发明名称 |
WATERPROOF SEALING MAT, ESSENTIALLY COMPOSED OF A SUPPORTING LAYER, AND INTERMEDIATE LAYER OF EXPANDABLE CLAY, AND A COVERING LAYER |
摘要 |
<p>A waterproof sealing mat and a method of producing it are made available. The sealing mat is composed of a non-woven as supporting layer, an intermediate layer of expandable clay, preferably of sodium bentonite, and a covering layer which is preferably likewise composed of a non-woven, all three layers being sewn together in a needle loom in a conventional manner. When moistened, the bentonite swells and forms the waterproof layer. The waterproof sealing mat is used in particular in hydraulic and waste-disposal engineering. …<IMAGE>… </p> |
申请公布号 |
EP0278419(A3) |
申请公布日期 |
1989.03.29 |
申请号 |
EP19880101679 |
申请日期 |
1988.02.05 |
申请人 |
NAUE-FASERTECHNIK GMBH & CO. KG |
发明人 |
HEERTEN, GEORG, DR.;JOHANNSSEN, KARSTEN;MULLER, VOLKHARD |
分类号 |
E02B3/12;E02D31/00;(IPC1-7):E02D31/00 |
主分类号 |
E02B3/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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