ZWEIKAMMERPATRONE ZUR VERFESTIGUNG VON GESTEIN ODER KOHLE
A two-compartment pierceable cartridge adapted for reinforcing or strengthening a stone or coal wall by insertion into a hole that had been bored into the wall, one compartment of which contains a polyisocyanate of diphenylmethane, and the other compartment of which contains a mixture of a polyether...
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Main Authors | , , , |
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Format | Patent |
Language | German |
Published |
03.04.1975
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Edition | 2 |
Subjects | |
Online Access | Get full text |
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Summary: | A two-compartment pierceable cartridge adapted for reinforcing or strengthening a stone or coal wall by insertion into a hole that had been bored into the wall, one compartment of which contains a polyisocyanate of diphenylmethane, and the other compartment of which contains a mixture of a polyetherglycol having a hydroxyl number between 200 and 400, between 10 and 20 percent by weight of a plasticizer, and between 0.3 and 5.0 percent by weight of water. When the cartridge is broken up and its contents are mixed, a foamed polyurethane resin is formed in situ which plugs the bored hole and thereby reinforces the wall. |
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Bibliography: | Application Number: DE19732345913 |