Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

Exxon Chemical Patents, Inc.

Exxon Research and Engineering Company

Michelin Recherche Et Technique S.a.

Societe Detechnologie Michelin

David John Lohse

Bryan Robert Chapman

Bruce R Lundmark

Sandra Denise Schregenberger

Nikos Hadjichristidis

Wen Li

Manika Varma-Nair

Edward N Kresge

Kenneth Lewtas

Weiqing Weng

Chon-Yie Lin

Arnold Lustiger

Jean M Tancrede

Blair Alfred Graham

Anthony George Karandinos

Keith A Nelson

Olivier J F Georjon

Robert D Lundberg

Sudhin Datta

Jacob I Emert

Robert J Wittenbrink

Bruce Alan Harrington

Cesar Alberto Garcia-Franco

Lewis J Fetters

Henry Wu-Hsiang Yang

Andy Haishung Tsou

Charles C Cozewith

Aspy Keki Mehta

Chia Yung Cheng

Norman Yang

Henry W Yang

James Norris Coffey

Scott Thomas Milner

Petra Eiselt

Jeffrey Theodore Zudock

Galina Ourieva

Robert A Mendelson

David W Mead

Peijun Jiang

Abhimanyu Onkar Patil

Ramesh Varadaraj

Richard Henry Schlosberg

Donald N Schulz

Gabor Kiss

Sunny Jacob

Armenag Hagop Dekmezian

Palanisamy Arjunan

Christine A Costello

Cornelius Hendrick Brons

Michael Gerard Matturro

Pamela Jean Wright

Robert Patrick Reynolds, Jr

Bruce Allan Harrington

Thomas T Sun

Peter William Manders

Michael Brian Kelly

James Richard Ayers

Paul Edward Schuenzel

César Garcia-Franco

Patrick Brant

Jo Ann M Canich

Jung Hun Lee

Pradeep P Shirodkar

Anthony Jay Dias

Rainer Kolb

Hans Thomann

Robert Norman Webb

James Peter Stokes

Adriana S Silva

Caiguo Gong

John P Dismukes

John W Chu

Michael Brendan Rodgers

Rick M Davis

Edmund J Stachowski, Iii

Chon Yie Lin

Florin Barsan

Suzzy C H Ho

Molly Westermann Johnston

Johannes Matthieu Soulages

Suzzy Chen Hsi Ho

Anthony Poloso

Guy Joseph Wouters

Brian Bergman

Ronald N Cooke

Scott C Solis

Thomas C Hodge

Barry C Trudell

Jyi-Faa Hwang

Molly J Upton

Miguel O Mota

Olivier J Georjon

Edmund J Stachowski

Jeffery Zudock

Chon Y Lin

Branched ethylene-propylene-diene elastomers (bEPDM) and processes for making the bEPDM's comprising combining a catalyst precursor and an activator at a temperature within a range from 90&#xb0; C. to 160&#xb0; C. with ethylene, a C3 to C12 &#x3b1;-olefin, a non-conjugated diene, and a dual-polymerizable diene, where the catalyst precursor is a metallocene catalyst precursor, preferably according to one of various structures including any two ligands selected from cyclopentadienyl ligands and ligands isolobal to the cyclopentadienyl group.

Process for making branched EPDM and the EPDM therefrom

Provided are blends of branched hydrocarbon comb polymers having tailored branching and molecular weight parameters, with substantially linear polymers. Such blends have been found to have improved extensional rheological properties, while maintaining nearly the viscosity of the substantially linear polymers. The blends of the hydrocarbon comb polymers with the substantially linear polymers thus maintain the extrusion processing characteristics of the linear polymer alone, but have improved extensional flow processability, with strain hardening ratios (SHR) greater than 1. The blends are effective in blown film processing. Also disclosed are related methods for improving extensional flow processability using the branched hydrocarbon comb polymers, as well as the branched hydrocarbon comb polymers themselves, including as a property enhancing additive for such substantially linear polymers.

Branched saturated hydrocarbon polymers as extensional rheology modifiers without impacting shear properties

A halogenated elastomer partially functionalized with triethylamine, in a mixture with fiiier and a cure package, suitable for use as an air barrier in an innertube or tire innerliner, is disclosed. The halogenated elastomer can be a polymer comprising Cto Cisoolefm derived units, para-alkylstyrene derived units, para-(haloalkylstyrene) derived units, and para-(triethylammoniumalkylstyrene) derived units. The Mooney viscosity of the elastomer can be controlled by the degree of triethylamine functionalization. Also disclosed is a method for making an article using the tri ethy iamine-functionalized elastomer.

Triethylamine functionalized elastomer in barrier applications

A process for making a substantially saturated dendritic hydrocarbon polymer. The process has the following steps: (a) polymerizing an amount of a first alkadiene monomer under anionic conditions in the presence of a first organic monolithium initiator to produce a linear polyalkadiene having a lithiated chain end; (b) reacting the linear polyalkadiene with an amount of a second organic monolithium initiator in the presence of tetramethylethylene diamine to form a multilithiated polyalkadiene; (c) reacting the multilithiated polyalkadiene with an amount of a second alkadiene monomer to form a branched polyalkadiene; (d) repeating steps (b) and (c) with the branched polyalkadiene one or more times to prepare a dendritic polyalkadiene; and (e) hydrogenating the dendritic polyalkadiene to form the substantially saturated dendritic hydrocarbon polymer.

