Exxonmobil Chemical Patents Inc.

Exxon Chemical Patents, Inc.

Exxon Research and Engineering Company

The Yokohama Rubber Co., Ltd.

Exxonmobil Upstream Research Company

Infineum USA LP

Exxonmobile Chemical Patents Inc.

James Peter Stokes

Jacob I Emert

Jon E Stanat

Albert Rossi

David Edward Gindelberger

Jaimes Sher

Weiqing Weng

David C Dankworth

Robert Norman Webb

Keith R Gorda

William B Eckstrom

Joseph V Cusumano

Antonio Gutierrez

Anthony Jay Dias

Caiguo Gong

Saifudin M Abubakar

Aaron N Bloch

Jihad Mohammed Dakka

Patrick Brant

Andy Haishung Tsou

Ramesh Varadaraj

John Scott Buchanan

Warren A Thaler

Doron Levin

Jacob Joseph Habeeb

Martin Leo Gorbaty

David John Lohse

Mun Fu Tse

Charles Morris Smith

Cornelius Hendrick Brons

Alan Anthony Galuska

Yoshiaki Kirino

Yoshihiro Soeda

Timothy D Shaffer

Walter Harvey Waddell

William D Diana

Donald Sheley Tracey

Michael Brendan Rodgers

Beverly Jean Poole

John L Robbins

Edmund J Stachowski, Iii

Jane Chi-Ya Cheng

Salvatore Rea

Molly Westermann Johnston

Srivatsan Watson Srinivas

Michael Alan Steckel

Kriss Randall Karp

Mun-Fu Tse

Sabyasachi Bhattacharya

William B Diana

Arthur Joseph Sullivan

Carmen Neagu

Dirk Frans Rouckhout

Andrew J D Ritchie

Deborah J Davis

Matthew Brian Measmer

Yanan Gong

Li Yuan

José Guadalupe Santiesteban

Robert A Wilkinson

Gary Higton

Isabel P MacDonald

Dan Peng

Francois Henri Chambon

Molly J Upton

David P Goshorn

Gerard J Hughes

Leonard J Duncan

Karl J Van Driesen

Donald S Tracey

Arthur J Sullivan

Edmund J Stachowski

Beverly J Poole

Jacob Isaac Emert

Yoshiaki c/o The Yokohama Rubber Co Ltd Kirino

Isabel Petrina Macdonald

Yoshihiro c/o The Yokohama Rubber Co Ltd Soeda

Rubber blends including natural rubber and at least one propylene-based elastomer are provided herein. The rubber blends have good anti-aging properties as well as high gloss. Methods of making the rubber blends and articles made from the rubber blends, such as tires, are also provided.

Rubber blends, articles thereof, and methods of making the same

Described herein are polymer blends comprising (a) a propylene impact copolymer comprising a polypropylene component present in a continuous phase and a first elastomeric component present in a disperse phase; and (b) a second elastomeric component, and the interfacial tension between the second elastomeric component and the impact copolymer is at least 1.2 mN/m. The polymer blends of present invention provides improved gloss and impact properties.

Propylene impact copolymer blends with improved gloss

Copolymer are formed by polymerizing Cto Cisoolefin monomers and alkyl-styrene monomers. The method comprises first providing feed streams into a reactor. The various feed streams provide monomers, a polar diluent or polar diluent mixture, and a catalyst system into the reactor. In the reactor, the feed streams contact one another so that the monomers form a polymer in a stable slurry, wherein the amount of polymer in the slurry yields a slurry concentration greater than 22 wt %. The ratio of moles of polymer formed per mole initiator is in the range of 0.25 to 4.0 moles polymer per mole of initiator.

Methods of production of alkylstyrene/isoolefin polymers

A process for producing a nanocomposite of a halogenated elastomer and an inorganic, exfoliated clay includes the in-situ protonation of a modifier, which may be an alkylamine, arylamine or an alkylarylamine. This process can be integrated with a polymer halogenation process. The nanocomposite so formed has improved air barrier properties and is suitable for use as a tire innerliner or innertube.

