Patents by Inventor Koyo NOJIMA

Koyo NOJIMA 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).

  • RESIN DISPERSION COMPOSITION
    Publication number: 20230279256
    Abstract: The invention provides an aqueous dispersion prepared by dispersing in water an olefin-?, ?-unsaturated carboxylic acid copolymer having a relatively small amount of ?,?-unsaturated carboxylic acid by using ammonia, and provides a production method for the aqueous dispersion. Specifically, the aqueous dispersion is an aqueous dispersion composition of a copolymer comprising an ?,?-unsaturated carboxylic acid or an ester thereof as a constituent unit, the composition comprising ammonia, the copolymer having a heat of crystallization of -30 J/g or less, and the copolymer being present in an amount of 10 to 50 mass%.
    Type: Application
    Filed: July 13, 2021
    Publication date: September 7, 2023
    Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Ikumi KAKUTAKA, Koyo NOJIMA, Toshinari MIZUHASHI