Siloxane bishchloroformates

Siloxane bishchloroformates

A continuous method for the preparation of bischloroformates of siloxane bisphenols, said method comprising introducing into a flow reactor and contacting therein at least one siloxane bisphenol, at least one metal hydroxide, at least one metal salt, at least one solvent and phosgene to form a flowi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SILVA JAMES M, DAVIS GARY C
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:A continuous method for the preparation of bischloroformates of siloxane bisphenols, said method comprising introducing into a flow reactor and contacting therein at least one siloxane bisphenol, at least one metal hydroxide, at least one metal salt, at least one solvent and phosgene to form a flowing reaction mixture having an organic phase and an aqueous phase and forming bischloroformates of siloxane bisphenols in the flowing reaction mixture.