CPC B29B 17/0206 (2013.01) [B29B 7/90 (2013.01); B29B 9/02 (2013.01); C08F 6/10 (2013.01); C08J 3/22 (2013.01); B29B 2017/0293 (2013.01); B29K 2023/06 (2013.01); B29K 2077/00 (2013.01); B29K 2507/04 (2013.01); C08J 2323/06 (2013.01)] | 28 Claims |
1. An extruder, comprising a housing, a material inlet for a mixture including solvent and dissolved medium, a material outlet, a screw rotatable in the housing, a screw drive, and two or more distillation regions between the material inlet and the material outlet which allow an outflow of the solvent, wherein:
each of the two or more distillation regions is equipped with a respective heater;
the two or more distillation regions are arranged in succession along the screw; and
the extruder is attached to a discharge line for the solvent.
|