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. 13, 2011
Filed:
Nov. 07, 2007
Applicants:
Norbert Herfert, Altenstadt, DE;
Martin Wendker, Wentorf, DE;
Hermann Josef Feise, Kleinniedesheim, DE;
Hanno Rüdiger Wolf, Heidelberg, DE;
Bill Chiang, Charlotte, NC (US);
Guy Thomas Woodrum, Midlothian, VA (US);
Inventors:
Norbert Herfert, Altenstadt, DE;
Martin Wendker, Wentorf, DE;
Hermann Josef Feise, Kleinniedesheim, DE;
Hanno Rüdiger Wolf, Heidelberg, DE;
Bill Chiang, Charlotte, NC (US);
Guy Thomas Woodrum, Midlothian, VA (US);
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 20/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A superabsorbent having superior permeability and conveying properties comprises a permeability enhancing agent and a cohesion control agent and has a free swell gel bed permeability of at least 15 Darcies and a Hausner ratio in the range of 1.18 to 1.34.