Dow Global Technolgoies LLC

The Dow Chemical Company

The Texas A&m University System

Michael S Paquette

Shu Chen

Mary Anne Leugers

David A Dunn

Shih-Yaw Lai

Maurice J Marks

Steven P Webb

Thomas D Gregory

Richard F Fibiger

Sam L Crabtree

Hung-Jue Sue

Jose J Longoria

Saeed J Siavoshani

Roger K Pihlaja

Ronald Van Daele

Peter K Mercure

Robert P Haley, Jr

Steven M Lefkowitz

Luyi Sun

Michael Cook

Henry Easter

Peter N Nickias

Scott T Matteucci

Leonardo C Lopez

David H Bank

Jeffrey C Munro

Syamalarao Evani

Mark Alan Barger

Malcolm F Finlayson

Michael D Read

Chai-Jing Chou

Mark D Newsham

Ronald L Yates

Hoang T Pham

Shawn D Feist

Parvinder Singh Walia

Andrew J Strandjord

Robert C Cieslinski

James David Oelberg

John L Sugden

Andreas Mayer

Herbert Bongartz

John Newton

Robert P Dion

Peter C LeBaron

Martin C Beebe

Wanda J Stringfield

Alexander B Morgan

Rudolfo Salmang

Jeff Watkins

James A Hughes

Joyce A Broka

Jae Woong Boo

Brian C Nickless

Woong Jae Boo

Shu Tao Chen

The present invention relates to a continuous-feed furnace assembly and processes for preparing and continuously thermally exfoliating graphite oxide to give a highly exfoliated graphite.

Continuous-feed furnace assembly and processes for preparing and continuously thermally exfoliating graphite oxide

A method for processing a thermoplastic material that comprises a microwave-sensitive polymeric region, wherein the method includes exposing the microwave-sensitive polymeric region to microwaves; wherein the exposing results in an increase in the temperature of the polymeric region; and processing the thermoplastic material is disclosed.

Use of microwave energy to selectively heat thermoplastic polymer systems

The present invention relates to a nitrate salt-based process for preparing a graphite oxide. The invention nitrate salt-based process employs starting materials comprising a sulfuric acid, an inorganic nitrate salt, an amount of water, a first amount of chlorate salt, and a graphite.

Nitrate salt-based process for manufacture of graphite oxide

The present invention relates to a process for preparing a graphite oxide while purging chlorine dioxide. The invention process employs starting materials comprising a sulfuric acid, a nitric acid, a chlorate salt, and a graphite and further employs an inert purge gas.

Process for manufacture of graphite oxide with purge of chlorine dioxide

A two step method for preparing a filler composition, the filler composition useful to prepare a nanocomposite polymer and an epoxy nanocomposite coating. First, disperse a water dispersible filler material in a liquid comprising water, but without any added intercalation agent, to form a dispersion. Second, replace at least a portion of the water of the liquid with an organic solvent so that the water concentration of the liquid is less than six percent by weight to form the filler composition, the average size of at least one dimension of the filler material being less than two hundred nanometers upon examination by transmission electron microscopy of a representative freeze dried sample of the dispersion of the first step. A nanocomposite polymer can be prepared by mixing the filler composition with one or more polymer, polymer component, monomer or prepolymer to produce a polymer containing the filler composition.

Intercalation agent free compositions useful to make nanocomposite polymers

A microwave-sensitive thermoplastic composition that includes a microwave-receptive additive; and a thermoplastic polymer; wherein the microwave-receptive additive is selected from the group consisting of sepiolite clay, molecular sieves formed from ammonium ion salts or hydrogen ion salts, aluminophosphates, silicoaluminophasphates, silicotitanates, organo-modified clays, molecular sieves or zeolites having a caged organic microwave receptive material, and combinations thereof.

Additives for the use of microwave energy to selectively heat thermoplastic polymer systems

The instant invention generally provides polymer pi-bond-philic filler composite comprising a molecularly self-assembling material and a pi-bond-philic filler, and a process of making and an article comprising the polymer pi-bond-philic filler composite. The instant invention also generally provides a process of separating a pi-bond-philic gas from a separable gas mixture comprising the pi-bond-philic gas.

