发明授权
- 专利标题： Durability improving agent and cement composition
- 专利标题（中）： 耐久性改善剂和水泥组成
-
申请号： US13121846申请日： 2010-05-13
-
公开(公告)号： US08674058B2公开(公告)日： 2014-03-18
- 发明人: Toyoharu Nawa , Hironobu Nishi , Susumu Hashizume , Kazutoshi Toda , Jun Kakutou , Hiroshi Ohshima , Syou Suzuki
- 申请人： Toyoharu Nawa , Hironobu Nishi , Susumu Hashizume , Kazutoshi Toda , Jun Kakutou , Hiroshi Ohshima , Syou Suzuki
- 申请人地址： JP Sapporo-shi JP Tokyo JP Tokyo
- 专利权人： National University Corporation Hokkaido University,Flowric Co., Ltd.,Miyoshi Oil & Fat Co., Ltd.
- 当前专利权人： National University Corporation Hokkaido University,Flowric Co., Ltd.,Miyoshi Oil & Fat Co., Ltd.
- 当前专利权人地址： JP Sapporo-shi JP Tokyo JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2009-119070 20090515
- 国际申请： PCT/JP2010/058106 WO 20100513
- 国际公布： WO2010/131707 WO 20101118
- 主分类号： C08G61/02
- IPC分类号： C08G61/02 ; C08G61/04 ; C08G61/00 ; C08G65/34
摘要：
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.
公开/授权文献
- US20120097075A1 DURABILITY IMPROVING AGENT AND CEMENT COMPOSITION 公开/授权日：2012-04-26
信息查询
