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:
Apr. 03, 2012
Filed:
Nov. 12, 2007
Jaroslaw Boczon, Grossostheim, DE;
Andreas Doll, Aschaffenburg, DE;
Sven Fenchel, Babenhausen/Langstadt, DE;
Brent Allan Culbert, Wil, CH;
Fernando Eusebio, Uttwil, CH;
Franziska Morganti, Zürich, CH;
Jaroslaw Boczon, Grossostheim, DE;
Andreas Doll, Aschaffenburg, DE;
Sven Fenchel, Babenhausen/Langstadt, DE;
Brent Allan Culbert, Wil, CH;
Fernando Eusebio, Uttwil, CH;
Franziska Morganti, Zürich, CH;
Other;
Abstract
The invention relates to a method for the production of granulate grains of polymers from thermoplastic polyesters or copolyesters from a polyester melt using an extrusion granulator. The polyester melt is fed to nozzles of the extrusion granulator and then, with draw-in rollers, to the granulation device via an extraction section as extrusions exiting from the nozzle, wherein, e.g., an extrusion extraction speed is set by the draw-in rollers. The invention also relates to an improved extrusion granulator according to the invention having a wave device between the nozzles and the extraction channel, and granulate grains produced according to the method according to the invention.