General Electric Company

Other

Momentive Performance Materials Gmbh

Ck Witco Corporation

Michael R Powell

James S Ritscher

Curtis L Schilling, Jr

Frank Dominic Mendicino

Thomas E Childress

Tiberiu L Simandan

Mark D Westmeyer

Robert Sheridan

Mark P Bowman

Larry Allen Divins

He Bai

Patrick James Burns

Kevin L Bobbitt

Eric Michael Graban

Frank D Mendicino

Robert Ae Sheridan

Larry A Divins

A process for manufacturing an organosilicon product having a stabilized low color and no formation of black particles during storage includes (a) reacting an unsaturated compound with a silicon compound having a reactive Si&#x2014;H bond under hydrosilylation conditions in a reaction zone in the presence of a heterogeneous precious metal catalyst to provide an organosilicon product having a color of less than 40 pt/co; (b) separating the heterogeneous precious metal catalyst from the organosilicon product; and (c) recovering the heterogeneous precious metal catalyst.

Process of manufacturing organosilicon products with improved quality using heterogeneous precious metal catalysts

A process for the preparation of organoalkoxysilanes containing one or more organic functional groups derived from organic acids or hydrogen cyanates, by a continuous or batch process utilizing a solid guanidinium salt as a phase transfer catalyst for the reaction between a liquid phase haloalkylalkoxysilane and a solid phase alkali or alkaline earth metal salt or ammonium salt of an organic acid or a metal cyanate.

Process for producing organoalkoxysilanes from organic acids or cyanates and haloalkylalkoxysilanes

Mercaptoalkylalkoxysilane is obtained by reacting at least one sulfide of the general formulaMHSwherein M is an alkali metal or ammonium with a haloalkyl silane in an aqueous reaction medium in the presence of an acidic gas to maintain the pH of the reaction medium at or below about 10, and in the additional presence of alkylguanidinium salt phase transfer catalyst to provide mercaptoalkylalkoxysilane, the alkylguanidinium salt phase transfer catalyst being represented by the general formula: wherein each of Ris a primary alkyl radical and Ris a primary alkyl or bis(primary alkylene) radical, or at least one of the R&#x2013;R, R&#x2013;Rand R&#x2013;Rcombinations with the respective connecting nitrogen atom forms a heterocyclic radical; X is an anion; and n is 1 or 2.

Process for the production of mercaptoalkylalkoxysilanes

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 for hydrosilation reactions between olefins and hydrosilanes or hydrosiloxanes wherein a portion of the reactor output is recycled continuously to the reactor.

Hydrosilation reaction process with recycle

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New Martinsville, WV, United States of America

Michael R Powell