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. 13, 2019
Filed:
Dec. 13, 2012
Evonik Degussa Gmbh, Essen, DE;
Herbert Vorholt, Haltern am See, DE;
Henry Rudolph, Krefeld, DE;
Armin Reimann, Willich, DE;
Volker Becker, Oberhausen, DE;
Detlef Jung, Toenisvorst, DE;
Manfred van Stiphoudt, Kempen, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
The invention relates generally to a process for the preparation of water-absorbent polymer particles, comprising the process steps including of drying the polymer gel particles wherein in process step (viii) the gel particles obtained in process step (vii) are charged onto the surface of the belt material of a belt dryer at a position Land are subsequently dried on their way through the belt dryer and wherein the belt material has been cooled before coming into contact with the gel particles. The invention also relates to water-absorbent polymer particles obtainable by such a process.