PROCESS FOR PRODUCING A HALOGEN-CONTAINING POLYCARBONATE RESIN

摘要

A halogen-containing polycarbonate resin is formed by co-polymerizing: (a) 15 to 55 parts by weight of u polycarbonate oligomer with terminal chloroformate groups, having a number average molecular weight of 500 to 10,000 and containing no halogen or less than 4% by weight of halogen, (b) 20 to 80 parts by weight of a halogen-containing polycarbonate oligomer with terminal chloroformate groups, having a number average molecular weight of 1,000 to 10,000 and containing 6 to 30% by weight halogen, and (c) 5 to 25 parts by weight of bisphenol A.