PRODUCTION OF FLAME-RETARDANT POLYCARBONATE AND ITS MOLDING PRODUCT

摘要

PROBLEM TO BE SOLVED: To obtain a flame-retardant polycarbonate molding product having high transparency even in a molded sheet or a thick molding product followed by an annealing process. SOLUTION: A polycarbonate is mixed with at least one kind selected from the group consisting of an alkali metal perfluoroalkylsulfonate, an alkaline earth metal perfluoroalkylsulfanate and a quaternary ammonium perfluoroalkylsulfonate such as potassium trifluoromethanesulfonate to give a flame-retardant polycarbonate having, for example, =6 mm thickness.