ES2239214T3 - A MULTICAPA SEALED CARPET. - Google Patents

A MULTICAPA SEALED CARPET.

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Publication number
ES2239214T3
ES2239214T3 ES02425614T ES02425614T ES2239214T3 ES 2239214 T3 ES2239214 T3 ES 2239214T3 ES 02425614 T ES02425614 T ES 02425614T ES 02425614 T ES02425614 T ES 02425614T ES 2239214 T3 ES2239214 T3 ES 2239214T3
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ES
Spain
Prior art keywords
layer
sealing mat
layers
mat according
inflatable
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Expired - Lifetime
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ES02425614T
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Spanish (es)
Inventor
Cesare Cerutti
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Cidieffe Srl
Cidieffe Srl
Original Assignee
Cidieffe Srl
Cidieffe Srl
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Filing date
Publication date
Application filed by Cidieffe Srl, Cidieffe Srl filed Critical Cidieffe Srl
Application granted granted Critical
Publication of ES2239214T3 publication Critical patent/ES2239214T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/002—Ground foundation measures for protecting the soil or subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/004—Sealing liners
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water

Abstract

A multilayer sealing mat (1) comprises a substrate supporting layer (2), a cover layer (4) joined to the former through a needling process, and an interlayer of a swellable material (3) disposed between the supporting and cover layers. At least one of the supporting and cover layers is of an at least partially biodegradable material.

Description

Una alfombra de sellado multicapa.A multi-layer sealing mat.

La presente invención se refiere a un artículo en forma de alfombra, y más precisamente a una alfombra multicapa particularmente adaptada para hacer impermeables superficies del suelo que forman las superficies planas inferiores y las superficies inclinadas de contenedores de basuras, pilas de almacenamiento, canales de irrigación, cimientos de edificios y otros trabajos.The present invention relates to an article in carpet shape, and more precisely to a multilayer carpet particularly adapted to make waterproof surfaces of the soil that forms the lower flat surfaces and the inclined surfaces of garbage containers, batteries of storage, irrigation canals, building foundations and other works.

En la actualidad, la impermeabilización de estructuras asentadas bajo tierra y sometidas al ataque químico del nivel freático tales como cimientos, aparcamientos subterráneos, túneles, metros, ferrocarriles subterráneos, muros de contención y similares se han realizado con alfombras de sellado que incorporan bentonita entre dos capas de soporte de telas tejidas y/o no tejidas: estas telas sólo tienen el propósito de soportar las tensiones mecánicas y/o los ataques químicos, véase por ejemplo el documento EP 0 278 419 que describe una alfombra que comprende dos capas con un material en sándwich hinchable uniformemente entre ellas y las tres capas cosidas juntas.At present, the waterproofing of structures seated underground and subjected to chemical attack by water table such as foundations, underground parking, tunnels, meters, underground railways, retaining walls and Similar have been made with sealing rugs that incorporate Bentonite between two layers of woven fabric support and / or not woven: these fabrics are only intended to withstand mechanical stresses and / or chemical attacks, see for example the EP 0 278 419 describing a carpet comprising two layers with a uniformly inflatable sandwich material between they and the three layers sewn together.

El documento DE 198 58 180 describe una alfombra de sellado que comprende una capa de soporte, una capa de cobertura, y una capa polvorienta o granular de arcilla hinchable dispuesta entre dichas dos capas que se unen una a la otra por elementos de conexión adicionales tales como costuras paralelas dispuestas de modo que la distancia entra dichas dos capas se mantiene sobre toda la alfombra de sellado.Document DE 198 58 180 describes a carpet sealing comprising a support layer, a layer of cover, and a dusty or granular layer of inflatable clay arranged between said two layers that bind to each other by additional connection elements such as parallel seams arranged so that the distance between said two layers is keeps over the entire sealing mat.

Entre los materiales hinchables, se conoce el uso de alfombras de sellado de geocompuestos basadas en bentonita activada por sodio con excelentes propiedades de impermeabilización y resistencia mecánica. En contacto con el agua o la humedad del suelo, la bentonita de sodio natural se hidrata y se convierte en un gel impermeable que puede expandirse más de 16 veces su volumen inicial e incrementar su peso hasta 5 veces mientras permanece en la condición de gel.Among inflatable materials, the use is known of bentonite-based geocomposite sealing mats activated by sodium with excellent waterproofing properties and mechanical resistance. In contact with water or moisture soil, the natural sodium bentonite is hydrated and becomes a waterproof gel that can expand more than 16 times its volume initial and increase your weight up to 5 times while remaining in the gel condition

Sin embargo, en muchas aplicaciones las conocidas alfombras de sellado de bentonita no se adhieren o fijan satisfactoriamente a los materiales con los que están en contacto. Por ejemplo, en el caso de estructuras de cemento, una adhesión del cemento al material hinchable es una exigencia prioritaria para prevenir la formación de canales a lo largo de los cuales podrían fluir líquidos, puesto que la capa de cobertura se degrada y permitiría al material hinchable expandirse dentro de las irregularidades del cemento. El documento DE A 42 21 329 describe una alfombra de sellado multicapa que comprende: una capa de soporte de substrato y una capa de cobertura unidas una a la otra a lo largo de costuras o puntos longitudinales, y una capa intermedia de un material hinchable dispuesto entre dichas dos capas, siendo al menos una de dichas capas de soporte y de cobertura de un material al menos parcialmente biodegradable. Para prevenir desplazamientos del material hinchable que podrían crear vacíos y engrosamiento de áreas, se usa un material de soporte poroso adicional para retener el material hinchable en su lugar. Además puesto que la biodegradabilidad de la capa superior es bastante pobre, se practican cortes para exponer el material hinchable a la acción del agua.However, in many applications the known Bentonite sealing mats do not adhere or fix satisfactorily to the materials with which they are in contact. For example, in the case of cement structures, an adhesion of cement to the inflatable material is a priority requirement for prevent the formation of channels along which they could fluid flow, since the cover layer degrades and would allow the inflatable material to expand within the cement irregularities. Document DE A 42 21 329 describes a multi-layer sealing mat comprising: a layer of substrate support and a cover layer attached to each other to along seams or longitudinal points, and an intermediate layer of an inflatable material arranged between said two layers, being at least one of said support and cover layers of a at least partially biodegradable material. To prevent displacements of the inflatable material that could create gaps and thickening of areas, a porous support material is used additional to hold the inflatable material in place. further since the biodegradability of the upper layer is quite poor, cuts are made to expose the inflatable material to the water action.

Por consiguiente, un objeto de la presente invención es superar las limitaciones y desventajas de la técnica anterior y más precisamente proporcionar una estructura que contenga bentonita y que interaccione activamente con los materiales con los cuales se pone en contacto.Therefore, an object of the present invention is to overcome the limitations and disadvantages of the technique above and more precisely provide a structure that contain bentonite and actively interact with materials with which it contacts.

Estos objetos se consiguen a través de la presente invención, que consta de una alfombra de sellado multicapa como se reivindica en la reivindicación 1. Características ventajosas adicionales se describen en las reivindicaciones adjuntas.These objects are achieved through the present invention, consisting of a multi-layer sealing mat as claimed in claim 1. Features Additional advantages are described in the claims. attached.

De acuerdo con la presente invención se usa una combinación de materiales de contención y de soporte, que incorporan al menos una capa de material hinchable, en la que al menos alguna de las capas se aplica, al menos parcialmente, a través de materiales (bio)degradables.In accordance with the present invention a combination of containment and support materials, which incorporate at least one layer of inflatable material, in which at least some of the layers apply, at least partially, to through degradable (bio) materials.

La presente invención se describirá a continuación en referencia a los dibujos adjuntos que ilustran formas de realización no limitantes, en las que:The present invention will be described in below in reference to the accompanying drawings that illustrate non-limiting embodiments, in which:

La Figura 1 es una vista esquemática en sección transversal que ilustra la estructura de una alfombra de sellado impermeable de acuerdo a la invención;Figure 1 is a schematic sectional view. cross section illustrating the structure of a sealing mat waterproof according to the invention;

las Figuras 2, 3 y 4 muestran rollos de alfombra de sellado de acuerdo a la invención en tres configuraciones diferentes;Figures 2, 3 and 4 show carpet rolls sealing according to the invention in three configurations different;

la Figura 5 ilustra un procedimiento para fabricar una alfombra de sellado de acuerdo a la presente invención; yFigure 5 illustrates a procedure for manufacture a sealing mat according to this invention; Y

la Figura 6 ilustra un procedimiento para fabricar una alfombra de sellado de acuerdo a la presente invención y que comprenda cinco capas.Figure 6 illustrates a procedure for manufacture a sealing mat according to the present invention and that includes five layers.

