Evonik Degussa Gmbh

Irene Lippert

Burkhard Standke

Christian Wassmer

Christoph Batz-Sohn

Steffen Hasenzahl

Heinz Lach

Stefan Scharfe

Tim Voegtlin

Peter Jenkner

Kerstin Bibbo

Tim VÖGTLIN

The present invention relates to a process for preparing aqueous hydrolysates of aminoalkyltrialkoxysilanes by

Method for producing aqueous hydrolysates from aminoalkyltrialkoxysilanes

The invention relates to a composition and to a method for the production thereof, comprising quaternary amino-functional organosilicon compounds, in particular in the form of oligomers and polymers, which can be present ranging from partially hydrolyzed form to completely hydrolyzed form, and which are in particular soluble in water, have a low VOC content, and to the use thereof.

Composition containing quaternary amino-functional organosilicon compunds and production and use thereof

Composition containing quaternary amino-functional organosilicon compounds and production and use thereof

The present invention relates to a process for performing a controlled hydrolysis and condensation of an epoxy-functional silane of the general formula I R1-SiR'm(OR)3-(I) in which R1 is a (III) or (IV) group and R, R&#x2032; and R&#x2033; groups are the same or different and are each hydrogen (H) or a linear, branched or cyclic, optionally substituted alkyl group having from 1 to 6 carbon atoms, A and A&#x2032; groups are the same or different and are each a bivalent alkyl group having from 1 to 10 carbon atoms, R2 groups are the same or different and R2 is a linear, branched or cyclic, optionally substituted alkyl group having from 1 to 20 carbon atoms, and m is 0 or 1, and optionally of at least one further organofunctional silane of the general formula II R2-SiR&#x2032;n(OR)3-(II) in which R2 is an organofunctional group as already defined above, R&#x2032; is methyl, R groups are each independently hydrogen or a linear, branched or cyclic alkyl group having from 1 to 6 carbon atoms and n is 0 or 1, where from 0.001 to &#x2266;5 mol of water is used per mole of alkoxy function of the silanes used, no further hydrolysis or condensation catalyst is used apart from boric acid as the hydrolysis catalyst and condensation component, and the condensates formed in the reaction are based on Si&#x2014;O&#x2014;B&#x2014; and/or Si&#x2014;O&#x2014;Si bonds.

Process for controlled hydrolysis and condensation of epoxy-functional organosilanes and the cocondensation thereof with further organofunctional alkoxysilanes

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Rheinfelden, Germany

Irene Lippert