ES2555226B1 - Protection element for a pipe and method of obtaining the protection element - Google Patents
Protection element for a pipe and method of obtaining the protection element Download PDFInfo
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- ES2555226B1 ES2555226B1 ES201430967A ES201430967A ES2555226B1 ES 2555226 B1 ES2555226 B1 ES 2555226B1 ES 201430967 A ES201430967 A ES 201430967A ES 201430967 A ES201430967 A ES 201430967A ES 2555226 B1 ES2555226 B1 ES 2555226B1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/04—Protection of pipes or objects of similar shape against external or internal damage or wear against fire or other external sources of extreme heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/075—Arrangements using an air layer or vacuum the air layer or the vacuum being delimited by longitudinal channels distributed around the circumference of a tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/10—Bandages or covers for the protection of the insulation, e.g. against the influence of the environment or against mechanical damage
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Details Of Indoor Wiring (AREA)
- Laminated Bodies (AREA)
Abstract
Elemento de protección para una canalización y método de obtención del elemento de protección.#Elemento de protección de canalizaciones obtenido mediante una mezcla de un material elastómero termoplástico y un material intumescente. El elemento comprende un cuerpo principal que puede tener tanto forma de plancha (1) como de tubo (3), y que puede asimismo comprender elementos de separación (2) para conseguir un aislamiento adicional a través de la cámara de aire generada entre dicho elemento y la canalización. El elemento proporciona protección ante fugas de líquidos, así como ante focos de calor o fuego provocados por cables eléctricos u otros elementos.Protection element for a pipe and method of obtaining the protection element. # Pipe protection element obtained by a mixture of a thermoplastic elastomeric material and an intumescent material. The element comprises a main body that can be in the form of both a plate (1) and a tube (3), and which can also comprise separation elements (2) to achieve additional insulation through the air chamber generated between said element and channeling. The element provides protection against liquid leaks, as well as against heat or fire sources caused by electric cables or other elements.
Description
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DESCRIPCIONDESCRIPTION
Elemento de protection para una canalization y metodo de obtencion del elemento de protectionProtection element for a canalization and method of obtaining the protection element
Objeto de la inventionObject of the invention
La presente invencion se refiere al campo de las redes de distribution de gas, agua, electricidad, etc., y en particular, a la proteccion de dichas canalizaciones.The present invention relates to the field of distribution networks of gas, water, electricity, etc., and in particular, to the protection of said pipes.
Antecedentes de la invencionBackground of the invention
Actualmente, es comun encontrar una gran variedad de redes de distribucion instaladas en el subsuelo, incluyendo canalizaciones de gas, agua potable, electricidad, comunicaciones, saneamiento, etc. En muchas ocasiones, canalizaciones con diversas funciones comparten un mismo trazado en parte o en la totalidad de su recorrido, o bien estan instaladas proximas unas de otras. Las redes de distribucion adyacentes pueden sufrir fallos debidos tanto a problemas internos como a intervenciones externas, ya sean de origen natural, por ejemplo debido a movimientos de terrenos; o humano, por ejemplo debido a construcciones cercanas. Dependiendo del tipo de canalizacion en la que se produce el fallo, pueden generarse fugas de gas, de liquidos, fallos electricos, contamination del suelo, etc. Resulta por lo tanto de vital importancia, garantizar la seguridad de las canalizaciones ante este tipo de situaciones.Currently, it is common to find a wide variety of distribution networks installed in the subsoil, including pipelines of gas, drinking water, electricity, communications, sanitation, etc. In many cases, pipes with different functions share the same route in part or in the whole of their route, or they are installed close to each other. Adjacent distribution networks may suffer failures due to both internal problems and external interventions, whether of natural origin, for example due to land movements; or human, for example due to nearby constructions. Depending on the type of channeling in which the fault occurs, gas, liquid, electrical failure, soil contamination, etc. leaks can occur. It is therefore vitally important to ensure the safety of the channels in this type of situation.