Polymer-clay nanocomposite and process for preparing the same

A vulcanizable layered composition comprising at least two layers and at least one tie layer, wherein the first layer of the two layers is a fluid permeation prevention layer preferably comprising:

Construction comprising tie layer

The present invention provides an elastomeric composition processable in a curable, filled rubber formulation. The composition comprises a halogenated interpolymer of a Cto Cisoolefin and from 3 to 20 weight percent alkylstyrene and comprising from 0.2 to 2 mole percent haloalkylstyrene, a Mooney viscosity less than 27, a number average molecular weight less than 270,000, a weight average molecular weight less than 470,000, a z-average molecular weight less than 700,000, and a branching index (g') from 0.4 to 1.1. Also disclosed are a method of making a cured, filled rubber article, comprising compounding the elastomeric composition with filler and curative, processing the compounded composition to form a shape of the article, and curing the composition to obtain the article in the formed shape, as well as a tire comprising an innerliner made by the method.

Processable filled, curable halogenated isoolefin elastomers

The present invention relates to modified layered fillers made from layered fillers and modifying agents and processes to produce the same. The invention also relates to nanocomposite compositions made from these modified layered fillers and elastomers, and processes to produce the same, and their use in articles.

Modified layered fillers and their use to produce nanocomposite compositions

A process for producing phenol and methyl ethyl ketone comprises contacting benzene with a Calkylating agent under alkylation conditions with catalyst comprising zeolite beta or a molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4&#xb1;0.25, 6.9&#xb1;0.15, 3.57&#xb1;0.07 and 3.42&#xb1;0.07 Angstrom to produce an alkylation effluent comprising sec-butylbenzene. The sec-butylbenzene is then oxidized to produce a hydroperoxide and the hydroperoxide is decomposed to produce phenol and methyl ethyl ketone.

Process for producing phenol and methyl ethyl ketone

The present invention is a process to produce a nanocomposite of a elastomer and organic clay, e.g. an exfoliated clay, suitable for use as an air barrier. The process can include the steps of: (a) contacting a solution () of butyl rubber in an organic solvent with a halogen () to form a halogenated butyl rubber solution (); (b) neutralizing the halogenated butyl rubber solution; (c) functionalizing at least a portion () of the halogenated butyl rubber; (d) mixing a dispersion () of clay with the functionalized butyl rubber () to form a masterbatch () comprising a polymer-clay nanocomposite; (e) combining the masterbatch () with the rest of the halogenated butyl rubber solution () to form a second mixture (); (e) recovering the nanocomposite from the second mixture (). The nanocomposite so formed has improved air barrier properties and is suitable for use as a tire innerliner or innertube.

Split-stream process for making nanocomposites

A method for recovering oil in a reservoir by generating chemical microexplosions in the reservoir. The invention treats the hydrocarbon-bearing reservoir by decomposing in situ at least one PEH-3CO, thereby generating heat, shock, and CO . A preferred method comprises the steps of depositing PEH-3CO into the formation and depositing an acid into the formation to cause the PEH-3CO to decompose and generate heat and gas.

Method of generating heat and vibration in a subterranean hydrocarbon-bearing formation

Polymers (including copolymers) derived from one or more olefins, such including ethylene and C -C &agr;-olefins such as propylene and 1-butene, which polymers have (a) an average ethylene sequence length, ESL, of from, about 1.0 to less than about 3.0; (b) an average of at least 5 branches per 100 carbon atoms of the polymer chains comprising the polymer; (c) at least about 50% of said branches being methyl and/or ethyl branches; (d) at least about 30% of said polymer chains terminated with a vinyl or vinylene group; (e) a number average molecular weight, Mn, of from about 300 to about 15,000 when the polymer is intended for dispersant or wax crystal modifier uses and up to about 500,000 where intended for viscosity modifier uses; and (f) substantial solubility in hydrocarbon and/or synthetic base oil. The polymers are produced using late-transition-metal catalyst systems and, preferably, inexpensive, highly dilute refinery or steam cracker feed streams that have undergone only limited clean-up steps. Fuel and lubricating oil additives, particularly dispersants, wax crystal modifiers and flow improvers, are produced. Where functionalization and derivatization of these polymers is required for such additives it is facilitated by the olefinic structures available in the polymer chains.

