Monomer solution for producing polycarbonate

A non-reactive monomer mixture has a monomer component dispersed in a melted diaryl carbonate. The monomer component has one or more monomer compounds having a melting point below the melting point of the diaryl carbonate. Furthermore, the monomer component has less than 600 ppb alkali metal, an aci...

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Bibliographic Details
Main Authors Brack, Hans-Peter, Campman, Maarten Antoon Jan, Oyevaar, Martin Herke, Perez de Diego, Yohana, van der Wekke, Laurus, Willemse, Dennis James Patrick Maria
Format Patent
LanguageEnglish
Published 17.11.2009
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Summary:A non-reactive monomer mixture has a monomer component dispersed in a melted diaryl carbonate. The monomer component has one or more monomer compounds having a melting point below the melting point of the diaryl carbonate. Furthermore, the monomer component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The monomer compounds of the monomer component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the melting temperature of the lowest melting monomer compound and the melting temperature of the diaryl carbonate.