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:
Mar. 05, 2013
Filed:
Feb. 10, 2012
Uwe Stueven, Bad Soden, DE;
Matthias Weismantel, Jossgrund-Oberndorf, DE;
Wilfried Heide, Freinsheim, DE;
Marco Krüger, Mannheim, DE;
Volker Seidl, Mannheim, DE;
Stefan Blei, Mannheim, DE;
Dennis Lösch, Altrip, DE;
Rüdiger Funk, Niedernhausen, DE;
Annemarie Hillebrecht, Künzell, DE;
Uwe Stueven, Bad Soden, DE;
Matthias Weismantel, Jossgrund-Oberndorf, DE;
Wilfried Heide, Freinsheim, DE;
Marco Krüger, Mannheim, DE;
Volker Seidl, Mannheim, DE;
Stefan Blei, Mannheim, DE;
Dennis Lösch, Altrip, DE;
Rüdiger Funk, Niedernhausen, DE;
Annemarie Hillebrecht, Künzell, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for preparing postcrosslinked water-absorbing polymer beads with high absorption by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, wherein the solids content of the monomer solution is at least 35% by weight and the polymer beads have a mean diameter of at least 150 μm.