Polymers derived from olefins useful as lubricant and fuel oil additives, processes for preparation of such polymers and additives and use thereof (PT-1267)

The present invention relates to a cold-drawn breathable film formed from a blend of a soft polymer component and a hard polymer component. The soft polymer component (SPC) is a copolymer of a major olefinic monomer and a minor olefinic monomer. The major olefinic monomer is either ethylene or propylene and forms the majority of the SPC. Preferred films after cold-drawing exhibit a water vapor transmission rate (WVTR) of at least 100 g-mil/m -day.

Breathable films and method for making

Concentrates for lubricating oil compositions are prepared by mixing at elevated temperature: (i) at least one high molecular weight ashless dispersant; (ii) at least one oil-soluble overbased metal detergent; and (iii) at least one surface-active agent comprising a low molecular weight hydroxyl or amine group.

High molecular weight dispersant compositions and their preparation

Polar monomer-containing copolymers derived from at least one &agr;, &bgr; unsaturated carbonyl compound, such as alkyl acrylates and one or more olefins, such olefins including ethylene and C,-C,&agr;-olefins such as propylene and 1-butene, which copolymers have (a) an average ethylene sequence length, ESL, of from about 1.0 to less than about 3.0; (b) an average of at least 5 branches per 100 carbon atoms of the copolymer chains comprising the copolymer; (c) at least about 50% of said branches being methyl and/or ethyl branches; (d) substantially all of said incorporated polar monomer is present at the terminal position of said branches; (e) at least about 30% of said copolymer chains terminated with a vinyl or vinylene group; (f) a number average molecular weight, Mn, of from about 300 to about 15,000 when the copolymer is intended for dipersant or wax crystal modifier uses and up to about 500,000 where intended for viscosity modifier uses; and (g) substantial solubility in hydrocarbon and/or synthetic base oil. The copolymers are produced using late-transition-metal catalyst systems and, as an olefin monomer source other than ethylene preferably inexpensive, highly dilute refinery or steam cracker feed streams that have undergone only limited clean-up steps. Fuel and lubricating oil additives, are produced. Where functionalization and derivatization of these copolymers is required for such additives it is facilitated by the olefinic structures available in the copolymer chains.

Polar monomer containing copolymers derived from olefins useful as lubricant and fuel oil additives, processes for preparation of such copolymers and additives and use thereof

Polar monomer-containing copolymers derived from at least one .alpha., .beta. unsaturated carbonyl compound, such as alkyl acrylates and one or more olefins, such olefins including ethylene and C.sub.3 -C.sub.20 .alpha.-olefins such as propylene and 1-butene, which copolymers have (a) an average ethylene sequence length, ESL, of from about 1.0 to less than about 3.0; (b) an average of at least 5 branches per 100 carbon atoms of the copolymer chains comprising the copolymer; (c) at least about 50% of said branches being methyl and/or ethyl branches; (d) substantially all of said incorporated polar monomer is present at the terminal position of said branches; (e) at least about 30% of said copolymer chains terminated with a vinyl or vinylene group; (f) a number average molecular weight, Mn, of from about 300 to about 15,000 when the copolymer is intended for dispersant or wax crystal modifier uses and up to about 500,000 where intended for viscosity modifier uses; and (g) substantial solubility in hydrocarbon and/or synthetic base oil. The copolymers are produced using late-transition-metal catalyst systems and, as an olefin monomer source other than ethylene preferably inexpensive, highly dilute refinery or steam cracker feed streams that have undergone only limited clean-up steps. Fuel and lubricating oil additives, particularly dispersants, wax crystal modifiers and flow improvers, are produced. Where functionalization and derivatization of these copolymers is required for such additives it is facilitated by the olefinic structures available in the copolymer chains.

Polar monomer containing copolymers derived from olefins useful as

Growing community of inventors

Katy, TX, United States of America

James Peter Stokes