Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

Exxon Research and Engineering Company

Fuelcell Energy, Inc.

Exxonmobil Technology and Engineering Company

Exxonmobil Engineering & Technology Company

Exxon Chemical Patents, Inc.

Exxon Mobil Chemical, Inc.

Gabor Kiss

Robert Patrick Reynolds, Jr

John W Chu

Patrick Brant

James Richardson Lattner

Frank Hershkowitz

Manika Varma-Nair

Thomas Elmer Green

Peijun Jiang

Harry William Deckman

Andy Haishung Tsou

Tan-Jen Chen

Aspy Keki Mehta

Michael Gerard Matturro

Alan Anthony Galuska

Abdelkader Hilmi

Steven Paul Rucker

Robert P Reynolds

Timothy C Geary

Edward John Blok

Allen David Godwin

Raymond A Cook

William Anthony Lamberti

Heather A Elsen

Jonathan Rosen

William C Horn

Keith Holroyd Kuechler

Kun Wang

Terry Eugene Helton

Anthony Jay Dias

Jay L Reimers

Chao-yi Yuh

Kevin Wayne Lawson

Istvan T Horvath

Thomas T Sun

Roberto Garcia

Gary L Casty

Stuart Leon Soled

Abhimanyu Onkar Patil

Jo Ann M Canich

Richard Henry Schlosberg

Sabato Miseo

Christopher Lynn Becker

Stephen Zushma

Edmund John Mozeleski

Rainer Kolb

Jon E Stanat

David John Lohse

Ramzi Yanni Saleh

Timothy Andrew Barckholtz

Karla Schall Colle

Joseph Ernest Baumgartner

Kirk C Nadler

Anthony M Dean

John Zengel

Philippe Louis Buess

Richard C Miller

Carl A Willman

Paul T Q Nguyen

Jihad Mohammed Dakka

Sudhin Datta

James C Vartuli

Donna Jean Crowther

John Robert Hagadorn

Pradeep P Shirodkar

Gary David Mohr

Rocco A Fiato

Alexander Z Voskoboynikov

Francis Charles Rix

Teh Chung Ho

Charles Morris Smith

Francisco Manuel Benitez

Andrzej Malek

Jean-Roch H Schauder

Hari Nair

Bryan Robert Chapman

Shuji Luo

Thomas M Smith

Rhutesh K Shah

Christine Esther Kliewer

Hossein Ghezel-Ayagh

David Ritchie Lumgair

Sarah J Mattler

Lu Han

Lawrence J Novacco

Keith E Davis

Jennifer Schaefer Feeley

Alexander I Norman

Jason A Mann

Florin Barsan

David C Long

Johannes Matthieu Soulages

Robert C Portnoy

David B Dunaway

Gary F Janda

Rodrigo F Blanco Gutierrez

Travis A Reine

Guy Joseph Wouters

Donald Andrew Winesett

Abdul M Jangda

Cathode collector structures and/or corresponding cathode structures are provided that can allow for improved operation for a molten carbonate fuel cell when operated under conditions for elevated COutilization. A cathode collector structure that provides an increased open area at the cathode surface can reduce or minimize the amount of alternative ion transport that occurs within the fuel cell. Additionally or alternately, grooves in the cathode surface can be used to increase the open area.

Cathode collector structures for molten carbonate fuel cell

This invention relates to a polymerization process for forming polymer comprising: contacting (typically in a solution or slurry phase), a monomer and a catalyst system in a reaction zone comprising at least one spiral heat exchanger and recovering polymer, wherein the monomer, the catalyst system and the polymer flow through the at least one spiral heat exchanger in a cross-flow direction relative to spirals of the at least one spiral heat exchanger.

Polymerization using a spiral heat exchanger

Elastomeric compositions comprising propylene-ethylene-diene terpolymer based polyolefin additives useful in tire tread compositions. The elastomeric compositions comprise 100 phr (parts by weight per hundred parts of total elastomer) diene elastomers; about 0 to about 80 phr of processing oil; 0 to about 80 phr of a hydrocarbon resin; about 60 to about 140 phr of filler; a curative agent; and about 5 to about 30 phr of a silane functionalized propylene-ethylene-diene terpolymer. The silane functionalized propylene-ethylene-diene terpolymer comprises from about 2 wt. % to about 40 wt. % of ethylene and/or C-Cα-olefins derived units, from 0.5 to 10 wt % of diene derived units, and a silane coupling agent. The present elastomeric compositions are useful as tire tread compositions for improved tire performance.

Propylene ethylene diene terpolymer polyolefin additives for improved tire tread performance

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 70 to about 90 phr of polybutadiene having a cis-1,4 linkage content of at least 95%; about 5 to 20 phr of a processing oil; about 5 to about 20 of sunflower oil; about 50 to about 75 phr of a filler; a curative agent; an antioxidant; and about 5 to about 30 phr of a propylene-ethylene-diene terpolymer containing from about 0.2 wt % to about 20 wt % ethylidene norbornene and/or vinyl norbornene and about 10 wt % to about 30 wt % of ethylene and/or C-Cα-olefins derived units.

