Patents Assigned to Denki Kagaku Koygo Kabushiki Kaisha
  • Cement admixture and cement composition
    Patent number: 5192366
    Abstract: A cement admixture comprising a polymer latex and a water reducing agent as effective components, wherein the polymer latex comprises a copolymer of monomers comprising ethylene, vinyl acetate and an acrylic ester, and an emulsion stabilizer, said emulsion stabilizer being a surfactant.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: March 9, 1993
    Assignee: Denki Kagaku Koygo Kabushiki Kaisha
    Inventors: Asaaki Nishioka, Etsuo Sakai, Tomohiro Kaneko, Masaki Ogasawara