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.

Date of Patent:
Apr. 10, 2018

Filed:

Jan. 20, 2014
Applicant:

Uhde Inventa-fischer Gmbh, Berlin, DE;

Inventors:

Ekkehard Siebecke, Berlin, DE;

Johannes Katzer, Berlin, DE;

Bernd Königsmann, Langewahl, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 69/16 (2006.01); B01J 19/00 (2006.01); B01J 19/24 (2006.01); C08G 69/14 (2006.01); B01J 19/18 (2006.01);
U.S. Cl.
CPC ...
C08G 69/16 (2013.01); B01J 19/006 (2013.01); B01J 19/0013 (2013.01); B01J 19/1812 (2013.01); B01J 19/245 (2013.01); B01J 19/2415 (2013.01); C08G 69/14 (2013.01); B01J 2219/00081 (2013.01); B01J 2219/00083 (2013.01); B01J 2219/00094 (2013.01); B01J 2219/00164 (2013.01); B01J 2219/00168 (2013.01); B01J 2219/00774 (2013.01); B01J 2219/182 (2013.01); B01J 2219/1943 (2013.01); B01J 2219/24 (2013.01);
Abstract

The invention relates to a reactor in the form of a VK tube (VK: simplified continuous), for the polymerisation of polyamides, the reactor being subdivided into an upper and lower reactor region, which are controllable independently of each other. Likewise, the invention relates to a method for the production of polyamides in which such a reactor is used.


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