Dow Global Technolgoies LLC

The Dow Chemical Company

Dow Silicones Corporation

John B Cuthbert

David L Malotky

Bruce D Hook

Nathan Wilmot

Daniel Lawrence Dermody

Gary R Buske

Daniel A Aguilar

Stacey A Saba

Walter F Seifert

Zhe Jia

Stephen W King

Nanguo Liu

Wanglin Yu

Felipe A Donate

Abel Mendoza

Yang Cheng

Paul R Elowe

Brian A Jazdzewski

Xiaoyuan Zhou

Eric E Joffre

Ashish Kotnis

Cynthia Pierre

Ashwin R Bharadwaj

Lindsey A Clark

Mike Ferritto

Christoph L Lang

Linda Yi-Ping Zhu

Ellen D Hock

Yi-Ping Zhu

Christoph Lang

Matthew W Entorf

Ashish V Kotnis

A branched polysiloxane compound and methods for its preparation are disclosed. The branched polysiloxane compound may be used as a heat transfer fluid.

Branched polysiloxanes and methods for their preparation and use as heat transfer fluids

A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials.

Method of making a grease thickener and the thickener made by the method

A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocyanate in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials.

Certain glycol ether diesters have improved lubrication properties.

Low VOC lubricant compositions

Provided are compositions and their use as dispersant and/or detergent additives for lubricants. The compositions comprise an amine alkoxylate of the formula I: (I) wherein R-R, R'-R; x, x&#x2032;, A, A&#x2032; and A&#x2033; are as defined herein. 

Amine alkoxylate compositions and their use as lubricant additives

A process and an apparatus () for producing a superheated working fluid from a concentrating solar plant. More specifically, the process and apparatus produce superheated steam. The apparatus is designed such that it can use more than one heat transfer medium to produce the superheated working fluid. A first heat exchanger system () is designed to use the heat of a first heat transfer medium in order to preheat, evaporate and superheat a working fluid in a power generating working cycle (). A second heat exchanger system () is designed to use the heat of a second heat transfer medium to superheat the working fluid in cycle ().

Process for producing superheated steam from a concentrating solar power plant

The cutting of semiconducting crystals with a wire saw is facilitated with a cutting fluid comprising a polyalkylene glycol neutralized with an un-neutralized or partially neutralized polymeric acid that has a molecular weight of 500 to 1,000,000 and contains more than three acid groups per molecule.

Cutting fluids with improved performance

A high temperature heat transfer fluid is disclosed which comprises a mixture of 1,2,3,4-tetrahydro(1-phenylethyl)naphthalene and dibenzyl toluene to provide high temperature heat transfer fluids exhibiting favorable thermal stability.

Thermal fluid blends containing 1,2,3,4-tetrahydro(1-phenylethyl)naphthalene

Water and organic low-boiling constituents in organic heat transfer fluids used to heat commercial processes are removed by introducing a gas such as nitrogen into a turbulent flow of the heat transfer fluid and separating gas which then contains low-boiling constituents from the heat transfer fluid of the heat transfer system. The gas containing low-boiling constituents may be sent to a condenser to return heat transfer fluid which also vaporizes into the gas, but to a lesser extent than the low-boilers, to the heat transfer system. The gas containing low-boiling constituents is then combusted.

Removal of low-boiling fractions from high temperature heat transfer

Water and organic low-boiling constituents in a organic heat transfer fluids used to heat commercial processes are removed by counter current stripping the fluid with a gas such as nitrogen. The gas containing low-boiling constituents is sent to a rectification column and condenser to return heat transfer fluid which also vaporizes into the gas, but to a lesser extent than the low-boilers, to the heat transfer system.

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Midland, MI, United States of America

John B Cuthbert