Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent
1983-12-29
1985-07-16
Novosad, Stephen J.
Hydraulic and earth engineering
Earth treatment or control
Chemical
166295, 521122, 523132, C08G 1876, E02B 312, E02D 312, E21B 33138
Patent
active
RE0319465
ABSTRACT:
Waterglass solutions are mixed with polyisocyanates and these emulsions are then left to harden in the formations. Introduction of the mixture into the formations which are required to be consolidated, e.g. deposits of coal, is mainly carried out by forcing the mixture under pressure into bore-holes in the formations. According to one variation of the process, the components of the mixture are introduced into the multi-chamber cartridges which are introduced into the bore-holes and then destroyed as the components are mixed. Certain additives such as accelerators, blowing agents, polyols, stabilizers and/or thixotropic agents are advantageous for the quality of the composite masses formed by hardening of the mixture.
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U.S. application Ser. No. 930,128.
Kubens Rolf
Mehesch Hans
Meyer Frank
Winkelmann Martin
Bayer Aktiengesellschaft
Bergwerksverband GmbH
Gil Joseph C.
Harsh Gene
Novosad Stephen J.
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