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:
Aug. 04, 2026
Filed:
Apr. 30, 2020
Kimberly-clark Worldwide, Inc., Neenah, WI (US);
Mcmaster University, Hamilton, CA;
Xuedong Song, Alpharetta, GA (US);
Kaiyuan Yang, Cumming, GA (US);
Todd Ryan Hoare, Ancaster, CA;
Zohreh Jomeh Farsangi, Hamilton, CA;
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
MCMASTER UNIVERSITY, Hamilton, CA;
Abstract
Described herein are superabsorbent polymers that are made of copolymers of charged monomer and neutral monomers, where the neutral monomers are alkyl or aryl end-capped neutral and hydrophilic monomers that lack free hydroxyl groups and have a water solubility of at least 200 mg/mL. The copolymer-based superabsorbent polymers have significantly improved absorbency under load. The compositions and methods described herein are useful in a variety of absorbent products.