Dow Global Technolgoies LLC

Daniel A Aguilar

Wanglin Yu

Stephen W King

Christophe R Laroche

John B Cuthbert

Fang Li

Linda Yi-Ping Zhu

Debkumar Bhattacharjee

William Hoy Heath

William Aaron Koonce

Paul R Elowe

Brian A Jazdzewski

Amber Marie Stephenson

Ling Zhang

Cynthia Pierre

Adam C Colson

Shawn J Maynard

Ashwin R Bharadwaj

Shouren Ge

David Bradley Wurm

Yi-Ping Zhu

Brad Wurm

Dan Yu

Basudeb Saha

A cured composition including a reaction product of a mixture that includes an isocyanate component having one or more isocyanates and an isocyanate-reactive component having a butylene oxide based polyol, which has a number average molecular weight greater than 2,000 g/mol and less than 8,000 g/mol and a nominal hydroxyl functionality from (2) to (4). At least (50) wt % of a total weight of alkylene oxides used to form the butylene oxide based polyol is butylene oxide. An isocyanate index of the mixture is from (90) to (150). The cured composition in a cured state exhibits a first tan delta peak between a first temperature range of 50&#xb0; C. to 0&#xb0; C. and a second tan delta peak between a second temperature range of 75&#xb0; C. and 150&#xb0; C., according to a tan delta plot over a range of temperatures, and a value of the first tan delta peak and a value of the second tan delta peak each represents a ratio of a loss modulus of the cured composition and a storage modulus of the cured composition at a specific temperature within the range of temperatures, as measured according to dynamic mechanical thermal analysis. The values of the first and the second tan delta peaks are from (0.10) to (0.90).

High molecular weight hydrophobic polyol

Cutting fluids for brittle materials, e.g., silicon ingot, comprise, in weight percent:

Polyalkylene glycol-grafted polycarboxylate suspension and dispersing agent for cutting fluids and slurries

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

Cutting fluids for brittle materials, e.g., silicon ingot, comprise, in weight percent: A. 70-99% polyalkylene glycol (PAG), e.g., polyethylene glycol; B. 0.01-10% PAG-grafted polycarboxylate; and C. 0-30% water. These cutting fluids are used with abrasive materials, e.g., silicon carbide (SiC), to form cutting slurries. The slurry is sprayed on the cutting tool, e.g., a wire saw, to cut a brittle work piece, e.g., a silicon ingot.

The present invention relates to an improved process for making mono- and di-alkoxylated piperazine compounds especially dihydroxyethylpiperazine. The improvement comprises the addition of an acid to the piperazine compound prior to the addition of an alkylene oxide to a reactor wherein the alkoxylated piperazine compound is prepared. Said improvement reduces the concentration of undesirable glycol ether byproducts which contribute undesirable color and foaming of the alkoxylated piperazine compounds.

Process for making alkoxylated piperazine compounds

An improved process for making ethoxylated amine compounds such as ethanolamines. The improvement comprises the addition of an acid to the amine compound prior to the addition of ethylene oxide to a reactor wherein the ethoxylated amine compound is prepared. The improvement reduces the concentration of undesirable glycol ether and/or vinyl ether ethoxylate byproducts which may contribute to undesirable properties, such as color and foaming, of the ethoxylated amine compounds.

Process for making ethoxylated amine compounds

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

Embodiments of the invention provide for a method of producing a silylated polyoxyalkylene polymer having at least one crosslinkable silyl group and at least one hydroxyl group in each molecule. The method comprises providing a polyoxyalkylene polymer having at least one unsaturated group and at least one alcoholic hydroxyl group in each molecule, wherein the polyoxyalkylene polymer includes an impurity double metal cyanide complex mixed therein, and wherein the polyoxyalkylene polymer has not been treated with a metal-coordinating compound; and adding to the polyoxyalkylene polymer a compound having a hydrogen-silicon bond and a crosslinkable silyl group in each molecule and a hydrosilylation catalyst to thereby carry out a hydrosilylation reaction, wherein the hydrosilyation reaction is performed in an absence of a metal-coordinating compound.

Methods for producing crosslinkable silyl group-containing polyoxyalkylene polymers

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Lake Jackson, TX, United States of America

Daniel A Aguilar