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:
Dec. 05, 2017
Filed:
May. 07, 2015
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/26 (2006.01); C08F 220/06 (2006.01); A61L 15/24 (2006.01); A61L 15/60 (2006.01); B01J 20/28 (2006.01); C08J 3/24 (2006.01); C08F 2/10 (2006.01); C08F 222/10 (2006.01);
U.S. Cl.
CPC ...
B01J 20/261 (2013.01); A61L 15/24 (2013.01); A61L 15/60 (2013.01); B01J 20/267 (2013.01); B01J 20/28004 (2013.01); C08F 220/06 (2013.01); C08J 3/245 (2013.01); C08F 2/10 (2013.01); C08F 2222/1026 (2013.01); C08J 2333/02 (2013.01);
Abstract
Crosslinked polymer particles having a) a proportion of particles having a particle size of 150 to 300 μm of at least 20% by weight, b) a free swell rate of the entirety of the polymer particles FSRof at least 0.25 g/g·s, c) a difference ΔFSR of at least 0.15, d) a centrifuge retention capacity CRC of at least 25.0 g/g, and e) a permeability of the swollen gel bed SFC of at least 90×10cm·s/g are disclosed.