| 发明名称 |
SET RETARDING COMPOUNDS FOR USE IN CEMENT SLURRIES |
| 摘要 |
<p>OF TEE DISCLOSURE Polymers which are the reaction product of N-aminoethylpiperazine and a dihalo or epoxyhalo compound are subsequently phosphonomethylated to provide products which are useful as cement set retarders.</p> |
| 申请公布号 |
CA1223280(A) |
申请公布日期 |
1987.06.23 |
| 申请号 |
CA19840461339 |
申请日期 |
1984.08.20 |
| 申请人 |
DOW CHEMICAL COMPANY (THE) |
发明人 |
DRUMP, DRUCE K.;WILSON, DAVID A. |
| 分类号 |
C04B24/12;(IPC1-7):C04B24/12 |
主分类号 |
C04B24/12 |
| 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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