The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2014
Filed:
Jul. 01, 2010
Rolf Feller, Mettmann, DE;
Hanns-ingolf Paul, Leverkusen, DE;
Paul Wagner, Düsseldorf, DE;
John Lovegrove, Sarnia, CA;
Jörg Kirchhoff, Köln, DE;
Joachim Ritter, Leverkusen, DE;
Ricarda Leiberich, Neu-Isenburg, DE;
Udo Wiesner, Brasschaat, BE;
Rolf Feller, Mettmann, DE;
Hanns-Ingolf Paul, Leverkusen, DE;
Paul Wagner, Düsseldorf, DE;
John Lovegrove, Sarnia, CA;
Jörg Kirchhoff, Köln, DE;
Joachim Ritter, Leverkusen, DE;
Ricarda Leiberich, Neu-Isenburg, DE;
Udo Wiesner, Brasschaat, BE;
LANXESS International SA, Granges-Paccot, CH;
Abstract
The present invention relates to a reactor () and a process for continuous polymerization, where the reactor () has an essentially tubular reactor housing (). The reactor housing () has a drive () which runs along the geometric central axis () in the flow direction () and is configured as a central shaft. A rotatably arranged scraper or wiper () is provided within the reactor housing (); the scraper or wiper () has at least one scraper or wiper blade () to run along an interior side () of the reactor housing (). The rotational movement of the scraper or wiper () results in radial mixing of a stream within the reactor housing () which dominates gravity effects and, by virtue of shaping of the scrapers or wipers, optionally makes plug flow or backflow within the reactor () possible. This allows the reaction conditions in the axial direction of the reactor housing () to be predicted and individually suitable reaction conditions to be set and controlled along the reactor housing, so that, in particular, a desired molecular weight distribution can be set.