Exxon Research and Engineering Company

Exxon Chemical Patents, Inc.

Other

Exxon Production Research Company

Robert D Lundberg

Antonio Gutierrez

Dennis G Peiffer

Jacob I Emert

Henry S Makowski

Robert R Phillips

Ilan Duvdevani

Robert A Kleist

Abhimanyu Onkar Patil

Won R Song

Warren A Thaler

Pawan K Agarwal

Jan Bock

Thad O Walker

S Richard Turner

John C Newlove

Robert R Klein

Sudhin Datta

Lawrence P Sedillo

Albert Rossi

Howard W Turner

Malcolm Waddoups

Evelyn N Drake

Ralph Martin Kowalik

Pacifico V Manalastas

Douglas Brenner

Dennis E O'Brien

David John Lohse

Frank J Chen

Howard C Welborn, Jr

Henry S Makowski, Deceased

Robert A Weiss

Ricardo A Bloch

David Y Chung

Neville G Thame

Howard C Welborn, Deceased

Guido Sartori

Jack Ryer

Raymond F Watts

Mark J Struglinski

Kenneth William Pober

Morris L Evans

John E Johnston

Joseph Wagensommer

Vincent L Hughes

George W Schriver

Herve M Cheradame

Everett J Fuller

John E Chandler

Lowell Westerman

Yasuhiko Yoneto

Jean De Habimana

Jack Emert

Kenneth Lewtas

James E McGrath

Lee A McDougall

Pamela Jean Wright

John B Gardiner

Robert W Lenz

Charles P O'Farrell

Frank Carl Jagisch

Alan A Schetelich

Gregory C Giffin

Eric Bannister

John A Eckert

L Sherwood Minckler, Jr

William W Graessley

Allen C Werner

Henry S By Makowski, Deceased

Dennis G Pfeiffer

Gay Ver Strate

Antonio G Lazarus

Bernd Oster

Joseph Wagensomer

Laura J Colcord

Laura J Colcord-Hernandez

Antonio Gutterrez

Eugen R Werlein

Richardo A Bloch

Thomas Zawadski

Hydrocarbyl substituted C to C monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C to C monoolefin, preferably polyisobutylene, having a molecular weight of about 1500 to 5,000, preferably with a C to C monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 1.05 to 1.25 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting materials are useful per se as oil additives, or may be further reacted with amines, alcohols, amino alcohols, boric acid, etc. to form dispersants.

Oil soluble dispersant additives useful in oleaginous compositions

Hydrocarbyl substituted C.sub.4 to C.sub.10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a molecular weight of about 1500 to 5,000, preferably with a C.sub.4 to C.sub.10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 1.05 to 1.25 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting materials are useful per se as oil additives, or may be further reacted with amines, alcohols, amino alcohols, boric acid, etc. to form dispersants.

In its broadest sense of the present invention comprises an aqueous emulsion containing water, a normally thermoplastic sulfonated polymer and a plasticizer that is substantially miscible in the polymer is, non-volatile and substantially insoluble in the water phase of the emulsion. The aqueous emulsion of the present invention is formed by polymerizing a sulfonate containing monomer with at least one non-sulfonate containing monomer in the aqueous phase in the presence of a free radical initiator and in the presence of a plasticizer that is substantially miscible in the polymer, is non-volatile and substantially water insoluble.

Plasticized sulfonated ionomers

A copolymer comprising units of an unsaturated dicarboxylic monomer and an ethylene .alpha.-olefin macromer is disclosed. The macromer is an unsaturated ethylene .alpha.-olefin polymer comprising units of from ethylene and at least one .alpha.-olefin represented by the formula CH.sub.2 .dbd.CHR.sup.a, wherein R.sup.a is a C.sub.1 to C.sub.18 linear alkyl group or a C.sub.3 to C.sub.18 branched alkyl group; the ethylene .alpha.-olefin polymer has a number average molecular weight of from about 500 to about 100,000; and at least about 30% of the unsaturation in the ethylene .alpha.-olefin polymer is terminal vinylidene. The copolymer has a carbon-carbon backbone and contains succinic groups and hydrocarbyl groups. The copolymer can be derivatized by reaction with nucleophilic reactants including monoamines, polyamines, monoalcohols, polyols, amino alcohols, reactant metal compounds and mixtures thereof. The derivatized copolymers can be post-treated (e.g., borated) with one or more post-treating agents (e.g., boric acid). The copolymer, its derivatives, and post-treated derivatives are useful as additives (e.g., dispersants and viscosity index improvers) in fuels and in lubricating oils.

