发明名称 |
CEMENT DISPERSANT |
摘要 |
<p>The present invention relates to a cement dispersant, and an object thereof is to provide a cement dispersant having high water reducing property, low setting retardation and low concrete viscosity and taking also applicability into account. The cement dispersant comprises a polycarboxylic acid polymer formed by structural unit (I) composed of a reactive alcohol alkylene oxide adduct and structural unit (II) composed of a reactive dibasic acid, and preferably further structural unit (III) containing polyamide polyamine in the unit, wherein fumaric acid and/or a derivative thereof is used as a partial or main starting material of the structural unit (II). The cement dispersant is excellent in water reducing property, setting retardation and concrete viscosity.</p> |
申请公布号 |
EP2065349(A1) |
申请公布日期 |
2009.06.03 |
申请号 |
EP20070807282 |
申请日期 |
2007.09.13 |
申请人 |
TOHO CHEMICAL INDUSTRY CO., LTD. |
发明人 |
IKEDA, AKIRA;KOSHISAKA, SEIICHI;SUGA, AKIRA;OKADA, TOMOHISA |
分类号 |
C04B24/26;C04B103/40;C08F290/06;C08G65/332;C08G81/02 |
主分类号 |
C04B24/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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