公开(公告)号：US11059931B2

公开(公告)日：2021-07-13

申请号：US16640901

申请日：2018-08-29

申请人： INEOS STYROLUTION GROUP GMBH

发明人： Michiel Verswyvel ,  Norbert Niessner ,  Rainer Moors ,  Konrad Knoll ,  Bart Van-Den-Bossche ,  Christof Camerlinck

IPC分类号： C08F297/04 ,  B01J4/00 ,  B01J19/00 ,  B01J19/18 ,  C08F2/01 ,  C08F2/08 ,  C08F2/42 ,  C08F6/06 ,  C08F112/08

摘要： Process for the preparation of styrenic polymers having an improved color stability by anionic polymerization wherein the obtained terminated polymer solution is fed to a dispersing device to which water is added, fed to a buffer vessel and then is impregnated in a static mixer by addition of further water, carbon dioxide and one or more stabilizers.