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:
Apr. 24, 2018
Filed:
Jul. 09, 2012
Applicants:
Markus Braun, Heidelberg, DE;
Matthias Weismantel, Jossgrund-Oberndorf, DE;
Inventors:
Markus Braun, Heidelberg, DE;
Matthias Weismantel, Jossgrund-Oberndorf, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 220/06 (2006.01); C08F 2/10 (2006.01); C08F 230/02 (2006.01); B01J 20/26 (2006.01); B01J 20/30 (2006.01); C08F 220/10 (2006.01); C08F 2/26 (2006.01); A61L 15/60 (2006.01); C08F 222/10 (2006.01);
U.S. Cl.
CPC ...
B01J 20/26 (2013.01); A61L 15/60 (2013.01); B01J 20/261 (2013.01); B01J 20/267 (2013.01); B01J 20/30 (2013.01); C08F 2/10 (2013.01); C08F 2/26 (2013.01); C08F 220/06 (2013.01); C08F 220/10 (2013.01); B01J 2220/68 (2013.01); C08F 222/1006 (2013.01); C08F 230/02 (2013.01);
Abstract
A process for producing water-absorbing polymer particles with high free swell rate by polymerizing a monomer solution or suspension comprising an ethylenically unsaturated monomer bearing acid groups, a crosslinker, an initiator and an ethylenically unsaturated ionic surfactant.