| 发明名称 |
PROCESS FOR STRENGTHENING AND SEALING GEOLOGICAL FORMATIONS |
| 摘要 |
<p>Mo-2899 LeA 24,432 PROCESS FOR STRENGTHENING AND SEALING GEOLOGICAL FORMATIONS The present invention is directed to a process for strengthening and sealing geological formations which are moist or contain water, in particular loose stone, by the injection of a mixture which reacts to form polyurethane, characterized in that a polyisocyanate component is injected before injection of the reaction mixture. Mo-2899 Le A 24432</p> |
| 申请公布号 |
CA1268935(A) |
申请公布日期 |
1990.05.15 |
| 申请号 |
CA19870531990 |
申请日期 |
1987.03.13 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT;BERGWERKSVERBAND GMBH. |
发明人 |
MANN, MAX;KAPPS, MANFRED;MEYER, FRANK;MEHESCH, HANS;CORNELY, WOLFGANG;MAIDL, BERNHARD;STEIN, DIETRICH;GERDES, KNUD |
| 分类号 |
C09K17/00;C09K8/502;C09K8/508;C09K17/30;E21D11/00;E21D11/38;E21D20/00;(IPC1-7):E02D3/12 |
主分类号 |
C09K17/00 |
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