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:
Sep. 10, 2013
Filed:
Oct. 02, 2007
Applicants:
Dennis Loesch, Altrip, DE;
Matthias Weismantel, Jossgrund-Oberndorf, DE;
Marco Krüger, Mannheim, DE;
Antje Ziemer, Mannheim, DE;
Inventors:
Dennis Loesch, Altrip, DE;
Matthias Weismantel, Jossgrund-Oberndorf, DE;
Marco Krüger, Mannheim, DE;
Antje Ziemer, Mannheim, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 9/00 (2006.01); A61J 3/07 (2006.01); B29C 39/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for the production of water absorbent polymer particles by polymerizing drops, comprising at least one monomer in a gas phase surrounding the drops, wherein the drops are produced by surrounding a first monomer solution with a second monomer solution and polymerizing the second monomer solution to a higher cross-linked polymer than the first monomer solution.