En todas las figuras, las partes substancialmente equivalentes o similares se han designado por las mismas referencias.In all figures, the parties substantially equivalent or similar have been designated by them references.

Con referencia a la Figura 1, una alfombra de sellado 1 de acuerdo a la presente invención comprende una capa de substrato 2, una capa intermedia 3 de un material capaz de hincharse, particularmente en forma de gránulos, y una capa de cobertura 4. Las capas 2, 3 y 4 se unen mediante técnicas de cosido, que forman porciones "puntadas" designadas por la referencia 10.With reference to Figure 1, a carpet of sealed 1 according to the present invention comprises a layer of substrate 2, an intermediate layer 3 of a material capable of swelling, particularly in the form of granules, and a layer of Coverage 4. Layers 2, 3 and 4 are joined by techniques of sewn, which form "stitch" portions designated by the reference 10.

Preferiblemente, la capa de soporte de substrato 2 se hace de una tela no tejida cosida que consta de fibras sintéticas, tales como por ejemplo polipropileno y/o poliéster y/o polietileno y/o poliamida.Preferably, the substrate support layer 2 is made of a sewn nonwoven fabric consisting of fibers synthetics, such as polypropylene and / or polyester and / or polyethylene and / or polyamide.

La capa intermedia hinchable 3 comprende preferiblemente arcilla o bentonita (en forma de bentonita en polvo o granular con una alta capacidad de hinchamiento).The inflatable intermediate layer 3 comprises preferably clay or bentonite (in the form of bentonite powder or granular with a high swelling capacity).

La capa de cobertura 4 consta de un material biodegradable seleccionado entre papeles, cartones ondulados y películas solubles en agua, telas no tejidas de fibras degradables sintéticas o naturales.The cover layer 4 consists of a material biodegradable selected among papers, corrugated cardboard and water soluble films, nonwoven fabrics of degradable fibers synthetic or natural

De acuerdo a una forma de realización alternativa, la capa de cobertura 2 puede ser también de un material biodegradable.According to an embodiment alternatively, the coverage layer 2 can also be of a biodegradable material

Ventajosamente, la capa de cobertura biodegradable 4 se posiciona en contacto con el suelo o la plancha para protegerla. Después de que se pone en contacto con el agua, esta capa se degrada y se disuelve permitiendo de ese modo a la bentonita o a otro material hinchable de la capa intermedia 3 extenderse y llenar los huecos e intersticios, y de ese modo la bentonita (o en general el material hinchable) se libera de la capa de soporte de contención expandiéndose rápidamente y sellando eficazmente el fondo.Advantageously, the coverage layer Biodegradable 4 is positioned in contact with the floor or the iron to protect her After it gets in contact with the water, this layer degrades and dissolves thereby allowing the bentonite or other inflatable material of intermediate layer 3 extend and fill the gaps and interstices, and thus the Bentonite (or in general the inflatable material) is released from the layer of containment support expanding rapidly and sealing Effectively the bottom.

En la forma de realización ilustrada en la Figura 2, la alfombra se obtiene en forma de un rollo de material con una costura periférica cerrando lateralmente el material hinchable y en los extremos de la alfombra. Más precisamente, los bordes periféricos de las bandas de la alfombra se cierran por una costura 10 de los bordes mediante una técnica de cosido. Este cosido previene que la bentonita granular o en polvo se disperse durante el manejo de la alfombra de manera que asegura su integridad cuando se extiende. Esta costura de cierre se obtiene cosiendo sólo las bandas de las capas 2 y 4 (y de las capas 5 y 2 y 4 sólo lo ilustrado más abajo en otra forma de realización de la invención) sin la presencia de la bentonita entre ellos. Las dimensiones de las bandas cosidas comprenden desde 5 a 500 mm. Una costura transversal 11 se realiza adicionalmente al principio y al final del rollo de alfombra para obtener una contención completa del material hinchable dentro de la alfombra.In the embodiment illustrated in Figure 2, the carpet is obtained in the form of a roll of material with a peripheral seam closing the inflatable material laterally and in The ends of the carpet. More precisely, the edges Peripherals of the carpet bands are closed by a seam 10 of the edges by a sewing technique. This sewn prevents granular or powdered bentonite from dispersing during carpet handling so as to ensure its integrity when extends. This closing seam is obtained by sewing only the bands of layers 2 and 4 (and layers 5 and 2 and 4 only what illustrated below in another embodiment of the invention) without the presence of bentonite among them. The dimensions of the sewn bands range from 5 to 500 mm. A seam transversal 11 is additionally performed at the beginning and end of the carpet roll to obtain complete containment of the inflatable material inside the carpet.