Propylene-based polymer additives for improved tire tread performance

An elastomeric composition is disclosed. The elastomeric composition includes, per 100 parts by weight of rubber (phr): about 0 to about 25 phr of poly butadiene having a cis-1,4 linkage content of at least 95%; about 75 to 100 phr of a styrene/butadiene copolymer; about 10 to about 30 phr of a processing oil; about 50 to about 70 phr of a filler; a curative agent; an antioxidant; a silane coupling agent; and about 5 to about 30 phr of a propylene-ethylene-diene terpolymer.

Molten carbonate fuel cells (MCFCs) are operated to provide enhanced COutilization. This can increase the effective amount of carbonate ion transport that is achieved. The enhanced COutilization is enabled in part by operating an MCFC under conditions that cause transport of alternative ions across the electrolyte. The amount of alternative ion transport that occurs during enhanced COutilization can be mitigated by using a more acidic electrolyte.

Operation of molten carbonate fuel cells with enhanced COutilization

An elevated target amount of electrolyte is used to initially fill a molten carbonate fuel cell that is operated under carbon capture conditions. The increased target electrolyte fill level can be achieved in part by adding additional electrolyte to the cathode collector prior to start of operation. The increased target electrolyte fill level can provide improved fuel cell performance and lifetime when operating a molten carbonate fuel cell at high current density with a low-COcontent cathode input stream and/or when operating a molten carbonate fuel cell at high COutilization.

Operation of molten carbonate fuel cells with high electrolyte fill level

A layered cathode structure for a molten carbonate fuel cell is provided, along with methods of forming a layered cathode and operating a fuel cell including a layered cathode. The layered cathode can include at least a first cathode layer and a second cathode layer. The first cathode layer can correspond to a layer that is adjacent to the molten carbonate electrolyte during operation, while the second cathode layer can correspond to a layer that is adjacent to the cathode collector of the fuel cell. The first cathode layer can be formed by sintering a layer that includes a conventional precursor material for forming a cathode, such as nickel particles. The second cathode layer can be formed by sintering a layer that includes a mixture of particles of a conventional precursor material and 1.0 vol % to 30 vol % of particles of a lithium pore-forming compound. The resulting layered cathode structure can have an increased pore size adjacent to the cathode collector to facilitate diffusion of COinto the electrolyte interface, while also having a smaller pore size adjacent to the electrolyte to allow for improved electrical contact and/or reduced polarization at the interface between the electrolyte and the cathode.

Layered cathode for molten carbonate fuel cell

A continuous process for preparing an ethylene-based polyolefin, the process comprising maintaining a polymerization mixture at a temperature at or above the lower critical phase separation temperature of the polymerization mixture, while, during said step of maintaining, maintaining the polymerization mixture at steady state, where the polymerization mixture is substantially uniform in temperature, pressure, and concentration, where the polymerization mixture includes solvent, monomer including ethylene and optionally monomer copolymerizable with ethylene, a single-site catalyst system, and polymer resulting from the polymerization of the monomer, where the monomer and the polymer are dissolved in the solvent, and where the polymer is an ethylene-based polyolefin having a molecular weight distribution (Mw/Mn) of less than 2.30.

Biphasic polymerization processes and ethylene-based polyolefins therefrom

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 is a composition having 60 wt % to 95 wt % of a first propylene alpha-olefin copolymer component having a reactivity ratio product of less than 0.75 and a weight average molecular weight of greater than about 450,000 g/mol; and 5 wt % to 40 wt % of a second propylene alpha-olefin copolymer component having a reactivity ratio of greater than 1.5 and a weight average molecular weight of less than about 215,000 g/mol.

Propylene-alpha olefin copolymers and methods for making the same

A propylene-ethylene-diene terpolymer and method of making such comprising from 2% to 25% wt % by weight of ethylene, from 98% to 75% wt % by weight propylene and from 1% to 21% wt % by weight of a diene, wherein the terpolymer has a crystallinity of less than 3%, a melt flow rate (MFR) of less than 10 and a Tg by DSC of from &#x2212;2&#xb0; C. to &#x2212;25&#xb0; C. and methods to prepare the terpolymer are depicted.

Low ethylene amorphous propylene-ethylene-diene terpolymer compositions

This invention relates to a continuous homogeneous solution phase polymerization process comprising contacting, in an evaporative reactor system at a temperature of 50&#xb0; C. or more and a pressure of 100 kPa or more, a catalyst system, optionally, a hydrocarbon diluent, optionally, scavenger, and one or more monomer(s) to form a homogeneous polymerization medium, where the polymer product is dissolved in the reaction medium at 10 wt % or more (based upon the weight of the polymer present in the effluent at the exit of the reactor) and the catalyst system is dissolved in the reaction medium, and where the catalyst system comprises an activator and a coordination catalyst precursor compound and where all or part of the polymerization medium is evaporated during the polymerization.

Homogeneous polymerization process using evaporative cooling

Growing community of inventors

Hampton, NJ, United States of America

Gabor Kiss