专利检索 ap:("Covestro Deutschland AG") AND inv:"Sven Gestermann" 第 1 页

1.

发明授权
Process and apparatus for continuous production of aqueous polyurethane dispersions 有权

公开(公告)号：US10752727B1

公开(公告)日：2020-08-25

申请号：US15743342

申请日：2016-07-07

申请人： Covestro Deutschland AG

发明人： Hans Georg Grablowitz , Alexander Pross , Reiner Witkowski , Holger Breuer , Sven Gestermann , Christian Joachim Hahn , Stephan Schubert , Joachim Ritter

IPC分类号： C08G18/42 , C08G18/08 , C08G18/75 , C08G18/44 , C08G18/73

摘要： The application relates to a process for continuously producing aqueous polyurethane dispersions, which is characterized by the use of micro structured mixing elements and addition of water twice during the dispersion step. The energy input in the mixing of the dispersion is low. In addition, the application describes an apparatus suitable for execution of the aforementioned process.