INHIBIERUNG VON KATALYTISCH AKTIVEN VERUNREINIGUNGEN IN POLYCARBONAT NACH DEM SCHMELZEUMESTERUNGSVERFAHREN

Esters of organic sulfur-containing acids are used to inhibit catalytically active impurities in polycarbonate production by melt transesterification. An independent claim is also included for polycarbonate production in which bridged esters of organic sulfur-containing acids are added between a med...

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Bibliographische Detailangaben
Hauptverfasser:	PFINGST, THOMAS, SNOBL, PETER, HEUER, HELMUT-WERNER, SIMON, LYDIA, BUNZEL, LOTHAR, BUTS, MARC, MOETHRATH, MELANIE
Format:	Patent
Sprache:	ger
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:	Esters of organic sulfur-containing acids are used to inhibit catalytically active impurities in polycarbonate production by melt transesterification. An independent claim is also included for polycarbonate production in which bridged esters of organic sulfur-containing acids are added between a medium-viscosity reactor and a high-viscosity reactor. [Image] [Image] [Image] [Image] [Image] [Image] [Image] [Image] [Image] [Image] [Image] [Image] [Image].