METHOD FOR RECYCLING OF SILICONES

A process for the recycling of silicones, especially silicone rubber and/or silicone oils, by the chemical transformation thereof to silanes and/or siloxanes having acetoxy groups is described, wherein silicone rubber and/or silicone oils are subjected to a heat treatment in digestion systems compri...

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Bibliographische Detailangaben
Hauptverfasser:	KNOTT, Wilfried, DUDZIK, Horst, SCHAEFER, Dietmar
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	A process for the recycling of silicones, especially silicone rubber and/or silicone oils, by the chemical transformation thereof to silanes and/or siloxanes having acetoxy groups is described, wherein silicone rubber and/or silicone oils are subjected to a heat treatment in digestion systems comprising acetic anhydride and/or acetoxysiloxane, and at least one Brønsted acid, with addition of acetic acid.