Exxonmobil Chemical Patents Inc.

Exxon Chemical Patents, Inc.

Hoechst Gmbh

Toray Tonen Specialty Separator Godo Kaisha

Tonen Chemical Corporation

Toray Battery Separator Film Co., Ltd.

Exxon Mobil Chemical, Inc.

Hoechst Aktiengesellschaft

Jeffrey Lawrence Brinen

Patrick Brant

Anthony Nicholas Speca

Zerong Lin

Koichi Kono

Hiroyuki Ozaki

Kohtaro Kimishima

Keith Holroyd Kuechler

Philip Andrew Ruziska

Kelly Tormaschy

Kathryn Ann Russell

James Richardson Lattner

Cor F Van Egmond

Russell John Koveal

James John Mcalpin

Charles C Cozewith

Terry John Burkhardt

Maria Dolores Ellul

Lubin Luo

Michael Peter Nicoletti

Christopher Garland Bauch

John Richard Shutt

George Alan Vaughan

George James Pehlert

James J McAlpin

Eugene Ronald Uhl

Todd S Edwards

Kotaro Kimishima

Allen Scott Gawlik

Daniel L Bilbao

Carlos U De Gracia

Xiaodan Zhang

Sung A Kim

Henry Dong

Philip A Ruziska

Provided herein are methods of polymerizing α-olefin monomer with a catalyst and hydrogen in a slurry to produce low molecular weight polyolefins. Hydrogen is vented from the low molecular weight polyolefins and then the low molecular weight polyolefins are further polymerized in a gas phase to produce a polyolefin having a molecular weight distribution of between 4.0 and 30 and a flexural modulus between 1500 mPa and 2500 mPa.

Processes for producing polyolefins and impact copolymers with broad molecular weight distribution and high stiffness

This invention relates to a copolymer prepared using two or more non-coordinating anion activators comprising a first C2 to C12 alpha olefin (such as ethylene), a second C3 to C12 alpha olefin (such as propylene) different from the first alpha olefin, and diene (such as ethylidene norbornene and/or vinyl norbornene), where the polymer has: a) first alpha olefin (ethylene) content of 35 to 90 mol %; b) second alpha olefin (propylene) content of 9.8 to 64.8 mol %; c) diene content of 0.2 to 5 mol %; d) a branching index g'ave of 0.95 or more; e) a complex viscosity ratio (eta*(0.01 rad/s)/eta*(100 rad/s), at 125&#xb0; C.) greater than 1.1*Y, where Y=Y+{[(Y&#x2212;Y)/(X&#x2212;X)](X&#x2212;X)}, where Xis the wt % of a first non-coordinating anion activator, NCA, used to prepare the copolymer (based upon weight of NCAand a second non-coordinating anion activator, NCA, used to prepare the copolymer), X=0, X=100, Y=complex viscosity ratio of polymer made with 100% NCAand 0% NCA, Yis complex viscosity ratio of polymer made with 100% NCAand 0% NCA, where NCAhas an Mw lower than the Mw of NCA; f) an Mw/Mn of 4.0 or less; g) a melting point of 30&#xb0; C. or less; and h) a Composition Distribution Breadth Index of 50% or more.

Process to produce ethylene propylene copolymers

A thermoplastic vulcanizate comprising a dynamically cured rubber, where the rubber is peroxide cured, and a thermoplastic phase, where at least 10% by weight of the thermoplastic phase includes an ultrahigh molecular weight plastic, where the ultrahigh molecular weight plastic is characterized by a Mthat is greater than 0.8&#xd7;10g/mole.

Peroxide-cured thermoplastic vulcanizates prepared with ultrahigh molecular weight plastics

The invention relates to a multi-layer, microporous membrane having appropriate permeability, pin puncture strength, shutdown temperature, shutdown speed, meltdown temperature, and thickness uniformity. The invention also relates to a battery separator formed by such multi-layer, microporous membrane, and a battery comprising such a separator. Another aspect of the invention relates to a method for making the multi-layer, microporous polyolefin membrane, a method for making a battery using such a membrane as a separator, and a method for using such a battery.

Multi-layer, microporous membrane, battery separator and battery

The invention relates to a multi-layer, microporous polyolefin membrane having appropriate permeability, pin puncture strength, shutdown temperature, shutdown speed, meltdown temperature, and thickness uniformity. The invention also relates to a battery separator formed by such multi-layer, microporous membrane, and a battery comprising such a separator. Another aspect of the invention relates to a method for making the multi-layer, microporous polyolefin membrane, a method for making a battery using such a membrane as a separator, and a method for using such a battery.

Disclosed herein is a polymer composition, its manufacture and use, said composition may comprise greater than about 90 mole % propylene monomer, and having a unique combination of properties, including one or more of the following: a heat of fusion of more than about 108 J/g, a melting point of 165&#xb0; C. or higher, a Melt Flow Rate so low that it is essentially not measurable and a molecular weight of greater than about 1.5&#xd7;10. Further disclosed herein are blends or mixtures of the present novel polymer composition and products, such as, for example, microporous film structures and the like comprising same.

