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:
Feb. 25, 2014
Filed:
Apr. 27, 2010
Norbert Güntherberg, Speyer, DE;
Rainer Bardon, Dannstadt-Schauernheim, DE;
Hartmut Heinen, Ludwigshafen, DE;
Michael Sauer, Hockenheim, DE;
Ludger Leber, Dannstadt-Schauernheim, DE;
Wolfgang Fischer, Walldorf, DE;
Norbert Güntherberg, Speyer, DE;
Rainer Bardon, Dannstadt-Schauernheim, DE;
Hartmut Heinen, Ludwigshafen, DE;
Michael Sauer, Hockenheim, DE;
Ludger Leber, Dannstadt-Schauernheim, DE;
Wolfgang Fischer, Walldorf, DE;
Styrolution GmbH, Frankfurt, DE;
Abstract
A shell-and-tube heat exchanger, for removing volatile substances from a polymer solution by degasification, includes a bundle of tubes arranged vertically and parallel to each other in a shell chamber through which a fluid heat-transfer medium flows. The upper end of each tube is fixed in an upper tube sheet and the lower end of each tube is fixed in a lower tube sheet, and the polymer solution flows through the tubes in the direction of gravity. One feature is that a multilayer woven wire fabric is attached to the top of the upper tube sheet. The finest meshed layer of the fabric has a mesh width of 50 μm to 1000 μm. The invention also relates to a method for removing volatile substances from a polymer solution by degasification in a shell-and-tube heat exchanger and use of the shell-and-tube heat exchanger.