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:
Jun. 16, 2026
Filed:
Mar. 31, 2021
Alpla Werke Alwin Lehner Gmbh & Co. KG, Hard, AT;
Robert Siegl, Dornbirn, AT;
Michael Heyde, Bergisch Gladbach, DE;
ALPLA WERKE ALWIN LEHNER GMBH & CO., Hard, AT;
Abstract
Process for deodorization of recycled polyolefin pellets () in three steps: In a first step, the moist pellets () are contacted with a circulating inert gas at a temperature between 110° C. and 160° C. in a steam stripper (), and the steam is precipitated in a condensate trap (). In a second step, the pellets () are sent to a vacuum silo () under negative pressure and contacted with a gas flowing in countercurrent. In a third step, after the vacuum silo () the pellets () are sent to a first heat exchanger () and contacted with the gas flowing in countercurrent from the second step.