发明授权
US5336750A Process for the preparation of polycarbonates 失效
聚碳酸酯的制备方法

Process for the preparation of polycarbonates
摘要:
A process for the preparation of a polycarbonate comprising reacting a diaryl carbonate with a bisphenol to produce a polycarbonate and a phenol, regenerating the diaryl carbonate by reacting the phenol byproduct with a carbonyl halide, and optionally recycling the hydrogen halide using a metal Redox captive halogen swing reactor system.
信息查询
0/0