{"number":"US12702967B2","kindCode":"B2","documentType":"grant","title":{"original":"Particulate water-absorbing agent and method for producing the same","english":"Particulate water-absorbing agent and method for producing the same"},"abstract":{"original":"[Problem] In an embodiment involving addition of a chelating agent in an upstream process of the process for production, such as the polymerization step, the residual ratio of the chelating agent in the final product, a particulate water-absorbing agent, is improved. [Solution] A particulate water-absorbing agent having a poly(meth)acrylic acid (salt)-based water-absorbing resin as a main component, containing a chelating agent having a nitrogen atom and an inorganic reducing agent having a sulfur atom, wherein the particulate water-absorbing agent has a chelating agent ratio of 0.8 to 1.8, as…","english":"[Problem] In an embodiment involving addition of a chelating agent in an upstream process of the process for production, such as the polymerization step, the residual ratio of the chelating agent in the final product, a particulate water-absorbing agent, is improved. [Solution] A particulate water-absorbing agent having a poly(meth)acrylic acid (salt)-based water-absorbing resin as a main component, containing a chelating agent having a nitrogen atom and an inorganic reducing agent having a sulfur atom, wherein the particulate water-absorbing agent has a chelating agent ratio of 0.8 to 1.8, as…"},"applicants":["NIPPON SHOKUBAI CO., LTD."],"inventors":["Satoshi MATSUMOTO","Kanako TSURU","Taishi KOBAYASHI","Daisuke TAKAGI","Kazushi TORII"],"filingDate":"2022-05-03","publicationDate":"2026-08-11","grantDate":"2026-08-11","verifiedWithOffice":true,"pdfUrl":"https://downloadpatent.com/pdf/US12702967B2.pdf","pages":{"en":"https://downloadpatent.com/patent/US12702967B2","zh-Hant":"https://downloadpatent.com/zh-Hant/patent/US12702967B2","ja":"https://downloadpatent.com/ja/patent/US12702967B2"}}