Polycarbonate resin with a reduced volatile chlorine content and process for producing the same

摘要

There is provided a polycarbonate resin with a reduced volatile chlorine content in which the amount of a chlorinous matter as volatilized from the resin when the resin is heated at 280 DEG C. for 30 minutes and then allowed to stand at room temperature for 3 days is 30 ppb or lower as calculated in terms of the amount of Cl atom. There is also provided a process for producing a polycarbonate resin using phosgene as a raw material, the improvement comprising using phosgene having a chlorine concentration of up to 1,000 ppb as the raw material thereby to provide the resin with a reduced volatile chlorine content.