Polymeric material and its manufacture and use

Disclosed herein is multi-layer, microporous polyolefin membrane comprising a first porous layer comprising primarily a polyethylene, and a second porous layer comprising a polyethylene resin and polypropylene, the polypropylene having a weight-average molecular weight of 6&#xd7;10or more and a heat of fusion (measured by a differential scanning calorimeter) of 90 J/g or more, a fraction of the polypropylene having a molecular weight of 5&#xd7;10or less being 5% or less by mass.

Microporous membrane, battery separator and battery

Disclosed herein is a multi-layer, microporous polyolefin membrane comprising a first porous layer of a polyethylene, and a second porous layer comprising a polyethylene, and polypropylene having a weight-average molecular weight of 6&#xd7;10or more and a fraction having a molecular weight of 1.8&#xd7;10or more being 10% or more by mass.

A process is described for producing olefins from a vapor product stream from an oxygenate to olefin conversion reaction, the vapor product stream comprising Cto Colefins, C+ hydrocarbons, at least one oxygenate and water. In the process, the vapor product stream is cooled to remove water therefrom and produce a first vapor effluent stream. The first vapor effluent stream is then cooled and compressed to produce a condensed liquid effluent stream comprising C+ hydrocarbons and at least one oxygenate, and a residual vapor effluent stream comprising Cto Colefins. At least part of the condensed liquid effluent stream is contacted with a liquid water-containing stream in a liquid-liquid contacting device to at least partly separate said condensed liquid effluent stream, or portion thereof, into an aqueous phase rich in said at least one oxygenate and an organic phase rich in said C+ hydrocarbons.

Process for producing olefins

The present invention provides various processes for producing polypropylene from an oxygenate-contaminated propylene-containing feedstock, preferably derived from an oxygenate to olefin reaction system. In one embodiment, the process includes providing a propylene-containing stream from an oxygenate to olefin reaction system, wherein the propylene-containing stream comprises propylene and an oxygenate. The propylene in the propylene-containing stream contacts a polymerization catalyst in a polymerization zone under conditions effective to polymerize the propylene to form the polypropylene.

Processes for forming polypropylene from an oxygenate-contaminated monomer feedstock

A process is described for producing an olefins stream from a first vapor effluent stream from an oxygenate to olefin conversion reaction, said first vapor effluent stream comprising Cand Colefins, Chydrocarbons, and Cto Ccarbonyl compounds. In the process, the temperature and pressure of the first vapor effluent stream are adjusted to produce a second vapor effluent stream having a pressure ranging from about 100 psig to about 350 psig (790 to 2514 kPa) and a temperature ranging from about 70&#xb0; F. to about 120&#xb0; F. (21 to 49&#xb0; C.), said second vapor effluent stream containing about 50 wt. % or more Chydrocarbons based upon the total weight of Chydrocarbons in the first vapor effluent stream. The second vapor effluent stream is then washed with a liquid alcohol-containing stream to produce a third vapor effluent stream, whereafter the third vapor effluent stream is washed with liquid water to provide a fourth vapor effluent stream comprising the Cand Colefins and about 1.0 wt. % or less Cto Ccarbonyl compounds.

A process and apparatus are provided for converting oxygenate to olefins which comprises: contacting a feedstock comprising oxygenate with a catalyst comprising a molecular sieve under conditions effective to produce a vaporous product comprising the olefins, water and unreacted oxygenate; condensing the vaporous product to provide a liquid stream rich in the water and unreacted oxygenate, and an olefins-rich vapor stream; introducing at least part of the liquid stream to a feed tray in a fractionation tower which provides an oxygenate-rich overhead product and a water-rich liquid bottoms product; providing a liquid, oxygenate-rich stream comprising at least about 20 wt % oxygenate above the feed tray; and passing the olefins-rich vapor stream through a recovery train to recover at least some of the olefins.

Recycling oxygenate-rich streams in oxygenate-to-olefin processes

A process for producing olefins comprises providing a vapor product stream from an oxygenate to olefin reaction, the vapor product stream comprising Cto Colefins, Cto Ccarbonyl compounds and water. The vapor product stream is cooled to provide a first vapor effluent stream comprising no more than 10 wt. % water, and a liquid water-rich stream. The first vapor effluent stream, and a first wash flash vapor stream, are compressed from a first pressure to a second pressure greater than said first pressure to form a second vapor effluent stream, which is then cooled to form a cooled second effluent stream that is at least partially in the vapor state. At least part of the cooled second effluent stream is washed with a liquid alcohol-containing stream, at a third pressure greater than the first pressure but not greater than the second pressure, to produce a wash liquid stream, which comprises Cand Colefins, and a wash vapor stream, which contains less Cto Ccarbonyl compounds than the first vapor effluent stream. The wash liquid stream is exposed to a pressure of at least the first pressure but less than the third pressure to form a first wash flash liquid stream and the first wash flash vapor stream, the first wash flash vapor stream being provided for compression with the first vapor effluent stream.

Growing community of inventors

League City, TX, United States of America

Jeffrey Lawrence Brinen