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:
Feb. 19, 2019
Filed:
Oct. 21, 2016
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Uwe Stueven, Bad Soden, DE;
Matthias Weismantel, Jossgrund, DE;
Wilfried Heide, Freinsheim, DE;
Marco Krüger, Mannheim, DE;
Volker Seidl, Mannheim, DE;
Stefan Blei, Mannheim, DE;
Dennis Loesch, Altrip, DE;
Rüdiger Funk, Niedernhausen, DE;
Annemarie Hillebrecht, Künzell, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 222/20 (2006.01); A61L 15/60 (2006.01); C08F 2/34 (2006.01); C08F 220/06 (2006.01); A61L 15/24 (2006.01); B29B 9/10 (2006.01); C08F 222/10 (2006.01); C08F 222/38 (2006.01); B29K 33/04 (2006.01);
U.S. Cl.
CPC ...
C08F 222/10 (2013.01); A61L 15/24 (2013.01); A61L 15/60 (2013.01); B29B 9/10 (2013.01); C08F 2/34 (2013.01); C08F 220/06 (2013.01); B29K 2033/04 (2013.01); B29K 2995/0092 (2013.01); C08F 222/1006 (2013.01); C08F 222/385 (2013.01); C08F 2222/1026 (2013.01); C08F 2400/00 (2013.01); C08F 2500/24 (2013.01); Y10T 428/2982 (2015.01);
Abstract
A process for preparing water-absorbing polymer beads with high permeability by polymerizing droplets of a monomer solution, comprising monomers bearing acid groups, in a gas phase surrounding the droplets, wherein the monomer solution comprises polyvalent cations and the polymer beads have a mean diameter of at least 150 μm.