Wacker Chemie Ag

Wacker Polymer Systems Gmbh & Co. Kg

Wacker-chemie Gmbh

Thomas Kornek

Kurt Stark

Volker Stanjek

Torsten Gottschalk-Gaudig

Andreas Bauer

Andreas Bacher

Alfred Popp

Bernhard Glaser

Karl-Heinz Eichel

Jürgen Pfeiffer

Jochen Rauch

Diana Senden

N-organylaminoorganyl- and N,N-diorganylaminoorganyl-triorganylsilanes are prepared continuously with high space/time yield, high product purity, and low halide content, while simultaneously increasing process safety, by introducing haloalkyltriorganylsilane and a 1 to 100 fold motor excess of organylamine into a continuous reactor with a residence time which may be less than 10 minutes, thus minimizing competing side reactions.

Method for the continuous production of silicon compounds bearing amino groups

(N-organylaminoorganyl)triorganylsilanes and (N,N-diorganylamino-organyl)triorganyl silanes are prepared in exceptional yield and high purity by reacting a cyclic or acyclic amine with low water content with a haloorganylsilane.

Method for the production of silicon compounds carrying amino groups

Blocked silyl isocyanates contain a methylene group between the blocked isocyanate group and silicon. The blocked isocyanates are easily prepared in high yield and purity.

Organosilicon compounds with a masked isocyanate group

The invention relates to polyvinyl alcohols and polyvinyl acetals which contain silane and can be obtained by means of a) radical polymerization of at least one vinyl ester of unbranched or branched alkyl carboxylic acids comprising between 1 and 18 C atoms, in the presence of aldehydes containing silane or the hemiacetals or full acetals thereof, b) saponification of the vinyl ester polymers obtained thereby, and optionally c) acetalation of the partially saponified or fully saponified vinyl ester polymers.

Polyvinyl alcohols and polyvinyl acetals containing silane

Preparation of organosilanes by hydrosilylation of an alkene takes place in a continuous manner using an iridium hydrosilylation catalyst and diene cocatalyst. The continuous process provides high yields in a safe and economical manner.

Continuous production of organosilanes

Organosilicon compounds containing isocyanate groups and composed of units (Ia)R(RO)XSiO, &#x2003;&#x2003;(Ia)are prepared by heating organosilicon compounds composed of units (Ib)R(RO)YSiO, &#x2003;&#x2003;(Ib)where

Process for preparing organosilicon compounds containing isocyanate groups

The invention relates to silane-modified polyvinyl acetals obtained by acetalizing partially hydrolyzed or fully hydrolyzed vinyl ester polymers having at least 50 mol % of vinyl alcohol units with one or more aldehydes, optionally in the form of their hemiacetals or their acetals, where at least one aldehyde contains hydrolyzable silane groups.

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Burghausen, Germany

Thomas Kornek