MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617073122 A) filed by Seiko Kougyo Co. , Ltd. on June 12, 2026, for Method For Concentrating Or Drying Cellulose Nanofiber Dispersion.
Inventor includes Matsuo, Kosuke.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: Provided is a method for obtaining a concentrated or dried cellulose nanofiber product with which it is possible to obtain a redispersion having a dispersibility comparable to that of a cellulose nanofiber dispersion before concentration or drying. This method for concentrating or drying a cellulose nanofiber dispersion comprises: a step A for performing a pretreatment on a cellulose nanofiber dispersion by adding the following (1) and (2), wherein (1) is (1-1) and/or (1-2), (1-1) being an alkylammonium salt and an amphoteric surfactant, and (1-2) being an ethylene glycol, and (2) is a mixture of a higher fatty acid or higher fatty acid amide, and isopropyl alcohol; and a step B for, after the pretreatment, concentrating or drying the cellulose nanofiber dispersion by supplying the cellulose nanofiber dispersion to a two-roll mill and rotating the two-roll mill.
Disclaimer: Curated by HT Syndication.
