SALTS OF NON-VOLATILE ACIDS AS POLYMERIZATION CATALYSTS

This invention relates to a method for the preparation of polycarbonate by the melt process comprising reacting a diphenol and a diarylcarbonate in the presence of a catalyst system comprising a catalytically effective amount of an alkali and/or alkali earth metal salt of a non volatile acid and a b...

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Bibliographische Detailangaben
Hauptverfasser:	MCLOSKEY, PATRICK, JOSEPH, BURNELL, TIMOTHY, BRYDON, SMIGELSKI, PAUL, MICHAEL, JR
Format:	Patent
Sprache:	eng ; fre ; 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:	This invention relates to a method for the preparation of polycarbonate by the melt process comprising reacting a diphenol and a diarylcarbonate in the presence of a catalyst system comprising a catalytically effective amount of an alkali and/or alkali earth metal salt of a non volatile acid and a base.