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. 17, 2018

Filed:

Sep. 20, 2013
Applicant:

Bühler Thermal Processes Ag, Oberbüren, CH;

Inventors:

Andreas Christel, Zuzwil, CH;

Brent Allan Culbert, Wil, CH;

Fernando Eusebio, Uttwil, CH;

Assignee:

POLYMETRIX AG, Oberbüren, CH;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J 2/00 (2006.01); C08J 3/12 (2006.01); B29B 9/06 (2006.01); C08G 63/88 (2006.01); B29B 9/16 (2006.01); B29B 9/12 (2006.01);
U.S. Cl.
CPC ...
B01J 2/00 (2013.01); B29B 9/065 (2013.01); B29B 9/16 (2013.01); C08G 63/88 (2013.01); C08J 3/124 (2013.01); B29B 9/06 (2013.01); B29B 9/12 (2013.01); B29B 2009/165 (2013.01); B29B 2009/168 (2013.01);
Abstract

An apparatus for continuous pelletization and crystallization of a polymer includes a unit for forming a polymer pellet material and cooling the pellet material in a liquid cooling medium. An after-connected drying unit has an exit opening for exporting gas and a crystallizer for crystallizing the pellet material. The crystallizer communicates via a connection line with the pre-connected unit for separating the liquid cooling medium from the pellet material and drying the pellet material. The crystallizer communicates with an inert gas tank, whereby the pressure in the crystallizer can be increased relative to the pressure in the drying unit. A related process is also disclosed.


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