Method for producing an aromatic polycarbonate

Details Method for producing an aromatic polycarbonate Method for producing an aromatic polycarbonate

C - Chemistry, Metallurgy

08

G

C08G 64/30 (2006.01)

Patent

CA 2559821

A process for producing an aromatic polycarbonate of high quality which comprises melt-polymerizing an aromatic dihydroxy compound with a diaryl carbonate, characterized in that the step of mixing the aromatic dihydroxy compound with the diaryl carbonate comprises dissolving the aromatic dihydroxy compound which is solid and/or liquid and a catalyst in the diaryl carbonate in a molten state in the presence of an inert gas.

Procédé servant à produire un polycarbonate aromatique de qualité élevée lequel comprend de polymériser à l'état fondu un composé dihydroxy aromatique avec un carbonate de diaryle, caractérisé en ce que l'étape consistant à mélanger le composé dihydroxy aromatique avec le carbonate de diaryle comprend de dissoudre le composé dihydroxy aromatique qui est solide et/ou liquide et un catalyseur dans le carbonate de diaryle à l'état fondu en présence d'un gaz inerte.

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