| 发明名称 |
Agents for and method of reducing the fluidity drop of hydraulic cement compositions and method of producing such agents |
| 摘要 |
Water-soluble vinyl copolymers with number average molecular weight 500-20000, having two specified repetition units at a specified molar ratio and a specified end group can serve as an effective agent for reducing a drop in the fluidity of hydraulic cement compositions.
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| 申请公布号 |
US5919881(A) |
申请公布日期 |
1999.07.06 |
| 申请号 |
US19970881047 |
申请日期 |
1997.06.25 |
| 申请人 |
TAKEMOTO YUSHI KABUSHIKI KAISHA |
发明人 |
KINOSHITA, MITSUO;MIURA, YOSHIMASA;ARASHIMA, TAKESHI;TAKAHASHI, TOMOO;SAITO, KAZUHIDE |
| 分类号 |
C04B24/26;C04B24/16;C04B28/00;C04B28/02;C04B103/40;C08F2/38;C08F216/14;C08F290/00;C08F290/06;C08L55/00;C08L71/00;C08L71/02;(IPC1-7):C08F228/02;C08F222/06;C08K3/00 |
主分类号 |
C04B24/26 |
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