Polymer pi-bond-philic filler composites

A process for preparing oxidized graphite that provides exfoliated graphene, preferably with high surface area. The process uses considerably less chlorate than previously known systems.

Highly efficient process for manufacture of exfoliated graphene

A method for preparing a filler composition useful for preparing a nanocomposite polymer is provided. The method includes a first step of dispersing a water dispersible filler material in a liquid comprising water to form a dispersion and a second step of replacing at least a portion of the water of the liquid with an organic solvent. The resulting filler composition features a water concentration of the liquid of less than six percent by weight, and the average size of at least one dimension of the filler material is less than two hundred nanometers upon examination by transmission electron microscopy of a representative freeze dried sample of the dispersion of the first step. A nanocomposite polymer, particularly and epoxy resin composition, can be prepared by mixing the above-made filler composition with one or more polymer, polymer component, monomer or prepolymer.

The invention relates to polymers derived from macrocyclic oligomers containing organo clay fillers comprising a) a polymer derived from a macrocyclic oligomer; b) clay platelets; and c) the residue of one or more onium compounds having at least one ligand with a Cor greater carbon chain and at least one ligand containing one or more functional groups having one or more active hydrogen atoms wherein the functional group is reactive with the macrocyclic oligomer and/or functional groups formed when the macrocyclic oligomer decyclizes wherein a portion of one or more of the onium compounds is ironically bound to the clay platelet and covalently bonded to the polymers derived from macrocyclic oligomers. The invention also relates to processes for preparing such compositions. Furthermore, the invention relates to articles prepared from organoclay filled polymer compositions.

Polymerized macrocyclic oligomer nanocomposite compositions

A cation exchanging layered material having a cation exchange capacity satisfied by ion-exchangeable organic and inorganic cations, the ion-exchangeable organic cation content of the betastructured cation exchanging layered material being in the range of from ten to ninety-five percent of the cation exchange capacity of the cation exchanging layered material. The structure of the material is unique and is defined as a 'betastructure'. A nanocomposite polymer incorporating such a 'betastructured' cation exchanging layered material with a polymer.

Betastructured mixed organic and inorganic cation exchanged layered materials and nanocomposites

A sensor and a method for using the sensor to determine the concentration or partial pressure of oxygen in a fluid media is provided. The sensor includes a light modifying medium containing a luminescent dye which is accessible to oxygen. The luminescent dye contains a hexanuclear core of molybdenum, tungsten or mixtures thereof having 14 coordination sites, wherein each site is occupied by a ligand. The sensor also includes an apparatus capable of transmitting and collecting light to and from the light modifying medium.

Apparatus and method for measuring the concentration or partial pressure

A reactor for carbothermal reduction is disclosed. By supplying gaseous nitrogen throughout a discrete aliquot of a preferably pelletized mixture of aluminum oxide, carbon and, optionally, calcium oxide during the carbothermal reduction thereof to aluminum nitride and continuously removing gaseous reaction products therefrom, a high quality aluminum nitride is produced. One means of supplying gaseous nitrogen to the mixture of solid reactants is a perforated tray having a hollowed-out bottom. Gaseous nitrogen supplied to the hollowed-out portion flows through the perforations and throughout solid reactants contained in the tray. The carbon may be alternatively supplied, in whole or in part, as a gaseous reactant.

Continuous carbothermal reactor

A method is disclosed for purifying aluminum nitride produced by carbothermal reaction of aluminum oxide, carbon and nitrogen. Precursor pellets including aluminum oxide and carbon are exposed to nitrogen under conditions sufficient to carbothermally produce aluminum oxide, thereby producing aluminum nitride pellets having surface portions relatively rich in thermal conductivity-lowering and color-causing impurities compared to core portions of the aluminum nitride pellets. Significant amounts of the surface portions are thereafter removed to thereby significantly increase the purity of the aluminum nitride pellets.

Purification of carbothermally produced aluminum nitride

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Midland, MI, United States of America

Michael S Paquette