Wacker-chemie Gmbh

Consortium Fur Elektrochemische Industrie Gmbh

Die Wacker-chemie Gmbh

Volker Frey

Bernd Pachaly

Bernward Deubzer

Norbert Zeller

Richard Weidner

Peter John

Rudolf Riedle

Werner Graf

Andreas Bauer

Johann Schuster

Horst Muller

Matthias Wolfgruber

Oliver Sch&auml;fer

Herbert Barthel

Michael Stepp

Leonhard Brader

Norbert Egerter

Reinhold Artes

Matthias Scherer

Christian Herzig

Fritz Schwertfeger

Herbert Straussberger

Karl-Heinrich Wegehaupt

Hans Mayer

Michael Roth

Friedrich Hockemeyer

Tassilo Lindner

Wolfgang Deinhammer

Manfred Meisenberger

Johann Weis

Manfred Wick

Helmut Oswaldbauer

Josef Esterbauer

Norbert Gamon

Ferdinand Pradl

Edgar Schmidt

Ingeborg Koenig-Lumer

Helmut Spork

Georg Engelsberger

Christian Solbrig

Wolfgang Feichtner

Reinhardt Mueller

Wolfgang Wagner

Gerhard Kalchgruber

Wolfgang Kohlmann

Erich Bildl

Herbert Jekat

Hermann Blank

Reinhardt Muller

Jochen Rauch

Hartmut Jahn

Hans-Peter Scherm

Wolfgang Schweren

Robert Leser

Achim Molter

Peter Ritter

Kurt Leitner

Markus Kriegbaum

Hans-Gunter Rose

Esterbauer Josef

Preparation of alkylamines

Extremely high solids content silica dispersions are useful for forming green bodies of near net shape as compared to the shape of the bodies after sintering. The green bodies are particularly useful for sintering to form low impurity-containing crucibles for single crystal silicon production.

High-solids SiO2 dispersions, process for producing them, and their use

Preparation of amino-functional siloxanes

Cyclic silazanes

Preparation of organosilanes

The invention relates to aliphatically unsaturated organosilicon compounds having 2 to 17 silicon atoms, to processes for their preparation and to their use in crosslinkable organopolysiloxane compositions, especially in compositions which can be crosslinked peroxidically or by hydrosilylation.

Organosilicon compounds, processes for their preparation, and their use in crosslinkable organopolysiloxane compositions

Organosilicon compounds, processes for their preparation, and their use

The present invention relates to organopolysiloxane resin solutions which contain 1-alkenes and are free from aromatic hydrocarbons, processes for their preparation and their use in organopolysiloxane compositions from which it is possible to produce coatings which repel tacky substances.

Organopolysiloxane resin solutions, processes for their preparation, and

Organopolysiloxane resin powders having a mean particle diameter (median value d.sub.50,3) of from 70 to 300 .mu.m and a proportion of resin particles having a diameter &lt;45 .mu.m of less than 5 percent by weight, based on the total weight of the organopolysiloxane resin powder.

Organopolysiloxane resin powder, process for its preparation and its use

Coating compositions based on water-redispersible powders comprising water-soluble polymer and organosilicon compounds, wherein the organosilicon compounds comprise at least one low molecular weight organosilicon compound having a viscosity of not more than 5,000 mm.sup.2 /s at 25.degree. C. and at least one high molecular weight organopolysiloxane resin which has a viscosity of at least 100,000 mm.sup.2 /s at 25.degree. C. or is solid at room temperature.

Coating composition based on water redispersible powders comprising

Methylchlorosilanes are prepared from silicon and methyl chloride in the presence of a copper catalyst and optionally promoter substances, the production rates of the individual methylchlorosilanes, based on the surface area of the silicon employed, being controlled by the structural parameter QF of the silicon. The structural parameter QF is determined by

Process for the preparation of methylchlorosilanes

The present invention relates to a process for preparing coating compositions which comprises condensing a mixture containing (A) at least one silicone resin containing Si-bonded alkoxy groups and, if desired, silanol groups and/or at least one silane and/or siloxane which contains Si-bonded alkoxy groups and, if desired, silanol groups to form a silicone resin, (B) a basic condensation catalyst in an amount sufficient to render this mixture basic, (C) optionally water and (D) optionally an organic solvent. The resultant coating compositions are preferably employed in the form of a solution, emulsion or dispersion.

Silicone resin-based coatings

Organosols of organopolysiloxanes are prepared by adding water-soluble organic solvents or mixtures thereof or water-soluble mixtures of water-soluble and water-insoluble organic solvents to aqueous, colloidal suspensions of organopolysiloxanes obtained by adding at least one alkoxysilane and/or the partial hydrolyzate thereof, and, if appropriate, mixed with an organo(poly)siloxane free of alkoxy groups and having a maximum of 8 siloxane units per molecule, to water in the presence of emulsifiers at a maximum rate of 5 moles of organosilicon compound per hour and per liter of water, and subsequently removing the water by distillation.

Organosols of organopolysiloxanes and a process for preparing the same

The invention relates to compounds of the formula

Organooligosilsesquioxanes

The invention relates to a process for preparing highly porous glass-ceramic molded parts having carbon atoms linked to silicon atoms, which comprises reacting a molded part, containing an organopolysiloxane which is solid at room temperature, and consists of units of the formula ##STR1## where R is a radical selected from the formulas ##STR2## and is linked via a single silicon-silicon bonded, in a non-oxidizing atmosphere or in vacuo at temperatures ranging from 700.degree. to 1300.degree. C.

Process for preparing highly porous glass-ceramic molded parts

Growing community of inventors

Burghausen, Germany

Volker Frey