New PC plastic synthesis method that does not use phosgene

LG Chemicals has introduced a new method for the synthesis of PC plastics that does not use phosgene, which saves half the time compared to the existing non-phosgene melt synthesis methods. This results in high-quality polymers. Compared with the ubiquitous interface synthesis method using phosgene, which is commonly used in the industry, The factory construction fee can be reduced by about 70%. In addition to its own production, it also provides overseas joint ventures.
South Korea's LG Chemicals launches a non-photosynthetic new synthesis method for PC plastics. General PC plastic synthesis is based on the phosgene reaction of bisphenol A (BPA) with phosgene. However, recently, non-light is widely used to reduce the environmental burden. Gas Melt synthesis method, a Melt synthesis method using carbon gas as a starting material, is a reaction of BPA and Diphenyl carbonate (DPC) to prepare a liquid low-molecular-weight PC prepolymer, and a solid polymer step is used to make a polymer PC. High-temperature and high-vacuum equipment is required. Because of the liquid polymerization step, the quality of the resin may be degraded. The new synthesis method introduced by LG is to improve the reaction steps between BPA and DPC. The synthesis time is shortened. Due to solid polymerization, only a single reactor is needed, the cost is low, and the crystallinity and transparency of the resin are high.