Method for producing aqueous hydrolysates from aminoalkyltrialkoxysilanes

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United States of America Patent

PATENT NO 10259832
APP PUB NO 20180127442A1
SERIAL NO

15576289

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Abstract

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

    (a) initially charging water, optionally heating,(b) adding hydrolysable silanes consisting of at least one aminoalkyltrialkoxysilane in an amount which provides a molar ratio of water to total amount of aminoalkyltrialkoxysilane of 10.5 to 20, and(c) distilling off the alkyl alcohol formed in the reaction,wherein the solids content in an aqueous composition thus prepared is 30% to 55% by weight, based on the composition, and the aqueous solution has a total content of free and bound alkyl alcohol of not more than 1% by weight, based on the composition.

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Patent Owner(s)

Patent OwnerAddress
EVONIK OPERATIONS GMBHRELLINGHAUSER STRASSE 1-11 ESSEN 45128

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bibbo, Kerstin Rheinfelden, DE 3 40
Lippert, Irene Rheinfelden, DE 4 58
Standke, Burkhard Loerrach, DE 107 2414
Wassmer, Christian Hausen, DE 24 345

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