Copolymers of ethylene .alpha.-olefin macromers and dicarboxylic

Novel dispersant mixtures are provided, having improved lubricating oil performance characteristics, comprising nitrogen or ester containing dispersants selected from the group consisting of oil soluble salts, amides, imides, oxazoline and esters or mixtures thereof, wherein a first dispersant comprises a long chain hydrocarbon substituted mono- and dicarboxylic acid or their anhydrides derived from polymers of C.sub.2 to C.sub.10 monoolefins wherein the polymer has a number average molecular weight of at least about 1300 and wherein the second dispersant component is derived from such polymers having a number average molecular weight of from about 700 to 1150. The relatively high molecular weight dispersant is provided with from about 1.05 to 1.25 moles per mole of polyolefin of an alpha or beta unsaturated C.sub.4 to C.sub.10 dicarboxylic acid or anhydride or ester thereof. The relatively lower molecular weight dispersant is provided with from about 1.2 to 2.0 moles per mole of polyolefin of an alpha or beta unsaturated C.sub.4 to C.sub.10 dicarboxylic acid, anhydride or ester thereof. It has been found that mixtures of such high molecular weight-low functionality dispersants and low molecular weight-high functionality dispersants provides a dispersant, suitable for use in oleaginous materials such as lubricating oils, which provide surprisingly improved engine performance properties.

Dispersant additive mixtures for oleaginous compositions

Novel polymers comprising polyolefin-substituted amines grafted with aromatic N-containing monomers such as aniline, have been found to provide oil soluble polymers having dispersant and antioxidant properties in oleaginous compositions, including fuel and lubricating oils. The polymers of this invention are further useful in electrical applications. These materials are formed by a process which comprises: (a) contacting an amine compound having at least two reactive nitrogen moieties with at least one long chain hydrocarbon-substituted reactant in an amount and under conditions sufficient to form a N-containing polymer adduct containing reactive amine groups, and (b) contacting the N-containing polymer adduct with at least one aromatic N-containing monomer under polymerization conditions to graft said N-containing polymer adduct with aromatic N-containing polymer segments. The long chain hydrocarbon-substituted reactant can comprise materials such as (i) long chain hydrocarbons substituted with mono- or dicarboxylic acid, anhydride or ester groups; (ii) halogenated long chain hydrocarbons; (iii) mixtures of formaldehyde and a long chain hydrocarbyl substituted phenol; and (iv) mixtures of formaldehyde and a reaction product formed by reaction of long chain hydrocarbons substituted with mono- or dicarboxylic acid, anhydride or ester groups and an amino-substituted, optionally hydrocarbyl-substituted phenol.

Polyolefin-substituted amines grafted with poly(aromatic-n-monomers) for

A succinimide dispersant, which is the reaction product of hydrocarbons or polymers functionalized by halogenation (e.g. chlorination), thermal 'ene' reaction or free radical grafting and derivatized with a heavy polyamine. A heavy polyamine is a mixture of polyalkylenepolyamines comprising small amounts of lower polyamine oligomers such as tetraethylene pentamine and pentahexamine but primarily oligomers with 7 or more nitrogens, 2 or more primary amines per molecule, and more extensive branching than conventional polyamine mixtures.

Lubricating oil succinimide dispersants derived from heavy polyamine

Hydrocarbyl substituted C.sub.4 to C.sub.10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a molecular weight of about 700 to 1200, preferably with a C.sub.4 to C.sub.10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 1.2 to 2.0 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting materials may be further reacted with amines, alcohols, amino alcohols, boric acid, etc. to form dispersants.

High functionality low molecular weight oil soluble dispersant additives

The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene/alpha-olefin/diene interpolymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted interpolymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such s amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.

Ethylene .alpha.-olefin/diene interpolymer-substituted carboxylic acid

Hydrocarbyl substituted C.sub.4 to C.sub.10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a number arrange molecular weight of about 700 to 1200, preferably with a C.sub.4 to C.sub.10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 1.2 to 2.0 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting materials may be further reacted with amines, alcohols, amino alcohols, boric acid, etc. to form dispersants.

Polyolefin-substituted amines grafted with poly (aromatic-N-monomers)

Gel-free dispersant additives for lubricating and fuel oil compositions comprise at least one adduct of (A) .alpha.-olefin homopolymer or interpolymer of 700 to 10,000 number average molecular weight, free radically grafted with an average of from about 0.5 to about 5 carboxylic acid producing moieties per polymer chain, and (B) at least one non-aromatic nucleophilic post-treating reactant selected from (i) amine compounds containing only a single reactive amino group per molecule, (ii) alcohol compounds containing only a single hydroxy group per molecule, (iii) polyamine compounds containing at least two reactive amino groups per molecule, (iv) polyol compounds containing at least two reactive hydroxy groups per molecule, (v) aminoalcohol compounds containing at least one reactive amino group and at least one reactive hydroxy group per molecule, and (vi) mixtures of (i) to (v); provided that when said post-treating reactant includes one or more of (iii), (iv) or (v), the reaction between (A) and (B) is conducted in the presence of sufficient chain-stopping or end-capping co-reactant (C) to ensure that the grafted and post-reacted product mixture is gel-free.

Gel-free alpha-olefin dispersant additives useful in oleaginous

The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene/alpha-olefin/diene interpolymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted interpolymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful lubricating oil additives, e.g., as dispersants.

Ethylene alpha-olefin/diene interpolymer-substituted carboxylic acid

Gel-free ethylene interpolymer dispersant additives useful in oleaginous

Polyolefin-substituted amines grafted with poly(aromatic-N-monomers) for

Growing community of inventors

Bridgewater, NJ, United States of America

Robert D Lundberg