Technical origins and design entities of polycarbonate
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Dear experts, regarding polycarbonate, I have seen many discussions on the technologies involved in the phosgene-based and non-phosgene-based methods. I would like to ask you: what are the origins and the companies responsible for the design of the production technologies for polycarbonate using the phosgene method? And for the non-phosgene-based methods, where do those technologies originate from and who is responsible for their design? I hope you will kindly share your knowledge with me. Thank you
For the non-phosgene method, one could consider Professor Wang Gongying from the Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences
There are likely no large-scale plants in China that use non-phosgene methods; the foreign technologies come from GE and Asahi Kasei. Non-phosgene method: Mitsubishi, Bayer
Hello! Have you contacted the design institute and the companies that hold technical patents? Could you introduce fyunchem@163.com and QQ851912338?