Patents by Inventor Yuma KOTO

Yuma KOTO 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 CONJUGATED DIENE-BASED POLYMER, POLYMER COMPOSITION, CROSS-LINKED PRODUCT, AND TIRE
    Publication number: 20220380506
    Abstract: A method for producing a modified conjugated diene-based polymer includes polymerizing a monomer including a conjugated diene compound in the presence of an alkali metal compound or an alkali earth metal compound to obtain a polymer having an active terminal; (a modification) reacting the polymer having an active terminal with a compound [M] having a plurality of hydrocarbyloxysilyl groups to obtain a modified polymer; and a mixing the modified polymer with at least one compound [C] selected from a compound [N] having one hydrocarbyloxysilyl group and an alcohol having 6 to 20 carbon atoms.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 1, 2022
    Applicant: ENEOS MATERIALS CORPORATION
    Inventors: Yuma KOTO, Keisuke WATANABE, Ken-ichi ITOU