| 摘要 |
<p>A system for producing a polycondensation polymer which comprises (A) an inert-gas absorption device for causing a molten polycondensation prepolymer to absorb an inert gas, (B) a polymerizer for polymerizing under a reduced pressure the molten prepolymer (α) containing the inert gas and obtained in the device (A), and (C) a piping through which the prepolymer (α) is transferred from the device (A) to the device (B), the devices (A and B) being disposed in this order and connected through the piping (C); and a process for producing a polycondensation polymer using the system. By use of the system and process, a colorless polycondensation polymer of high quality can be produced at a high polymerization rate without using a large quantity of an inert gas.</p> |