Con este fin, existen normativas particularizadas a cada tipo de canalizacion que obligan a mantener ciertas distancias entre elementos de las distintas redes de distribucion, asi como a cumplir otros requisitos de seguridad. Por ejemplo, la norma espanola UNE 60311 establece los requisitos que deben cumplir las canalizaciones de distribucion de combustibles gaseosos, siempre que no superen una presion maxima de operation de 5 bar. Entre las condiciones de instalacion indicadas en la norma UNE 60311, queda establecida la necesidad de utilizar fundas o vainas de proteccion, especialmente cuando no puede garantizarse una separacion suficiente con el resto de canalizaciones. En el caso de canalizaciones de acero, las fundas presentan tubos de aireacion y venteo, siendo su numero dependiente de la longitud y diametro de las tuberias. Las canalizaciones de polietileno, asi como aquellos puntos no sometidos a grandes esfuerzo, pueden utilizar fundas de proteccion sin aireacion.To this end, there are regulations specific to each type of channeling that require maintaining certain distances between elements of the different distribution networks, as well as complying with other security requirements. For example, the Spanish standard UNE 60311 establishes the requirements that must be met by gaseous fuel distribution pipes, provided they do not exceed a maximum operating pressure of 5 bar. Among the installation conditions indicated in the UNE 60311 standard, the need to use protective sleeves or sheaths is established, especially when a sufficient separation cannot be guaranteed with the rest of the pipes. In the case of steel pipes, the covers have aeration and vent tubes, their number being dependent on the length and diameter of the pipes. Polyethylene pipes, as well as those points not subjected to great effort, can use protective covers without aeration.
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En particular, son conocidas en el estado de la tecnica fundas de protection basadas en laminas de caucho, utilizadas actualmente para proteger canalizaciones de gas. Dichas laminas de caucho pueden aplicarse tanto a la proteccion de canalizaciones de acero como de polietileno, protegiendolas de fugas de agua y aislandolas termicamente del cableado electrico. En determinadas implementaciones, las fundas comprenden policloruro de vinilo (PVC), que actua como soporte del caucho. Asimismo, el caucho puede ser bien mayormente natural, bien mayormente sintetico, siempre y cuando cumpla los requisitos mecanicos y termicos exigidos.In particular, protective covers based on rubber sheets, currently used to protect gas pipes, are known in the state of the art. Said rubber sheets can be applied both to the protection of steel and polyethylene pipes, protecting them from water leaks and thermally insulating them from electrical wiring. In certain implementations, the covers comprise polyvinyl chloride (PVC), which acts as a rubber support. Likewise, rubber can be mostly natural, or mostly synthetic, provided it meets the required mechanical and thermal requirements.
No obstante, sigue existiendo en el estado de la tecnica la necesidad de elementos de proteccion para canalizaciones de facil instalacion, capaces de salvaguardar las redes de distribution tanto de fugas de liquidos como de focos de calor o fuego.However, there is still a need in the state of the art for protection elements for easy installation pipes, capable of safeguarding the distribution networks of both liquid leaks and heat or fire sources.
Description de la inventionDescription of the invention
La presente invencion soluciona los problemas anteriormente descritos mediante una proteccion basada en una lamina flexible que envuelve las canalizaciones, protegiendolas de fugas de agua u otros liquidos, asi como de focos de calor o fuego producidos por cables electricos u otros elementos.The present invention solves the problems described above by means of a protection based on a flexible sheet that envelops the pipes, protecting them from leaks of water or other liquids, as well as from heat or fire sources produced by electric cables or other elements.
En un primer aspecto de la invencion, se presenta un elemento de proteccion para una canalization sintetizado con un compuesto que comprende un material elastomero termoplastico y un material intumescente. Preferentemente, el material elastomero termoplastico es un poliuretano termoplastico (TPU, del ingles ‘Thermoplatic Polyurethane), un elastomero termoplastico (TPE, del ingles ‘Thermoplastic elastomer’), o una combination de TPE y TPU. Asimismo, el material intumescente es preferentemente un polifosfato de amonio. Tambien preferentemente, el material intumescente supone entre un 15% y un 40% del peso del compuesto.In a first aspect of the invention, a protection element for a canalization synthesized with a compound comprising a thermoplastic elastomeric material and an intumescent material is presented. Preferably, the thermoplastic elastomeric material is a thermoplastic polyurethane (TPU), a thermoplastic elastomer (TPE), or a combination of TPE and TPU. Also, the intumescent material is preferably an ammonium polyphosphate. Also preferably, the intumescent material accounts for between 15% and 40% of the weight of the compound.
