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. 01, 2019
Filed:
Dec. 18, 2012
Applicant:
Evonik Degussa Gmbh, Essen, DE;
Inventors:
Herbert Gartner, Baden-Baden, DE;
Marc Hager, Haguenau, FR;
Harald Plochinger, Buhl, DE;
Sabine Auernig, Haguenau, FR;
Hans-Peter Kohler, Buhlertal, DE;
Elisabeth Lacker, Rheinau-Freistett, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F26B 3/00 (2006.01); B29B 9/16 (2006.01); C08J 3/00 (2006.01); C08J 3/12 (2006.01);
U.S. Cl.
CPC ...
F26B 3/00 (2013.01); B29B 9/16 (2013.01); C08J 3/00 (2013.01); C08J 3/124 (2013.01); B29B 2009/168 (2013.01);
Abstract
The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature equal to or above 150° C. in a fluidized bed dryer at a fast heat-up rate, the use of a fluidized bed dryer for heat-treating water-absorbing polymeric particles in continuous or batch mode as well as to the heat-treated polymeric particles obtained by the method of the present invention.