmith

Stuart Briggs

Peter Wright

Gregory C Giffin

Eric Bannister

Rachel Tundel

Patrick Reust

Christopher J Booth

Michael L Alessi

Harold Wilbur Margo

Dean B Clarke

Neal J Milne

Gary Higton

Robert A Wilkinson

Chin Chu

Kyle Nesti

Frederick Wein Girshick

A lubricant additive concentrate containing (i) dispersant that is the polybutenyl succinimide reaction product of a polyamine and polybutenyl succinic anhydride (PIBSA) derived from polybutene having a number average molecular weight (M) of from about 1300 to about 2500 daltons and a terminal vinylidene content of at least about 50% and maleic anhydride via an ene maleation process; (ii) overbased magnesium colloidal detergent having a total base number (TBN) of from about 300 to about 900 mg KOH/g; and (iii) organic friction modifier selected from hydroxyalkyl alkyl amines of Cto Chydrocarbons, at least one hydroxyalkyl alkyl ether amines of Cto Chydrocarbons, at least one alkyl ester amine derived from triethanol amine having a Cto Chydrocarbyl substituent, at least one non-basic, fatty acid amide, or a mixture thereof; wherein the combined mass % of dispersant (i) and overbased magnesium colloidal detergent (ii) in said concentrate is from about 15 to about 50 mass %: the mass ratio of (i):(ii) is from about 1:1 to about 6:1; and the concentrate contains from about 2 to about 10 mass % of organic friction modifier (iii); the remainder of the concentrate being composed of base oil and additives other than dispersant (i), overbased magnesium colloidal detergent (ii) and organic friction modifier (iii).

Additive concentrates for the formulation of lubricating oil compositions

An oleaginous nanoparticle dispersion of nanoparticles having a core of an organic base material immobilized within a surfactant layer, the use thereof as a low ash, or ash-free source of TBN in lubricating oil compositions, and lubricating oil compositions formulated with such oleaginous nanoparticle dispersions.

Low ash and ash-free acid neutralizing compositions and lubricating oil compositions containing same

A lubricant additive concentrate containing 30 to 80 mass % oil of lubricating viscosity and from 20 to 70 mass % of additive; wherein from 30 to 90 mass % of the additive is (i) hybrid overbased colloidal detergent derived from sulfonate surfactant and hydroxybenzoate surfactant; and (ii) polyalkenyl succinimide dispersant derived from a polyalkene having a number average molecular weight (M) of from 1300 to 2500 daltons, and wherein the mass ratio of polyalkenyl succinimide dispersant (ii) to hybrid overbased colloidal detergent (i) in the lubricant additive is from 25:1 to 1:1.

A process for producing a borated polyalkenyl succinimide dispersant composition in which the boron is incorporated primarily as cyclic metaboric acid moieties and the equivalents of boron incorporated per equivalent of nitrogen in the succinimide carrier is greater than 2; in which process a slurry of orthoboric acid is added to a polyalkenyl succinimide to form a reaction mixture, which reaction mixture is then heated under conditions (at a temperature and pressure and for a time) sufficient to remove from the reaction mixture from about 0.8 to about 1.2 moles of water of reaction per mole of boric acid charged.

Highly borated dispersant concentrates for lubricating oil compositions and methods for forming same

A lubricant additive concentrate having a kinematic viscosity of from about 40 to about 300 cSt at 100&#xb0; C., containing a dispersant-detergent colloid complex, including a polybutenyl succinimide dispersant that is the reaction product of a polyamine and polybutenyl succinic anhydride (PIBSA) derived from polybutene having a number average molecular weight (M) of from about 1300 to about 2500 and a terminal vinylidene content of at least about 65%, and succinic and/or maleic anhydride via an ene maleation process, the PIBSA having a succinic anhydride (SA) functionality (F) of greater than 1.7 and less than about 2.5; and a detergent colloid including overbased detergent having a total base number (TBN) of from about 370 to about 1000 mg KOH/g derived from one or more surfactants selected from (i) sulfonate; (ii) phenate; and (iii) carboxylate surfactant; in which the mass ratio of the dispersant to the overbased detergent colloid in the concentrate is from about 0.5 to about 5.0; and the dispersant and overbased colloidal together constitute at least 28 mass %, of the concentrate.

Dispersant additives and additive concentrates and lubricating oil compositions containing same

An improved process for the preparation of polybutene having an exo-olefin content of at least 50 mol. % by the polymerization of iso-butene, or a Cfeed containing iso-butene and other Colefins using (i) a Lewis acid.Lewis base catalyst complex and an alkyl halide initiator, in a substantially or completely apolar polymerization medium, in the presence of a hindered alcohol or alkoxyaluminum dichloride. In the above polymerization reaction, it has been found that a hindered alcohol or hindered alkoxyaluminum dichloride will function as an 'exo enhancer' resulting in high isobutene conversion and the production of a polybutene product having a high terminal vinylidene content, while maintaining a target molecular weight.

Method for forming highly reactive olefin functional polymers

A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, from an impurity-containing isobutylene or a mixed Chydrocarbyl feedstock containing isobutylene in which the water content of the feedstock is controlled to be at least equal to the content of polar impurities in the feedstock, and less than the concentration at which the water causes a decrease in vinylidene end-group selectivity.

Polymerization initiating system and method to produce highly reactive olefin functional polymers

A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, from an isobutylene or a mixed Chydrocarbyl feedstock containing isobutylene. To achieve a viable process, water is added to the catalyst stream or the feedstock in the overall range of 0.05 mM to less than 5 mM per liter of feedstock.

A method for producing highly reactive olefin polymers wherein at least 50 mol % of the polymer chains have terminal double bonds, and a novel polymerization initiating system for accomplishing the same includes contacting isobutene or an isobutene-containing monomer mixture, wherein a Lewis acid catalyst is complexed with an oxygen and/or sulfur-containing Lewis base, in an apolar solvent, and wherein an initiator is employed to initiate polymerization of the isobutene or isobutene-containing monomer mixture.

A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, and a novel polymerization initiating system for accomplishing same.

Para-alkylated substituted diphenylamines are made by catalytically alkylating diphenylamine with a branched-chain alkene, such as propene, oligomer mixture in which the oligomer present in the greatest percentage has 15-24 carbon atoms. The alkylated diphenylamines are useful crankcase lubricant additives such as for reducing piston deposits and engine sludge.

Additives and lubricating oil compositions containing same

Tetra-alkylated phenylenediamine compounds useful as ashless TBN sources for lubricating oil compositions that are compatible with fluoroelastomeric engine seal materials and meet copper corrosion requirements, and lubricating oil compositions containing such phenylenediamine compounds.

Lubrication and lubricating oil compositions

Compositions in the form of lubricating oil compositions, greases, fuels or functional fluids containing, in the form of Michael adducts, N-substituted phenylenediamine additives in which at least one of the substituents on the N atoms carries a carbonyl group that is connected to an alkyl, alkoxyalkyl, or alkylthioalkyl group either directly or via an oxygen atom.

Additive compositions

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Brooklyn, NY, United States of America

Jacob I Emert