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:
Mar. 17, 2026
Filed:
Jul. 13, 2021
Nippon Shokubai Co., Ltd., Osaka, JP;
Yoshiro Mitsukami, Himeji, JP;
Tatsuya Yamaguchi, Himeji, JP;
Takaaki Wada, Suita, JP;
Setsu Inoue, Himeji, JP;
NIPPON SHOKUBAI CO., LTD., Osaka, JP;
Abstract
Provided are a water-absorbing agent composition of high quality (and stable quality) that can be produced without a decrease in productivity and is not colored even in a production process (or under production conditions) under high temperature conditions (under the condition of heating at 100° C. or higher), even when a polysaccharide is used as a sustainable raw material for at least part of the water-absorbing agent composition, and a method for producing the water-absorbing agent composition. The water-absorbing agent composition includes: a polyacrylic acid (salt)-based water-absorbing resin; a polysaccharide, and a reducing agent. The water-absorbing agent composition is surface-crosslinked, contains the polysaccharide in an amount of 10 mass % or more and contains the reducing agent in an amount of 10 ppm to 10000 ppm, and has a degree of coloration (YI value) of 60 or less.