Ventajosamente, como se ilustra en las Figuras 3 y 4, otras bandas unidas mediante cosido se proporcionan (o se pueden proporcionar), en particular los puntos longitudinales indicados por 12 y los puntos transversales indicados por 13. Esta forma de alfombras de sellado multicapa o compuestas se obtiene con elementos adjuntos generalmente rectangulares, en los que el material hinchable 3 no puede desplazarse lateralmente. Las alfombras de sellado pueden ser, por ejemplo, en forma de trozos cuadrados que tengan tamaños comprendidos entre 60x60 cm y 150x150 cm, incluso con forma rectangular, o respectivamente como bandas enrolladas o en bobinas en contenedores con tamaños entre 5 cm y 30 cm.Advantageously, as illustrated in Figures 3 and 4, other bands sewn together are provided (or can provide), in particular the longitudinal points indicated by 12 and the transverse points indicated by 13. This Multi-layer or composite sealing carpet shape is obtained with generally rectangular attached elements, in which the inflatable material 3 cannot move laterally. The sealing rugs can be, for example, in the form of pieces squares that have sizes between 60x60 cm and 150x150 cm, even with rectangular shape, or respectively as bands rolled or in coils in containers with sizes between 5 cm and 30 cm.

De ese modo, se asegura una mejora generalizada de la contención del material hinchable, particularmente cuando la alfombra de sellado es cortada para colocarla.This ensures a general improvement. of containment of the inflatable material, particularly when the Sealing mat is cut to place it.

La Figura 5 ilustra esquemáticamente la fabricación de una alfombra de sellado que comprende un rollo 22 de un material de soporte de substrato 2, un rollo 24 de un material de cobertura 4, y un dispensador 23 de un material hinchable 3. Los rollos de material 2 y 4 se soportan adecuadamente en la cadena de producción y se desenrollan mediante un dispositivo de tirado no ilustrado. El material 3 se deposita por gravedad y con una distribución deseada o apropiada sobre la banda de avance 2, y más tarde el sándwich así formado pasa a través de un telar de agujas 8 con una o más tablas para unir las capas de acuerdo a las configuraciones ilustradas en las Figuras 2-4 o de acuerdo a otras configuraciones.Figure 5 schematically illustrates the manufacture of a sealing mat comprising a roll 22 of a substrate support material 2, a roll 24 of a material of cover 4, and a dispenser 23 of an inflatable material 3. The rolls of material 2 and 4 are properly supported on the chain of production and unwind using a non-pulling device illustrated. Material 3 is deposited by gravity and with a desired or appropriate distribution over feed belt 2, and more late the sandwich thus formed passes through a needle loom 8 with one or more tables to join the layers according to the configurations illustrated in Figures 2-4 or According to other settings.

De acuerdo a una forma de realización adicional de la invención, la alfombra de sellado puede proporcionarse con una capa auxiliar exterior 5 de tela no tejida o material biodegradable seleccionado entre papeles, cartones ondulados y películas solubles en agua, telas no tejidas de fibras degradables sintéticas o naturales, con una capa 33 de bentonita u otro material hinchable situado entre esta capa auxiliar 5 y la capa de soporte de substrato 2. Esta sección auxiliar (fondo) formada por las capas 5, 33 y 2 forma una capa de sellado adicional para asegurar una impermeabilización apropiada en las situaciones más críticas, en particular en las que la alfombra de sellado puede ser "atacada" por el agua en cualquiera de sus caras.According to an additional embodiment of the invention, the sealing mat can be provided with an outer auxiliary layer 5 of nonwoven fabric or material biodegradable selected among papers, corrugated cardboard and water soluble films, nonwoven fabrics of degradable fibers synthetic or natural, with a layer 33 of bentonite or other material inflatable located between this auxiliary layer 5 and the support layer of substrate 2. This auxiliary section (bottom) formed by the layers 5, 33 and 2 forms an additional sealing layer to ensure a appropriate waterproofing in the most critical situations, in particular in which the sealing mat can be "attacked" by water on any of its faces.

La Figura 6 ilustra esquemáticamente la disposición para fabricar tal alfombra de sellado equipada con una capa auxiliar, que comprende un rollo 25 de material auxiliar 5, un rollo 22 de un material de soporte de substrato 2, un rollo 24 de un material de cobertura 4, y dos dispensadores 21 y 23 de materiales hinchables 33 y 3 que pueden ser diferentes uno del otro, o pueden depositarse para cada capa con modalidades diferentes.Figure 6 schematically illustrates the readiness to manufacture such a sealing mat equipped with a auxiliary layer, comprising a roll 25 of auxiliary material 5, a roll 22 of a substrate support material 2, a roll 24 of a cover material 4, and two dispensers 21 and 23 of inflatable materials 33 and 3 that may be different from each other, or they can be deposited for each layer with different modalities.

Aunque la invención se ha ilustrado con referencia a unas formas de realización preferidas, generalmente está sujeta a otras aplicaciones y modificaciones que caen dentro del ámbito de la invención como resultará evidente a los expertos en la materia.Although the invention has been illustrated with reference to preferred embodiments, generally It is subject to other applications and modifications that fall within of the scope of the invention as will be apparent to the experts in the matter.

Claims (8)

1. Una alfombra de sellado multicapa (1) que comprende: una capa de soporte de substrato (2), una capa de cobertura (4), unidas una a la otra a lo largo de costuras o puntos longitudinales (10, 12), y una capa intermedia de un material hinchable (3) dispuesta entre dichas dos capas (2, 4), siendo al menos una de dichas capas de soporte (2) y de cobertura (4) de un material al menos parcialmente biodegradable, comprendiendo al menos dicha capa de soporte de substrato (2) una tela no tejida cosida, y estando dichas dos capas (2, 4) unidas una a la otra mediante cosido, caracterizada porque dicho material biodegradable es un material seleccionado entre papeles, cartones ondulados, películas solubles en agua y porque dicha costura se extiende a lo largo de toda la superficie de dichas dos capas (2, 4).1. A multi-layer sealing mat (1) comprising: a substrate support layer (2), a cover layer (4), joined to each other along seams or longitudinal points (10, 12), and an intermediate layer of an inflatable material (3) disposed between said two layers (2, 4), at least one of said support (2) and cover layers (4) of a at least partially biodegradable material, comprising the less said substrate support layer (2) a sewn non-woven fabric, and said two layers (2, 4) being joined to each other by sewing, characterized in that said biodegradable material is a material selected from paper, corrugated cardboard, films soluble in water and because said seam extends along the entire surface of said two layers (2, 4). 2. Una alfombra de sellado multicapa según la reivindicación 1 ó 2, caracterizada porque dicha capa biodegradable es dicha capa de cobertura (4).2. A multi-layer sealing mat according to claim 1 or 2, characterized in that said biodegradable layer is said covering layer (4). 3. Una alfombra de sellado multicapa según las reivindicaciones 1 ó 2, caracterizada porque dicha capa intermedia de material hinchable (3) comprende bentonita en polvo o granulada.3. A multi-layer sealing mat according to claims 1 or 2, characterized in that said intermediate layer of inflatable material (3) comprises powdered or granulated bentonite. 4. Una alfombra de sellado multicapa según las reivindicaciones precedentes, caracterizada porque dicha capa de soporte de substrato (2) comprende una tela no tejida cosida hecha de fibras sintéticas.4. A multi-layer sealing mat according to the preceding claims, characterized in that said substrate support layer (2) comprises a sewn non-woven fabric made of synthetic fibers. 5. Una alfombra de sellado multicapa según las reivindicaciones precedentes, caracterizada porque dicha capa de cobertura (4) comprende telas no tejidas biodegradables de fibras degradables sintéticas o naturales.5. A multi-layer sealing mat according to the preceding claims, characterized in that said cover layer (4) comprises biodegradable non-woven fabrics of synthetic or natural degradable fibers. 6. Una alfombra de sellado multicapa según las reivindicaciones precedentes, caracterizada porque comprende una capa auxiliar exterior adicional (5) que está formada por tela no tejida o material biodegradable seleccionado entre papeles, cartones ondulados, películas solubles en agua, telas no tejidas de fibras degradables sintéticas o naturales, con una capa adicional (33) de material hinchable o bentonita que se sitúa entre dichas capas auxiliares (5) y de soporte (4).A multilayer sealing mat according to the preceding claims, characterized in that it comprises an additional outer auxiliary layer (5) that is formed of nonwoven fabric or biodegradable material selected from paper, corrugated cardboard, water soluble films, nonwoven fiber fabrics synthetic or natural degradable, with an additional layer (33) of inflatable or bentonite material that is placed between said auxiliary (5) and support (4) layers. 7. Una alfombra de sellado multicapa según las reivindicaciones precedentes, caracterizada porque dicho cosido comprende costuras (10) de los bordes para prevenir la dispersión de la bentonita en polvo o granulada (3, 33) durante el manejo.7. A multi-layer sealing mat according to the preceding claims, characterized in that said sewing comprises seams (10) of the edges to prevent dispersion of the powder or granulated bentonite (3, 33) during handling. 8. Una alfombra de sellado multicapa según la reivindicación 7, caracterizada porque está formada por elementos adyacentes generalmente rectangulares obtenidos mediante costuras (11) transversales y longitudinales (12, 10) mediante las cuales el material hinchable (3) no puede escapar lateralmente.A multi-layer sealing mat according to claim 7, characterized in that it is formed by generally rectangular adjacent elements obtained by transverse and longitudinal seams (11) (12, 10) whereby the inflatable material (3) cannot escape laterally.
ES02425614T 2002-10-10 2002-10-10 A MULTICAPA SEALED CARPET. Expired - Lifetime ES2239214T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425614A EP1416094B1 (en) 2002-10-10 2002-10-10 A multilayer sealing mat

