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. 08, 2025
Filed:
Mar. 27, 2020
Applicant:
Sumitomo Seika Chemicals Co., Ltd., Hyogo, JP;
Inventor:
Maoki Hama, Himeji, JP;
Assignee:
SUMITOMO SEIKA CHEMICALS CO., LTD., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/26 (2006.01); B01J 20/28 (2006.01);
U.S. Cl.
CPC ...
B01J 20/267 (2013.01); B01J 20/28016 (2013.01); B01J 2220/44 (2013.01);
Abstract
Provided are: a water-absorbent resin that has excellent heat resistance, even in a water-absorbed state; and a water-blocking material comprising the water-absorbent resin. The water-absorbent resin according to the present invention includes a crosslinked polymer of a water-soluble ethylenically unsaturated monomer, and has a gel-viscosity retention S of 0.5 or more as calculated by the following formula (I):
Hama, Maoki. (2025). Water-absorbing resin and water-blocking material (U.S. Patent No. 12269010). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12269010
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile