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:
Mar. 01, 2011
Filed:
Mar. 21, 2007
Joachim Seibring, Freinsheim, DE;
Jens Becker, Eisenberg, DE;
Michael Kopietz, Grünstadt, DE;
Theodor Bruckmann, Greven-Gimpte, DE;
Joachim Seibring, Freinsheim, DE;
Jens Becker, Eisenberg, DE;
Michael Kopietz, Grünstadt, DE;
Theodor Bruckmann, Greven-Gimpte, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to a process for pelletizing polymer melts, at above ambient pressure, in a pelletizing chamber into which a cutting apparatus has been inserted. In a first step, the pelletizing chamber is flooded with a gas which is inert toward the polymer melt and whose pressure is that at which the pelletizing process is carried out. The polymer melt is then injected into the pelletizing chamber. Finally, the gas is displaced from the pelletizing chamber via a liquid as soon as the polymer melt begins to flow through the cutting apparatus, this melt being cut into pellets.