Patent Number: 6,252,018

Title: Use of a single-stage or multistage stirrer to prepare polymers

Abstract: At least one single-stage or multistage stirrer which produces not only a tangential flow component but also an axial flow field is used in a stirred-vessel reactor in connection with the preparation of polymers by liquid phase polymerization.

Inventors: Rupaner; Robert (Ellerstadt, DE), Lawrenz; Sven (Mannheim, DE), Bauer; Gerhard (Weinheim, DE), Dobbelaar; Johannes (Wachenheim, DE), Nahstoll; Jurgen (Eisenberg, DE), Mueseler; Franz-Josef (Neustadt, DE), Ferber; Axel (Worms, DE), Hartmann; Jurgen (Frankenthal, DE), Keller; Peter (Hirschberg, DE), Meister; Martin (Neustadt, DE), Neutzner; Josef (Neustadt, DE), Rehmer; Gerd (Beindersheim, DE)

Assignee: BASF Aktiengesellschaft

International Classification: B01J 19/20 (20060101); B01J 19/18 (20060101); C08F 6/00 (20060101); B01F 7/00 (20060101); C08F 002/01 ()

Expiration Date: 06/26/2018