The Dow Chemical Company

Dow Global Technolgoies LLC

Union Carbide Chemicals & Plastics Technology Corporation

Styron Europe Gmbh

Zenon Lysenko

William J Harris

Alan K Schrock

David A Babb

Richard G Pews

Suh Joon Han

Jerry E White

Duane R Romer

Aaron W Sanders

Jerzy Klosin

William Jack Kruper, Jr

Clark H Cummins

Cynthia L Rand

Christopher P Christenson

Marvin L Dettloff

Joe D Phillips

Bob R Maughon

Dirk B Zinkweg

Eric E Bancroft

Carl W Hurtig

James H Gilchrist

H Ray Jouett

Jimmy D Earls

Bruce Bell

Daniel J Arriola

William Gerald Stobby

Leonardo C Lopez

Jeffrey Scott Kanel

Jozef Bicerano

Michael E Mills

Brad C Bailey

James P Godschalx

Donald L Bunning

Kenneth A Burdett

Chau Van Vo

Mark T Bernius

Brian Michael Roesch

Pulikkottil Jacob Thomas

Donald Lee Morrison

Steven Rosenberg

Wei-Jun Peng

George J Frycek

John Gordon-Duffy

Kurt D Olson

Inken Beulich

Christopher W Derstine

John Tsavalas

Bryan E Barton

Eric J Hukkanen

David R Arrowsmith

Fabio Aguirre

R Garth Pews

Ritchie A Wessling

Mark F Sonnenschein

Jasson T Patton

John Michael Maher

Martin R Greaves

Francois M Casati

Debkumar Bhattacharjee

Gary E Spilman

Wanglin Yu

Paul Joseph Popa

Gordon R Roof

Paul C Vosejpka

John Wesley Hull, Jr

Sudhakar Balijepalli

William Aaron Koonce

George J Quarderer, Jr

Larry DeLynn Chambers

Timothy Charles Frank

Robert A Devries

Paul R Elowe

Paul H Townsend, Iii

Thomas D Gregory

Richard F Fibiger

Ying Hung So

Hanno R Van Der Wal

Wen-Fang Hwang

Ming-Biann Liu

Gary R Buske

Shawn D Feist

Kenneth J Stutts

Steven J Martin

P J Thomas

James A Rabon, Jr

Richard Dicran Varjian

David Schrader

Xiaoyun Chen

Amaia Montoya-Goni

Dennis W Smith, Jr

Ramki Subramanian

Christina A Rhoton

Philippe Martin Knaub

Luke R Kleiss

Bruce W Pynnonen

John D Duffy

David E Schiff

Charles Keillor

Robbyn Prange

Min Zhang

Processes to prepare branched polyolefins for lubricant applications comprise combining at least one olefin and a coordination-insertion catalyst under conditions such that at least one oligomer product is formed. Low molecular weight by-products are fractionated out and the oligomer product is converted to a saturated hydrocarbon via hydrogenation.

Process for the preparation of branched polyolefins for lubricant applications

A dielectric fluid composition for electrical apparatus comprises a functionalized 12-hydroxy stearic acid having desirable properties including a pour point less than &#x2212;30&#xb0; C. and a fire point greater than 250&#xb0; C. It may be prepared by a process wherein 12-hydroxy methyl stearate is transesterified by reaction with a C3-C20 alcohol to form an alkyl-12-hydroxy stearate, followed by esterification thereof with a linear or branched C4-C20 carboxylic acid. This acid may be a free acid chloride, a fatty acid, a carboxylic acid anhydride, or combination thereof. The resulting functionalized 12-hydroxy stearic acid exhibits improved thermoxidative capability, low temperature flowability, and increased fire point.

Dielectric fluid compositions for enhanced thermal management

A process to prepare a relatively inexpensive utility fluid comprises contacting together ethylene and a coordination-insertion catalyst and, optionally, an alpha-olefin, in a continuously-fed backmixed reactor zone under conditions such that a mixture of a hyperbranched oligomer and a branched oligomer is formed. The hyperbranched oligomer has an average of at least 1.5 methine carbons per oligomer molecule, and at least 40 methine carbons per one-thousand total carbons, and at least 40 percent of the methine carbons is derived from the ethylene, and the average number of carbons per molecule is from 25 to 100, and at least 25 percent of the hyperbranched oligomer molecules has a vinyl group and can be separated from the branched oligomer, which has an average number of carbons per molecule of up to 20. The coordination-insertion catalyst is characterized as having an ethylene/octene reactivity ratio up to 20 and a kinetic chain length up to 20 monomer units.

Hyperbranched ethylene-based oils and greases

The present invention generally relates to a dielectric composition which is a poly-&#x3b1;-olefin or poly(co-ethylene-&#x3b1;-olefin) having a backbone weight average molecular weight less than 10,000 daltons. The dielectric composition uses a metal-ligand complex as a precatalyst and exhibits a hyperbranched structure that enables low viscosity, and therefore good flow characteristics, combined with high fire point due to ability to increase molecular weight via branching rather than backbone growth. Other desirable properties include lowered pour point due to crystallization disruption, and desirable thermal oxidative stability.

