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:
Nov. 18, 2014
Filed:
May. 31, 2012
Yvonne Hagen, Waldsee, DE;
Klaus Dieter Hörner, Lampertheim, DE;
Axel Meyer, Schwalbach, DE;
Robin Mckiernan, Mason, OH (US);
Carolyn A. Spitzmueller, Cincinnati, OH (US);
Yvonne Hagen, Waldsee, DE;
Klaus Dieter Hörner, Lampertheim, DE;
Axel Meyer, Schwalbach, DE;
Robin McKiernan, Mason, OH (US);
Carolyn A. Spitzmueller, Cincinnati, OH (US);
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to a process for producing a water-absorbing material by coating water-absorbing polymer particles with a film-forming polyurethane and silica, heat treating the coated particles and coating the heat-treated particles with pyrogenic hydrophilic silica. The invention further relates to the water-absorbing material obtainable according to the process of the invention. The water-absorbing material has improved wicking ability (FHA) and core shell saline flow conductivity (CS-SFC).