发明名称 |
CEMENT ADMIXTURE AND CEMENT COMPOSITION |
摘要 |
<p>The cement admixture of the present invention can improve the workability by displaying sufficient viscosity decreasing ability and initial dispersing ability even under a low temperature environment as well as high dispersing ability and dispersion retaining ability even in a high water reducing ratio range. The above-mentioned cement admixture comprises four components of a copolymer (A) containing a constituent unit (I) derived from the unsaturated (poly)alkylene glycol ether monomer (a) and a constituent unit (II) derived from a maleic acid monomer (b), a specific unsaturated (poly)alkylene glycol ether monomer (a), a non-polymerizable (poly)alkylene glycol (B) having no alkenyl group, and a polymer (C) having an oxyalkylene group or a polyoxyalkylene group and a carboxyl group, which is different from the copolymer (A).</p> |
申请公布号 |
EP1620371(A1) |
申请公布日期 |
2006.02.01 |
申请号 |
EP20040716351 |
申请日期 |
2004.03.02 |
申请人 |
NIPPON SHOKUBAI CO., LTD. |
发明人 |
YAMASHITA, AKIHIKO;TANAKA, HIROMICHI;UNO, TORU;ONDA, YOSHIYUKI |
分类号 |
C08G65/332;C08L71/02;(IPC1-7):C04B24/26;C08F290/06;C04B28/02;C08F20/28 |
主分类号 |
C08G65/332 |
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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