METHOD FOR THE PREPARATION OF BISPHENOL-A POLYCARBONATE WITH REDUCED LEVELS OF FRIES

摘要

The present invention provides a composition comprising polycarbonate wherein the polycarbonate has a very low Fries content (e.g.above 5 ppm and below 360 ppm). The present invention also provides a polycarbonate having a very low Fries content which is made by the melt process. This polycarbonate has high ductility and high impact strength. The invention also provides a method for making these compositions. Another aspect of the invention is an optical disk comprising polycarbonate having a very low Fries content which is made by the melt process. Such optical disks resist breakage due to bending.