Preferentemente, el elemento de proteccion comprende ademas un aditivo compatibilizante. Mas preferentemente, el aditivo compatibilizante es anhidrico maleico. Tambien preferentemente, la masa de dicho aditivo compatibilizante respecto al total del elemento de proteccion no supera el 3%.Preferably, the protection element further comprises a compatibilizing additive. More preferably, the compatibilizing additive is maleic anhydrous. Also preferably, the mass of said compatibilizing additive with respect to the total of the protection element does not exceed 3%.
Como opciones preferentes en cuanto a la morfologia del elemento de proteccion, se contemplan bien una forma de plancha, que permite envolver el elemento de proteccion totalAs preferred options in terms of the morphology of the protection element, a plate form is contemplated, which allows the total protection element to be wrapped
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o parcialmente en torno a la canalizacion durante su instalacion; bien una forma de tubo (tambien denominada lamina conformada) adaptado al tamano de la canalizacion, de forma que dicha canalizacion queda resguardada en el interior del tubo. Mas preferentemente, el grosor del cuerpo principal del elemento de protection (es decir, el grosor de la plancha o del tubo), esta comprendido entre 1,5 y 2,5 mm.or partially around the pipeline during installation; or a tube shape (also called shaped sheet) adapted to the size of the pipe, so that the pipe is protected inside the tube. More preferably, the thickness of the main body of the protection element (ie, the thickness of the plate or tube) is between 1.5 and 2.5 mm.
Preferentemente, el elemento de proteccion comprende una pluralidad de elementos distanciadores adaptados para crear una camara de aire entre la canalizacion y el propio elemento de proteccion, favoreciendo el aislamiento de la canalizacion. Dichos elementos distanciadores se extienden desde una cara interna del cuerpo principal del elemento de proteccion, y tienen preferentemente una altura comprendida entre 3 y 7 mm.Preferably, the protection element comprises a plurality of distance elements adapted to create an air chamber between the pipe and the protection element itself, favoring the isolation of the pipe. Said distance elements extend from an inner face of the main body of the protection element, and preferably have a height between 3 and 7 mm.
En un segundo aspecto de la invention, se presenta un metodo de obtencion de un elemento de proteccion con las caracteristicas descritas, que comprende mezclar el material elastomero termoplastico, el material intumescente y, en su caso, el aditivo compatibilizante, a una temperatura entre 140 °C y 190 °C. Preferentemente, el elemento se obtiene mediante extrusion, laminado o inyeccion de la mezcla resultante.In a second aspect of the invention, a method of obtaining a protection element with the described characteristics is presented, which comprises mixing the thermoplastic elastomeric material, the intumescent material and, where appropriate, the compatibilizing additive, at a temperature between 140 ° C and 190 ° C. Preferably, the element is obtained by extrusion, rolling or injection of the resulting mixture.
Finalmente, en un tercer aspecto de la presente invencion, se presenta un uso del elemento descrito como proteccion de la canalizacion, siendo dicha proteccion parcial o completamente envolvente.Finally, in a third aspect of the present invention, there is a use of the element described as protection of the pipeline, said protection being partially or completely enveloping.
El elemento, metodo, y uso descritos, proporcionan una proteccion efectiva de canalizaciones contra liquidos y focos de calor, favorecida de formas sinergica por los compuestos empleados y la morfologia del elemento de proteccion. Estas y otras ventajas de la invencion seran aparentes a la luz de la descripcion detallada de la misma.The element, method, and use described, provide an effective protection of pipes against liquids and heat sources, favored synergistically by the compounds employed and the morphology of the protection element. These and other advantages of the invention will be apparent in light of the detailed description thereof.
Description de las figurasDescription of the figures
Con objeto de ayudar a una mejor comprension de las caracteristicas de la invencion de acuerdo con un ejemplo preferente de realization practica de la misma, y para complementar esta descripcion, se acompana como parte integrante de la misma las siguientes figuras, cuyo caracter es ilustrativo y no limitativo:In order to help a better understanding of the features of the invention according to a preferred example of practical realization thereof, and to complement this description, the following figures are attached as an integral part thereof, the character of which is illustrative and non-limiting:
La figura 1 muestra un plano transversal de un elemento de proteccion con forma de plancha, de acuerdo con una implementation particular de la invencion.Figure 1 shows a transverse plane of an iron-shaped protection element, in accordance with a particular implementation of the invention.
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La figura 2 presenta un plano transversal de un elemento de protection con forma de tubo, de acuerdo con una implementation particular de la invention.Figure 2 shows a transverse plane of a tube-shaped protection element, according to a particular implementation of the invention.
