| 摘要 |
The description relates to a process for stabilising rock, e.g. in tunnelling and mining, by the injection of aqueous preparations of melamine resin and/or urea-formaldehyde condensates together with an acid curing agent. In the process, the curing agents used are aqueous solutions of alkali and/or ammonium bisulphate. The curing agent solutions may also contain additional auxiliaries and active substances like corrosion protection inhibitors, structuring agents and adhesion promoters. Preferred resin solutions for stabilising with these aqueous curing agents contain zeolith NaA and/or hydrosodalith to increase their usability, especially their shelf life.
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| 申请人 |
HENKEL KGAA, 4000 DUESSELDORF, DE;E. EPPLE & CO GMBH, 7000 STUTTGART, DE |
发明人 |
MUELLER, HEINZ, 4019 MONHEIM, DE;HEROLD, CLAUS-PETER, DR., 4020 METTMANN, DE;TAPAVICZA, STEPHAN VON, DR., 4006 ERKRATH, DE;EDEL, EDMUND, 7024 FILDERSTADT, DE |
