E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/138 (2006.01) C08J 3/03 (2006.01) C08K 3/34 (2006.01) C09K 8/508 (2006.01) C09K 17/00 (2006.01) C09K 17/40 (2006.01) C09K 17/48 (2006.01)
Patent
CA 2049037
The invention relates to aqueous preparations of acid-catalyzed melamine resins and/or urea-formaldehyde condensates which contain an addition of zeolite NaA and/or hydroxysodalite to increase their usefulness. The preparations in question are particularly suitable for use in the stabilization of rock and/or plugging of cavities, for example in tunneling and mining. Accordingly, the inventions also relates to a process for stabilizing rock, for example in tunneling and mining, by injection of corresponding preparations together with an acidic catalyst.
Enter the French Abstract here.Cette invention concerne des préparations aqueuses de résines de mélamine catalysées par un acide et/ou des condensats urée-formaldéhyde, renfermant en plus une zéolite NaA et/ou une hydroxysodalite afin d'accroître leur utilité . Ces préparations sont particulièrement utiles pour stabiliser des roches et/ou des colmatants de cavité, par exemple, pour l'exploitation minière et le percement de tunnels. Cette invention concerne également un procédé de stabilisation de la roche, par exemple, lors du percement de tunnels ou de l'exploitation minière, par injection simultanée des préparations susmentionnées et d'un catalyseur acide.
Edel Edmund
Herold Claus-Peter
Mueller Heinz
von Tapavicza Stephan
Borden Ladner Gervais Llp
Cognis Deutschland Gmbh & Co. Kg
E. Epple & Co. Gmbh
Henkel Kommanditgesellschaft Auf Aktien
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