Process for making a saturated dendritic hydrocarbon polymer

A process for making a substantially saturated dendritic hydrocarbon polymer. The process has the following steps: (a) polymerizing an amount of one or more alkadiene monomers and/or one or more alkenylaromatic polymers under anionic conditions in the presence of a di- or tri-functional organic lithium initiator to produce a polyalkadiene defining a multiplicity of lithiated chain ends; (b) reacting the polyalkadiene with an amount of a tri- or di-functional silane coupling agent to form a dendritic polyalkadiene; and (c) hydrogenating the dendritic polyalkadiene to form a substantially saturated dendritic hydrocarbon polymer. Also a process for process for making a dendritic hydrocarbon polymer, comprising: (a) polymerizing an amount of one or more alkadiene monomers and/or one or more alkenylaromatic polymers under anionic conditions in the presence of a di- or tri-functional organic lithium initiator to produce a hydrocarbon polymer defining a multiplicity of lithiated chain ends; and (b) reacting the hydrocarbon polymer with an amount of a tri- or di-functional silane coupling agent to form a dendritic hydrocarbon polymer.

Process for making dendritic hydrocarbon 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

This invention relates to the preparation of thermoplastic vulcanizates (TPVs) with unique morphological features, more specifically, this invention relates to a method for preparing TPV compositions wherein the mixing of plastomers and elastomers are carried out in solvent with curatives to induce cross-linking.

Solution blending process for preparing thermoplastic vulcanizates

An adhesive blend is described that can include a semi-crystalline copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and at least one Cto C&#x3b1;-olefin, the copolymer having a weight average molecular weight (Mw) from about 15,000 to about 200,000; an melt index (MI) from about 7 dg/min to about 3000 dg/min as measured by ASTM D 1238 (B), and a (Mw/Mn) of approximately 2. Various production processes are also described. Also described are adhesive compositions and methods for making adhesive compositions having polymers or polymer blends with melt flow rates (MFRS) equal to and above 250 dg/min. at 230&#xb0;C. Certain specific embodiments of the invention involve the use of a free radical initiator, e.g., a peroxide.

Polypropylene-based adhesive compositions

The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.

Plasticized polyolefin compositions

Provided are oil-in-water and water-in-oil emulsion compositions including from 0.01 to 5 wt % of a halogenated elastomer emulsifier, and optionally from to 0.5 wt % of a polyalkylene amine co-emulsifier. The emulsion compositions disclosed herein provide for increased interfacial elasticity and decreased interfacial tension at the oil-water interface to increase resistance to coalescence of dispersed water droplets of a water-in-oil emulsion or oil droplets of an oil-in-water emulsion. The emulsion compositions disclosed herein are suitable for lubricant applications due to their resistance to shear thinning.

Emulsion compositions with a polymeric emulsifier

Provided is a heat-seal resin. The resin includes 5 wt % to 95 wt % of a first copolymer and 95 wt % to 5 wt % of a second copolymer based on the total weight of the resin. The first copolymer and the second copolymer together are 90 wt % or more of the total weight of the resin. The first copolymer includes a first monomer of an alphaolefin of 2 to 4 carbon atoms and a second monomer selected from a second monomer of an alphaolefin of 2 to 8 carbon atoms. The first monomer and the second monomer of the first copolymer are different. The first copolymer has an MFR of from 5 to 1000 g/10 minutes and a Tof 66&#xb0; C. to 80&#xb0; C. The second copolymer includes a first monomer of an alphaolefin of 2 to 4 carbon atoms and a second monomer selected from a second monomer of an alphaolefin of 2 to 8 carbon atoms. The first monomer and the second monomer of the second copolymer are different. The second copolymer has an MFR of from 0.5 to 5 g/10 minutes and a Tof 45&#xb0; C. to 66&#xb0; C., wherein the first copolymer has an MFR of at least 2 g/10 minutes greater and a Tof at least 10&#xb0; C. greater than the second copolymer. There is also a package formed partly or entirely of the resin.

Heat-seal resin and package formed therefrom

The present invention relates to a method to produce highly branched polymers with a polyolefin backbone structure of ethylene and precise control of the nature of the branching. In particular, the distribution of branch length and number of branches can be more precisely controlled via the polymerization method of the present invention. The method comprises using anionic chemistry to make unsaturated polydienes with a well-defined, highly-branched structure, and then hydrogenating these polydienes to form highly branched or dendritic saturated hydrocarbon polymers. Highly branched or dendritic polyethylene, ethylene-propylene copolymer and atactic polypropylene are among the saturated hydrocarbon polymers that can be anionically synthesized via the proper selection of diene monomer type, coupling agent, and hydrogenation conditions.

Synthesis and use of well-defined, highly-branched saturated hydrocarbon polymers

Elastomeric compositions comprising at least one Cto Cmonoolefin elastomer, at least one polyalphaolefin, and optionally at least one hydrocarbon polymer additive are disclosed. The PAO comprises oligomers of one or more Cto Calpha-olefins having a kinematic viscosity at 100&#xb0; C. of 3 to 3000 cSt and a Mw/Mn of less than 4. In one aspect, the elastomeric composition may have improved flex fatigue properties and have a fatigue life of 450,000 Kc or more as measured by ASTM D 412 die C. In another aspect, an elastomeric composition may have improved impermeability and have a permeation coefficient at 40&#xb0; C. of 160 cc*mm/(m&#x2212;day) or less.

Elastomeric compositions having improved properties

Elastomeric compositions comprising graphite nanoparticles (preferably graphene nanoparticles) and methods for making same. Such compositions are useful for tire innertubes and tire innerliners.

Graphite nanocomposites

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Bridgewater, NJ, United States of America

David John Lohse