公开(公告)号：US06458920B1

公开(公告)日：2002-10-01

申请号：US09807791

申请日：2001-05-23

申请人： Richard Baxendell ,  Christian Kords ,  Lora Rand ,  Jürgen Heuser

发明人： Richard Baxendell ,  Christian Kords ,  Lora Rand ,  Jürgen Heuser

IPC分类号： C08G6400

CPC分类号： C08G64/406

摘要： The production of polycarbonate by the phase boundary method is disclosed. In accordance with the inventive process, a solution that contains polycarbonate is repeatedly washed with a washing liquid and the washing liquid is separated from the solution that contains the polycarbonate by separating elements and the solvent is then evaporated. The process is characterized in that the organic solution that contains the polycarbonate and the washing liquid are separated from each other after the first washing stage in a coalescer that contains hydrophilic packing.

摘要翻译： 公开了通过相边界法生产聚碳酸酯。 根据本发明的方法，用洗涤液反复洗涤包含聚碳酸酯的溶液，并通过分离元素将洗涤液与含有聚碳酸酯的溶液分离，然后蒸发溶剂。 该方法的特征在于，在包含亲水性填料的聚结器中，在第一洗涤阶段之后，含有聚碳酸酯和洗涤液的有机溶液彼此分离。