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. 28, 2013
Filed:
Mar. 23, 2011
Thomas Daniel, Waldsee, DE;
Marco Krüger, Mannheim, DE;
Karin Flore, Floersheim-Dalsheim, DE;
Stefan Blei, Mannheim, DE;
Uwe Stueven, Bad Soden, DE;
Norbert Herfert, Altenstadt, DE;
Michael A. Mitchell, Waxhaw, NC (US);
Thomas Daniel, Waldsee, DE;
Marco Krüger, Mannheim, DE;
Karin Flore, Floersheim-Dalsheim, DE;
Stefan Blei, Mannheim, DE;
Uwe Stueven, Bad Soden, DE;
Norbert Herfert, Altenstadt, DE;
Michael A. Mitchell, Waxhaw, NC (US);
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to a process for producing water-absorbent polymer particles by polymerizing droplets of a monomer solution in a surrounding heated gas phase and flowing the gas cocurrent through the polymerization chamber, which comprises thermal postcrosslinking in the presence of steam.