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:
Aug. 05, 2014
Filed:
Mar. 15, 2007
Paulus Schmaus, Ludwigshafen, DE;
Michael Heeger, Ludwigshafen, DE;
Joachim Ruch, Wachenheim, DE;
Jan Holoch, Leimen, DE;
Christian Rasch, Römerberg, DE;
Paulus Schmaus, Ludwigshafen, DE;
Michael Heeger, Ludwigshafen, DE;
Joachim Ruch, Wachenheim, DE;
Jan Holoch, Leimen, DE;
Christian Rasch, Römerberg, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to a process and an apparatus for pelletizing polymer melts comprising blowing agent in a pelletizing chamber through which a liquid flows, its pressure being above the ambient pressure. In a first step, the polymer melt is injected into the pelletizing chamber, in a second step the polymer melt is cut via a cutting apparatus into individual pellets and, in a third step, the pellets produced in the pelletizing process are discharged with the liquid from the pelletizing chamber and are then isolated from the liquid. This process also comprises at least one of the following steps: