Patents by Inventor Takenori SHIGE

Takenori SHIGE 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).

  • POLYVINYL ALCOHOL-BASED RESIN, METHOD FOR PRODUCING POLYVINYL ALCOHOL-BASED RESIN, DISPERSANT AND DISPERSANT FOR SUSPENSION POLYMERIZATION
    Publication number: 20220010043
    Abstract: An object of the present invention is to provide a PVA-based resin having a degree of saponification obtained in the middle stage of the reaction, that is, an average degree of saponification of 68 mol % to 85 mol %, a narrow degree of saponification distribution, and excellent dispersion stability. The present invention relates to a polyvinyl alcohol-based resin having an average degree of saponification of 68 mol % to 85 mol %, and a ΒΌ value width of 7.0 minutes or less in a degree of saponification distribution obtained by high performance liquid chromatogram measured under specific conditions.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 13, 2022
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yoshihito YAMAUCHI, Takenori SHIGE, Tadashi MURAKAMI