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:
Apr. 14, 2025
Filed:
Jan. 12, 2020
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Rene Callot, Antwerp, BE;
Karl Possemiers, Antwerp, BE;
Ruediger Funk, Ludwigshafen, DE;
Marco Krueger, Ludwigshafen, DE;
Matthias Weismantel, Ludwigshafen, DE;
Juergen Schroeder, Ludwigshafen, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/18 (2005.12); A61F 13/53 (2005.12); B01J 20/26 (2005.12); B01J 20/285 (2005.12); C08F 2/04 (2005.12); C08F 6/00 (2005.12); C08F 20/04 (2005.12); F26B 17/02 (2005.12); F26B 17/04 (2005.12);
U.S. Cl.
CPC ...
C08F 2/18 (2012.12); A61F 13/53 (2012.12); B01J 20/267 (2012.12); B01J 20/285 (2012.12); C08F 2/04 (2012.12); C08F 6/008 (2012.12); C08F 20/04 (2012.12); F26B 17/023 (2012.12); F26B 17/04 (2012.12); A61F 2013/530481 (2012.12); B01J 2220/68 (2012.12);
Abstract
A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising drying of the resultant aqueous polymer gel in an air circulation belt dryer, grinding, classifying, and optionally thermal surface postcrosslinking, wherein the aqueous polymer gel is introduced into the air circulation belt dryer by means of an oscillating conveyor belt and that guide devices are located at the edges of the conveyor belt.