Patents Assigned to FLOWRIC CO., LTD.
  • Durability improving agent and cement composition
    Patent number: 8674058
    Abstract: It is an object of the present invention to provide a durability improving agent for a cement composition that improves the freezing-thawing resistance of the cement composition and also exhibits a sufficient shrinkage reducing performance as well, and a cement composition including such a durability improving agent. Specifically, the present invention provides a durability improving agent for a cement composition, characterized by comprising a hydrocarbon-based compound having an average molecular weight of 150 to 600 and a pour point of 20° C. or less as an active ingredient, and a cement composition including such durability improving agent.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: March 18, 2014
    Assignees: National University Corporation Hokkaido University, Flowric Co., Ltd., Miyoshi Oil & Fat Co., Ltd.
    Inventors: Toyoharu Nawa, Hironobu Nishi, Susumu Hashizume, Kazutoshi Toda, Jun Kakutou, Hiroshi Ohshima, Syou Suzuki
  • DURABILITY IMPROVING AGENT AND CEMENT COMPOSITION
    Publication number: 20120097075
    Abstract: It is an object of the present invention to provide a durability improving agent for a cement composition that improves the freezing-thawing resistance of the cement composition and also exhibits a sufficient shrinkage reducing performance as well, and a cement composition including such a durability improving agent. Specifically, the present invention provides a durability improving agent for a cement composition, characterized by comprising a hydrocarbon-based compound having an average molecular weight of 150 to 600 and a pour point of 20° C. or less as an active ingredient, and a cement composition including such durability improving agent.
    Type: Application
    Filed: May 13, 2010
    Publication date: April 26, 2012
    Applicants: NAT. UNIV. CORP. HOKKAIDO UNIV., MIYOSHI OIL & FAT CO., LTD., FLOWRIC CO., LTD.
    Inventors: Toyoharu Nawa, Hironobu Nishi, Susumu Hashizume, Kazutoshi Toda, Jun Kakutou, Hiroshi Ohshima, Syou Suzuki