Publications (1)

Publication Number Publication Date
ES2239214T3 true ES2239214T3 (en) 2005-09-16

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ES02425614T Expired - Lifetime ES2239214T3 (en) 2002-10-10 2002-10-10 A MULTICAPA SEALED CARPET.

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EP (1) EP1416094B1 (en)
AT (1) ATE292214T1 (en)
DE (1) DE60203517T2 (en)
ES (1) ES2239214T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2248959A1 (en) * 2009-05-05 2010-11-10 Adrian Blödt Device for liquid-tight covering a building, method for producing a liquid-tight cover and fluid-absorbent element
CN112878467B (en) * 2021-01-12 2022-05-31 新疆大漠奇观生态科技有限公司 Ecological rainwater collection system of preventing grass is protected to soil moisture along railway
DE202022103585U1 (en) 2022-06-28 2023-09-29 Naue Gmbh & Co. Kg Biodegradable soil sealing membrane

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221329A1 (en) * 1992-06-29 1994-01-05 Huesker Synthetic Gmbh & Co Sealing mat used in building - has bearer layer and cover layer formed by material strips and intermediate layer of swellable material
DE19649628A1 (en) * 1996-12-01 1998-06-04 Naue Fasertechnik Mineral seal construction, manufacturing processes and geosynthetic sealing strip
DE19738169A1 (en) * 1997-09-01 1999-03-11 Huesker Synthetic Gmbh & Co Sealing mat
DE19827909A1 (en) * 1998-06-23 1999-12-30 Hans Zauser Sealing mat for creating a liquid-tight layer in the ground
DE19858180A1 (en) * 1998-12-17 2000-06-21 Nabento Vliesstoff Gmbh Sealing mat and method for manufacturing a sealing mat

Also Published As

Publication number Publication date
EP1416094A1 (en) 2004-05-06
ATE292214T1 (en) 2005-04-15
DE60203517T2 (en) 2006-02-16
EP1416094B1 (en) 2005-03-30
DE60203517D1 (en) 2005-05-04

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