公开(公告)号：US20230285935A1

公开(公告)日：2023-09-14

申请号：US18013048

申请日：2021-07-13

Applicant: NIPPON SHOKUBAI CO., LTD.

Inventor： Yoshiro MITSUKAMI ,  Tatsuya YAMAGUCHI ,  Takaaki WADA ,  Setsu INOUE

IPC: B01J20/26 ,  B01J20/24 ,  B01J20/04 ,  B01J20/30 ,  A61L15/22 ,  A61L15/18 ,  A61L15/60

CPC classification number: B01J20/267 ,  A61L15/18 ,  A61L15/60 ,  A61L15/225 ,  B01J20/24 ,  B01J20/045 ,  B01J20/3021 ,  B01J20/3085

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.