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. 29, 2011
Filed:
Aug. 31, 2006
Matthias Weismantel, Jossgrund-Oberndorf, DE;
Michael DE Marco, Weinheim, DE;
Andreas Daiss, Deidesheim, DE;
Dominicus Van Esbroeck, Nanjing, CN;
Karl J. Possemiers, Gravenwezel, BE;
Ronny DE Kaey, Mortsel, BE;
Leo Van Miert, Kapellen, BE;
Matthias Weismantel, Jossgrund-Oberndorf, DE;
Michael de Marco, Weinheim, DE;
Andreas Daiss, Deidesheim, DE;
Dominicus van Esbroeck, Nanjing, CN;
Karl J. Possemiers, Gravenwezel, BE;
Ronny De Kaey, Mortsel, BE;
Leo Van Miert, Kapellen, BE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to a process for continuously preparing water-absorbing polymers by mixing a monomer solution with at least one crosslinker and polymerizing the resulting mixture, wherein the residence time of the mixture between the addition of the at least one crosslinker and the entry into the polymerization reactor is less than 180 seconds, and also to an apparatus for performing the process.