| 发明名称 |
Prevention of subsurface seepage by acrylic acid polymers |
| 摘要 |
Porous substrata of small bodies of non-flowing waters are contacted with acrylic acid polymers, having at least 20 percent by weight acrylate, to retard excess water loss due to seepage.
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| 申请公布号 |
US3953975(A) |
申请公布日期 |
1976.05.04 |
| 申请号 |
US19750549266 |
申请日期 |
1975.02.12 |
| 申请人 |
NALCO CHEMICAL COMPANY |
发明人 |
BUSLER, WILLIAM R.;ROBINSON, DONALD G. |
| 分类号 |
E02D31/00;(IPC1-7):E02B3/02 |
主分类号 |
E02D31/00 |
| 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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