PROCESS OF REMOVING SULFATE GROUPS FROM ORGANOPOLYSILOXANES

PROCESS OF REMOVING SULFATE GROUPS FROM ORGANOPOLYSILOXANES

In the disclosed process, sulfate groups are removed from organopolysiloxanes which contain groups in which the sulfate groups to be removed are intramolecularly and/or terminally linked to silicon atoms. According to the inventive process, the organopolysiloxanes are reacted with peralkylated amide...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ROSSMY, GERD
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:In the disclosed process, sulfate groups are removed from organopolysiloxanes which contain groups in which the sulfate groups to be removed are intramolecularly and/or terminally linked to silicon atoms. According to the inventive process, the organopolysiloxanes are reacted with peralkylated amides of carboxylic acids, phosphonic acids and/or phosphoric acids, whereby a SO3-containing peralkylated acid amide phase is obtained. This phase is then separated from the system.