METHOD OF STRENGTHENING GEOLOGICAL FORMATIONS
METHOD OF STRENGTHENING GEOLOGICAL FORMATIONS The present invention relates to a method of strengthening geological formations in underground workings or mines by introducing reaction mixtures containing a polyisocyanate component a), a polyol component b) and optionally auxiliary agents and additiv...
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Main Authors | , |
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Format | Patent |
Language | English French |
Published |
26.09.1989
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Edition | 4 |
Subjects | |
Online Access | Get full text |
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Abstract | METHOD OF STRENGTHENING GEOLOGICAL FORMATIONS The present invention relates to a method of strengthening geological formations in underground workings or mines by introducing reaction mixtures containing a polyisocyanate component a), a polyol component b) and optionally auxiliary agents and additives c) into the formation which is required to be strengthened and reacting the mixtures to form polyurethanes, wherein polyol component b) contains mixtures of (i) organic polyhydroxyl compounds having a hydroxyl number of about 100 to 800 and (ii) monovalent alcohols having a molecular weight of 32 to about 600, component (ii) being present in an amount of about 0.01 to 20% by weight, based on the total quantity of component b). |
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AbstractList | METHOD OF STRENGTHENING GEOLOGICAL FORMATIONS The present invention relates to a method of strengthening geological formations in underground workings or mines by introducing reaction mixtures containing a polyisocyanate component a), a polyol component b) and optionally auxiliary agents and additives c) into the formation which is required to be strengthened and reacting the mixtures to form polyurethanes, wherein polyol component b) contains mixtures of (i) organic polyhydroxyl compounds having a hydroxyl number of about 100 to 800 and (ii) monovalent alcohols having a molecular weight of 32 to about 600, component (ii) being present in an amount of about 0.01 to 20% by weight, based on the total quantity of component b). |
Author | MANN, MAX KAPPS, MANFRED |
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DocumentTitleAlternate | METHODE DE CONSOLIDATION DE COUCHES GEOLOGIQUES |
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Snippet | METHOD OF STRENGTHENING GEOLOGICAL FORMATIONS The present invention relates to a method of strengthening geological formations in underground workings or mines... |
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SubjectTerms | ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES EARTH DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS GALLERIES HYDRAULIC ENGINEERING LARGE UNDERGROUND CHAMBERS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES SHAFTS SOIL SHIFTING THEIR PREPARATION OR CHEMICAL WORKING-UP TUNNELS UNDERGROUND OR UNDERWATER STRUCTURES |
Title | METHOD OF STRENGTHENING GEOLOGICAL FORMATIONS |
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