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Preparation of polycarbonates comprising separating bisphenol, converting bisphenol to diaryl carbonate and recycling
Preparation of polycarbonates comprising separating bisphenol, converting bisphenol to diaryl carbonate and recycling
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机译:制备聚碳酸酯,包括分离双酚,将双酚转化为碳酸二芳基酯并回收
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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.
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