Patents by Inventor Yusaku ASAI

Yusaku ASAI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD FOR PRODUCING MODIFIED CELLULOSE FIBER, AND MODIFIED CELLULOSE FIBER
    Publication number: 20210230795
    Abstract: The present invention relates to a method for producing modified cellulose fibers having cellulose I crystal structure, comprising: step A: introducing Substituent Group A to cellulose fibers via an ether bond in a solvent comprising water in the presence of a base, and step B: introducing Substituent Group B to cellulose fibers via an ether bond in a solvent comprising water in the presence of a base, wherein the method includes the steps A and B concurrently, or in the order of the step A and then the step B. The cellulose fibers of the present invention obtained by the method for production of the present invention have favorable dispersibility in a hydrophobic medium and a controlled increase in viscosity.
    Type: Application
    Filed: June 11, 2019
    Publication date: July 29, 2021
    Applicant: KAO CORPORATION
    Inventors: Yutaka YOSHIDA, Shotaro SHIBATA, Haruka NAKAGAWA, Yoshiaki KUMAMOTO, Norihiro ITO, Yusaku ASAI