Dynamit Nobel Aktiengesellschaft

Huels Aktiengesellschaft

Huls Aktiengesellschaft

Basf Aktiengesellschaft

Degussa Aktiengesellschaft

Huels Troisdorf Ag

Huels Atiengesellschaft

Evonik Degussa Gmbh

Claus-Dietrich Seiler

Hans-Joachim Vahlensieck

Jaroslaw Monkiewicz

Hartwig Rauleder

Hans-Joachim Kotzsch

Burkhard Standke

Michael Horn

Hans-Guenther Srebny

Albert Frings

Hans-Joachim Koetzsch

Frank Kropfgans

Peter Jenkner

Manfred Ohlinger

Heinz Nestler

Paul Deigner

Jurgen Amort

Otto Ambros

Willy Hange

Bernhard Lillig

Helmut Jakusch

Albert-Johannes Frings

Reinhold Schork

Fritz-Robert Kappler

Eduard Schonafinger

Uwe Schon

Helmut Dietsche

Eberhard Koester

Gerda Grund

Dieter Schaefer

Eduard Schoenafinger

Hermann Peeters

Reinhard Matthes

Bertram Trautvetter

Werner Stumpfi

Frank Steding

Hans-Joachim Vahlensick

Juergen Amort

Hans-Peter Schwarz

Hans-Joachim Vahlensteck

Hans-G&uuml;nther Srebny

Emanuel Fiolitakis

Hans-Joachim K&ouml;tzsch

Jim Steinmetz

Hans-Joachim Kötzsch

Apparatus and process for preparing substantially halogen-free trialkoxysilanes

Acyloxysilanes are prepared by a process of reacting an organochlorosilane with an excess of monocarboxylic anhydride at elevated temperature, thereby forming product acyloxysilane and by-product acyl chloride transferring the reaction mixture to the middle inlet of a separation tower having a still pot at its base, removing excess carboxylic anhydride by distillation at the tower top under reduced pressure, removing acyl chloride by-product from the separation tower, uniformly removing acyloxysilane from the tower still pot, and reacting virtually quantitatively the residual acid chloride present in the acyloxysilane removed from the still pot by adding a metal carboxylate to the acyloxysilane and separating the metal chlorides formed from the product.

Process for the continuous preparation of acyloxysilanes

A process for removing residual acidic chlorine from acyloxysilanes, comprises virtually quantitatively reacting metal carboxylates with the acidic chlorine present in the acyloxysilane, and the metal chlorides formed being separated off.

Process for removing residual acidic chlorine from acyloxysilanes

Organocarbonoyloxysilanes are prepared by reacting an organochlorosilane with a carboxylic acid in a first step which liberates HCl, removing the HCl which is formed, reacting the reaction mixture from the first step with a carboxylic acid anhydride in a second reaction step, the first and/or second reaction steps being conducted in the presence of a catalyst, and isolating the resulting organocarbonoyloxysilane product from the reaction mixture.

Process for the preparation of organocarbonoyloxysilanes

Cyclic silane esters and solvolysis products thereof and processes for making these materials. The cyclic silanes and their solvolysis products are useful as adhesives, crosslinking agents and reagents for modifying polymers containing ester groups.

Cyclic silane esters and solvolysis products thereof, and processes for

The invention relates to a process for preparing amino-functional organosilanes which are low in chlorofunctional organosilanes or essentially free of chlorofunctional organosilanes, by reacting chloro-functional organosilanes with organic amines or ammonia and separating off the organic ammonium chlorides and/or the ammonium chloride thus formed, wherein the small amounts of chloro-functional organosilanes which have not reacted with ammonia or alkylamines are reacted by addition of at least one metal alkoxide in a reaction downstream of the aminosilane synthesis.

Process for preparing amino-functional organosilanes low in or free of

Process for preparing alkylhydrogenchlorosilanes

3-Acryloyloxypropylalkoxysilanes of formula I:

Process for the preparation of 3-acryloyloxypropylalkoxysilanes

The invention relates to water-based organopolysiloxane containing compositions which are essentially free from organic solvents, have a flash point above 70.degree. C. and essentially liberate no alcohols by hydrolysis on dilution with water. The organopolysiloxane-containing compositions according to the invention are obtainable by mixing M mol of water-insoluble organotrialkoxysilanes with Q mol of water-soluble aminoalkylalkoxysilanes in a molar ratio of 0&lt;M/Q.ltoreq.2, adding water to the mixture, adjusting the pH of the reaction mixture to a value of between 1 and 8 and removing alcohol already present and/or formed during the reaction. The process for the preparation of the organopolysiloxane-containing compositions according to the invention and their use are also disclosed.

Water-based organopolysiloxane-containing compositions, processes for

The present invention relates to a process for preparing low-chloride or chloride-free aminofunctional organosilanes by reacting chlorofunctional organosilanes with organic amines or ammonia and separating off the organic hydrochlorides or ammonium chloride thus formed, wherein further amounts of organic hydrochlorides or ammonium chloride present are reacted by addition of metal alkoxides dissolved in alcohols and the metal chlorides formed are separated off, and also to aminofunctional organosilanes prepared thereby.

Process for preparing low-chloride or chloride-free aminofunctional

3-Halo- and pseudohalo-alkylsilane esters are prepared by reacting an allyl X compound or a compound containing an allyl X structure with a hydridosilane ester in the presence of an iridium catalyst prepared under specific conditions and/or the reaction medium containing a 0.01-100 mol % excess of the allyl X compound or compound containing the allyl X unit relative to the amount of hydridosilane ester reactant.

Process for the preparation of 3-halo-and pseudohalo-alkylsilane esters

Disclosed are organosilane polycondensation products prepared by hydrolysis of an hydrogen salt of an aminosilane compound or by hydrolysis of an aminosilane followed by reaction with an alkyl salt. The compounds are useful in forming stable aqueous solutions and as adhesion promoters between inorganic and organic surfaces.

Organosilane polycondensation products

Process for preparing aminopropylalkoxysilanes in the presence of shaped

Hydrogenalkoxysilanes are prepared by direct reaction of finely divided metallic silicon with alcohols in the presence of copper-containing catalysts in a heat-transfer oil comprising tritoluenes, tetratoluenes or mixtures thereof at from 100.degree. to 350.degree. C.

Process for preparing hydrogenalkoxysilanes

A process for the continuous production of vinylchlorosilanes by reacting vinyl chloride with chlorosilanes at elevated temperature consists of a heatable reaction tube having an internal diameter d.sub.1 and a tubular displacement body having an external diameter d.sub.2 mounted within the reaction tube in an axially symmetrical arrangement and extending over the entire length of the reaction tube, the diameter d.sub.2 being smaller than the diameter d.sub.1.

Process for the preparation of vinylchlorosilanes

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Rheinfelden, Germany

Claus-Dietrich Seiler