Degussa Aktiengesellschaft

Degussa - Huls Ag

Jorg Munzenberg

Gerd Rainhard Zezulka

Rudolf Michel

Werner Will

Thomas Gobel

Peter Panster

Rolf Mulhaupt

Ulrich Deschler

Matthias Prinz

Philipp Muller

Carl Van Der Auwera

The invention relates to a process for the production of organosilylalkyl polysulfanes by reacting an organosilylalide alkyl halide and an anhydrous or virtually anhydrous ionic sulfide and elementary sulfur, wherein the elementary sulfur and organosilylalkyl halide are suspended in a polar organic solvent and the ionic sulfide is added to this suspension.

Process for the production of organosilylalkyl polysulfanes

Organosilicon-disulfanes are prepared by decomposing organosilicon thiocyanates with an alkali metal alcoholate.

Process for the preparation of organosilicon-disulfanes

Mixtures are disclosed of bis(silylorganyl)polysulfanes and silylorganylthiocyanates, which are produced by reacting polysulfanes with cyanides. The inorganic thiocyanate formed is subsequently allowed to react with a haloalkylalkoxysilane to form the silylorganylthiocyanate. These substances are used in plastic and rubber mixtures reinforced with silica and optionally carbon black.

Mixtures consisting of bis (silylorganyl) polysulfans and

The preparation of high-purity organosilicon disulphanes in which, in a two-stage process, elemental sulphur and an anhydrous alkali sulphide in a deficient amount is first reacted with a halogen alkylalkoxysilane, and the sulphur deficit is then made up by the addition of further alkali sulphide.

Process for the preparation of high-purity organosilicon disulphanes

A process for the production of bis(silylorganyl)-polysulphanes of the formula

Process for the production of bis (silyorganyl) polysulphanes

Alkylalkoxysilyl-1,3-oxazolines, their production by reacting 2�-alkenyl!-1,3-oxazolines with alkylalkoxysilanes or cyano alkylene silane compounds with amino alcohols and the use of the compounds for modifying materials with siliceous surfaces.

Alkylalkoxysilyl-1,3-oxazolines, a method of production and use

A process is disclosed for the selective synthesis of silylalkyldisulphides by desulphurization of the corresponding polysulphides using nucleophilic reagents.

Growing community of inventors

Hanau, Germany

Jorg Munzenberg