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:
Oct. 15, 2013
Filed:
Aug. 08, 2011
Kurt Hanimann, Pratval-Im Ried, CH;
Eike Schulz Van Endert, Berlin, DE;
Theodor Anton Bruckmann, Greven-Gimbte, DE;
Kurt Hanimann, Pratval-Im Ried, CH;
Eike Schulz Van Endert, Berlin, DE;
Theodor Anton Bruckmann, Greven-Gimbte, DE;
Uhde Inventa-Fischer GmbH, Berlin, DE;
BKG Bruckmann & Kreyenborg Granuliertechnik GmbH, Munster, DE;
Abstract
The invention relates to a method and device for the direct production of polyester granulate from a highly viscous polyester melt with a polymerization degree of 132 to 165, as well as the granulates formed thereform. In the method, the highly viscous polyester melt is subjected to a pre-drying and drying/degassing after a hot cutting method. Hot cutting is implemented at water temperatures of 70° C. to 95° C. and with a liquid to solid ratio of 8 to 12:1.