Hyperbranched olefin oil-based dielectric fluid

A dielectric fluid composition for electrical apparatus comprises a functionalized methyl-12-carboxy methyl stearate having desirable properties including a pour point less than &#x2212;30&#xb0; C. and a fire point greater than 250&#xb0; C. It may be prepared by a process wherein methyl-12-hydroxy methyl stearate is transesterified by reaction with a C3-C20 alcohol to form the hydroxy methyl ester, followed by reaction with a linear or branched C4-C20 carboxylic acid selected from free acid chlorides, fatty acids, carboxylic acid anhydrides, and combinations thereof. The second step serves to end-cap the hydroxyl groups, thereby producing the functionalized methyl-12-carboxy methyl stearate compound that exhibits improved thermoxidative stability and low temperature flowability, as well as increased fire point.

Synthetic ester-based dielectric fluid compositions for enhanced thermal management

Disclosed herein are processes for preparing carbonized polymers, such as carbon fibers, comprising: sulfonating a polymer with a sulfonating agent that comprises SOgas to form a sulfonated polymer; treating the sulfonated polymer with a heated solvent, wherein the temperature of said solvent is at least 95&#xb0; C.; and carbonizing the resulting product by heating it to a temperature of 500-3000&#xb0; C.

Processes for preparing carbon fibers using gaseous sulfur trioxide

Disclosed here are processes for preparing carbonized polymers (preferably carbon fibers), comprising sulfonating a polymer with a sulfonating agent that comprises SOdissolved in a solvent to form a sulfonated polymer; treating the sulfonated polymer with a heated solvent, wherein the temperature of the solvent is at least 95&#xb0; C.; and carbonizing the resulting product by heating it to a temperature of 500-3000&#xb0; C. Carbon fibers made according to these methods are also disclosed herein.

Processes for preparing carbon fibers using sulfur trioxide in a halogenated solvent

Effect separation of a composition of matter that includes at least two seed or plant oil derivatives into at least one desired product stream using at least two separation operations, which are independently selected from among several potential separation operations, in conjunction with at least one recycle stream from a separation operation.

Purification of hydroformylated and hydrogenated fatty alkyl ester compositions

Extruded polymer foams are prepared using brominated fatty acids, an ester, amide or ester-amide of a brominated fatty acid, a glyceride of one or more brominated fatty acids, or a polymerized brominated fatty acid as an FR additive. The brominated FR additives unexpectedly are stable at the extrusion temperatures, and provide excellent flame retardancy to the foams.

Extruded polymer foams containing brominated fatty acid-based flame retardant additives

A polyester polyol, referred to hereinafter as a MHMS polyol comprises fatty acid based mer units wherein at least about 80 weight percent of the fatty acid based mer units are from methyl 9 (10) hydroxymethylstearate, or is prepared from an oil having fatty acids or fatty acid esters which are at least about 80 weight percent oleic acid or esters thereof and which has an average hydroxyl functionality of from 1.5 to 4. A reaction product, referred to herein after as MHMS alkoxysilane prepolymer, is produced from at least one such MHMS polyol and at least one isocyanate functional silane. This prepolymer is moisture cured to form a silylated MHMS polymer.

Room temperature curable polymers and precursors thereof

Flexible polyurethane foams are prepared by reacting a polyisocyanate with a high equivalent weight polyol. At least a portion of the high equivalent weight polyol is a polyester containing hydroxymethyl groups. The polyester is prepared in a multi-step process from animal or vegetable fats, by recovering the constitutent fatty acids, hydroformylating carbon-carbon double bonds in the fatty acids and reducing to form hydroxymethyl groups, and then forming a polyester by reaction with an initiator compound.

Polyurethane foams made from hydroxymethyl-containing polyester polyols

An aldehyde composition derived by hydroformylation of a transesterified seed oil and containing a mixture of formyl-substituted fatty acids or fatty acid esters having the following composition by weight: greater than about 10 to less than about 95 percent monoformyl, greater than about 1 to less than about 65 percent diformyl, and greater than about 0.1 to less than about 10 percent triformyl-substituted fatty acids or fatty acid esters, and having a diformyl to triformyl weight ratio of greater than about 5/1; preferably, greater than about 3 to less than about 20 percent saturates; and preferably, greater than about 1 to less than about 20 percent unsaturates.

Aldehyde compositions derived from seed oils

Polyols useful in the manufacture of polyurethanes are disclosed. The polyols are prepared by reacting a vegetable oil based (hydroxymethyl containing) monomer with a polyol, polyamine or aminoalcohol under vacuum.

Vegetable oil based polyols and polyurethanes made therefrom

Growing community of inventors

Midland, MI, United States of America

Zenon Lysenko