| 摘要 |
The invention relates to a device for increasing the limiting viscosity of polyester materials by means of solid phase polycondensation (SSP), comprising a heatable reaction container (2, 2'), wherein the polyester material (P) can be left to dwell at a predetermined thermal treatment temperature for a predetermined dwell time until it has a desired limiting viscosity, and a cooling container (6, 6') which is arranged downstream from the reaction container (6, 6'). Said cooling container (6, 6') is embodied such that it can cool the polyester material, which is distributed by the reaction container, to a cooling temperature which is lower than the reaction temperature. A polyester material separator (7) is arranged downstream from the cooling container (6, 6') and is embodied in such a manner that the polyester material flow is diverted to a polyester material processing machine (8) and/or to an intermediate storage container (10). ® KIPO & WIPO 2008 |
