Union Carbide Corporation

General Electric Company

Momentive Performance Materials Gmbh

Crompton Gmbh

Osi Specialties, Inc.

Frank Dominic Mendicino

Thomas E Childress

Kenrick M Lewis

Hua Yu

Vikram Kumar

Mark Paul Bowman

Nan S Chu

Tiberiu L Simandan

George M Omietanski

Michael R Powell

Mark D Westmeyer

Larry Allen Divins

Sebastiano Magri

R Ingrid Warren

Marco Veri

John P Smith

David Mark Wilcox

Jeffrey R Kelby

Lina Zhao

Steven Roger Bahr

Dung-Thi Vu

The invention herein is directed to a process for producing isocyanatoorganosilanes having low color and improved color stability over known isocyanatosilanes involving a neutralizing step in which a carbamatoorganosilane intermediate is neutralized with acid to a pH equal to or greater than 6.0, to the isocyanatosilane produced by said process and to coatings and numerous other industrial applications which are useful in numerous industries containing the isocyanatoorganosilane produced by the process.

Process for producing low-color and color-stable isocyanatoorganosilanes and products derived therefrom

Organosilicon compounds are prepared by the addition reaction of a gaseous unsaturated hydrocarbon with a silane or siloxane containing at least one silicon-bonded hydrogen atom in the presence of a hydrosilylation catalyst in a liquid reaction medium. In this process the unsaturated hydrocarbon and optionally the silane or siloxane is dispersed into the liquid reaction medium by a jet eductor (also known as a venturi pump) device and the resultant gas-in-liquid dispersion is introduced into a bubble reactor.

Hydrosilylation process for gaseous unsaturated hydrocarbons

Disclosed is a process in which surface-active additives are used in the slurry phase Direct Synthesis of trialkoxysilanes to shorten the period between the start of the reaction and the attainment of steady-state rates and selectivities, to improve product yields and to control or prevent foam formation. Compositions comprising silicone antifoam compounds and fluorosilicone polymers are the preferred surface-active additives of the instant process.

Surface-active additives in the direct synthesis of trialkoxysilanes

A haloorganoalkoxysilane is prepared by reacting an olefinic halide with an alkoxysilane in which the alkoxy group(s) contain at least two carbon atoms in a reaction medium to which has been added a catalytically effective amount of ruthenium-containing catalyst and a reaction-promoting effective amount of an electron-donating aromatic compound promoter. The process can be used to prepare, inter alia, chloropropyltriethoxysilane, which is a key intermediate in the manufacture of silane coupling agents.

Process for making haloorganoalkoxysilanes

A process is disclosed for the continuous transesterification of alkoxysilanes wherein an alkoxysilane is transformed to a different alkoxysilane in the presence of a catalyst and at least one alcohol that provides the different alkoxy group.

Continuous transesterification process for alkoxyorganosilicon compounds

Dissolved silanes, silicones and silicates from solvents used in the slurry phase Direct Synthesis of alkoxysilanes are removed by adding a compatabilizing agent and water to generate filterable precipitates and reusable solvent. The solvents are thereby remediated and made suitable for reuse in Direct Synthesis processes. Foaming is reduced with the remediated solvent and silicon conversion rates are higher. The precipitates are easily filtered and retain negligible quantities of solvent.

Removal of dissolved silicates from alcohol-silicon direct synthesis

A process for producing controlled trialkoxysilane/tetraalkoxysilane mixtures by the direct reaction of silicon metal with an alcohol in the presence of a catalytically effective amount of a copper catalyst and mixed solvents, wherein at least one solvent is inert and does not degrade under the reaction conditions and at least one other solvent promotes the reaction between trialkoxysilanes and alcohol.

Process for trialkoxysilane/tetraalkoxysilane mixtures from silicon

An extractive distillation process for recovering trimethoxysilane from a trimethoxysilane-methanol mixture is provided using as the extractive solvent tetramethoxysilane.

Process for recovering trimethoxysilane from a trimethoxysilane and

A vapor phase process for the synthesis of alkoxysilanes of the general formula HSi(OR'').sub.x (R').sub.3-x which comprises reacting

Vapor phase alcoholysis of aminosilanes and carbamatosilanes

A process for producing trialkoxysilane by the direct reaction of silicon metal with an alcohol, ROH, in the presence of a catalytically effective amount of copper (II) hydroxide, wherein R is an alkyl group containing from 1 to 6 carbon atoms.

Process for producing trialkoxysilanes from the reaction of silicon

The method of this invention relates to the manufacture of epoxy substituted siloxanes by reacting an ethylenically unsaturated epoxy monomer with Si-H compound using chloroplatinic acid as the catalyst. The improvement involves adding a hydrochloride acceptor to the reaction to sequester HCl present from decomposition of the catalyst.

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Marietta, OH, United States of America

Frank Dominic Mendicino