PROCESS FOR PRODUCING AN AROMATIC POLYCARBONATE

A process for producing an aromatic polycarbonate in a water-in-oil emulsified form, having an improved heat stability during molding at a high temperature, is described. In the process according to the present invention, a tertiary amine is added to the water-in-oil emulsion after the average diame...

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Bibliographische Detailangaben
Hauptverfasser:	AKIHARA, ISAO, TAMURA, MITSUHIKO
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 process for producing an aromatic polycarbonate in a water-in-oil emulsified form, having an improved heat stability during molding at a high temperature, is described. In the process according to the present invention, a tertiary amine is added to the water-in-oil emulsion after the average diameter of liquid droplets of the water phase is reduced to not more than 10 mu m. The polycarbonate obtained by the process of the present invention is improved in heat stability and can provide a molded article with less coloration.