Preparation of copolycarbonates

   
   

A process for the preparation of transparent copolycarbonate is disclosed. The copolycarbonate the molecular structure of which contains more than 35 mole % of units derived from dihydroxydiphenylene is prepared by the melt transesterification process wherein the final temperature of the reaction is reached in less than 40 minutes after reaching the starting temperature.

Un proceso para la preparación del copolycarbonate transparente se divulga. El copolycarbonate la estructura molecular de el cual contiene más de 35 el topo % de las unidades derivadas de dihydroxydiphenylene es preparado por el proceso del transesterification del derretimiento en donde la temperatura final de la reacción se alcanza en menos de 40 minutos después de alcanzar la temperatura que comienza.

 
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