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:
May. 12, 2020
Filed:
Apr. 15, 2016
Applicant:
Basf SE, Ludwigshafen am Rhein, DE;
Inventors:
Gerald Grünewald, Ludwigshafen, DE;
Rüdiger Funk, Niedernhausen, DE;
Matthias Weismantel, Jossgrund, DE;
Karl Possemiers, Speyer, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/00 (2006.01); F26B 3/06 (2006.01); F26B 17/04 (2006.01); F26B 21/02 (2006.01); F26B 21/12 (2006.01); C08F 2/01 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); C08F 2/06 (2006.01); C08J 3/12 (2006.01); F26B 25/06 (2006.01); B29B 9/10 (2006.01); B29B 9/12 (2006.01); C08F 20/06 (2006.01);
U.S. Cl.
CPC ...
F26B 3/06 (2013.01); B01J 20/28016 (2013.01); B01J 20/3021 (2013.01); C08F 2/00 (2013.01); C08F 2/01 (2013.01); C08F 2/06 (2013.01); C08J 3/12 (2013.01); F26B 17/04 (2013.01); F26B 21/02 (2013.01); F26B 21/12 (2013.01); F26B 25/06 (2013.01); B29B 9/10 (2013.01); B29B 9/12 (2013.01); C08F 20/06 (2013.01); C08J 2300/14 (2013.01);
Abstract
A production process for production of water-absorbing polymer particles including drying an aqueous polymer gel in a belt drier with a conveyor belt. The belt drier is formed with a drier setup substantially comprising the conveyor belt and an air recycling conduit downstream of the drier setup for air recycling, where recycled air is withdrawn from the drier setup and fed back to the drier setup via the air recycling conduit.