Realization preferente de la invencionPreferred realization of the invention
En este texto, el termino "comprende" y sus derivaciones (como "comprendiendo", etc.) no deben entenderse en un sentido excluyente, es decir, estos terminos no deben interpretarse como excluyentes de la posibilidad de que lo que se describe y define pueda incluir mas elementos, etapas, etc.In this text, the term "comprises" and its derivations (such as "understanding", etc.) should not be understood in an exclusive sense, that is, these terms should not be construed as excluding the possibility that what is described and defined can include more elements, stages, etc.
Notese asimismo que las realizaciones preferentes de la invencion se han descrito para el tamano y los requisitos propios de una aplicacion a una canalization de gas. No obstante, la invencion no esta limitada a ese escenario, pudiendo ser aplicada igualmente a la proteccion de cualquier otro tipo de canalizacion.Also note that the preferred embodiments of the invention have been described for the size and the requirements of an application to a gas pipeline. However, the invention is not limited to that scenario, and can also be applied to the protection of any other type of channeling.
La figura 1 muestra un elemento de proteccion segun una implementacion particular de la invencion, que comprende un cuerpo principal en forma de plancha 1, con una pluralidad de elementos distanciadores 2 fabricados con el mismo material que la plancha 1. Los elementos distanciadores pueden comprenden, entre otros, nervios longitudinales, paralelos, rectos, o helicoidales; protuberancias; tetones; o cualquier combination de los anteriores. Los elementos distanciadores 2 estan preferiblemente equiespaciados, aunque pueden existir implementaciones particulares con otras configuraciones. La altura de los elementos distanciadores 2, independientemente de su morfologia particular, esta preferente comprendida entre 3 y 7 mm, creando una camara de aire entre la cara externa de la canalizacion y la cara interna del elemento de proteccion. Dicha camara de aire favorece el aislamiento proporcionado por el cuerpo principal del elemento de proteccion.Figure 1 shows a protection element according to a particular implementation of the invention, comprising a main body in the form of a plate 1, with a plurality of distance elements 2 made of the same material as the plate 1. The distance elements may comprise, among others, longitudinal, parallel, straight, or helical nerves; bumps; big tits or any combination of the above. The distance elements 2 are preferably equally spaced, although there may be particular implementations with other configurations. The height of the distance elements 2, regardless of their particular morphology, is preferably between 3 and 7 mm, creating an air chamber between the external face of the pipe and the internal face of the protection element. Said air chamber favors the insulation provided by the main body of the protection element.
La plancha 1 tiene un grosor comprendido entre 1,5 y 2,5 mm, y unas dimensiones adaptadas a la longitud y el diametro de la canalizacion sobre la que se aplica. Al estar fabricado en un material flexible, la plancha 1 se instala envolviendo la canalizacion, preferentemente en la totalidad de su perimetro. El elemento de proteccion puede comprender elementos adicionales de fijacion, tales como bridas o cualquier otro dispositivo equivalente que garantice que el elemento de proteccion permanece en la position adecuada.The plate 1 has a thickness between 1.5 and 2.5 mm, and dimensions adapted to the length and diameter of the pipe on which it is applied. Being manufactured in a flexible material, the plate 1 is installed by wrapping the pipe, preferably in its entire perimeter. The protection element may comprise additional fasteners, such as flanges or any other equivalent device that ensures that the protection element remains in the proper position.
La figura 2 presenta una implementacion alternativa en la que el cuerpo principal delFigure 2 presents an alternative implementation in which the main body of the
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elemento de protection presenta directamente forma de tubo 3, con un diametro adaptado para albergar en su interior la canalization a proteger. El grosor del tubo 3 es el mismo que el de la plancha 1, permitiendo las mismas alternativas descritas en terminos de tamano y morfolog^a para los elementos de separation 2.protection element directly has a tube 3, with a diameter adapted to house inside the canalization to protect. The thickness of the tube 3 is the same as that of the plate 1, allowing the same alternatives described in terms of size and morphology for the separation elements 2.
Independientemente de su morfologia particular, el elemento de proteccion comprende una mezcla de un material elastomero termoplastico para dotar al elemento de proteccion de flexibilidad e impermeabilidad, un material intumescente para proporcionar el caracter igtifugo y un aditivo compatibilizante para favorecer la integration de los materiales anteriores. En una realization preferente del elemento de proteccion, los materiales y proporciones concretos comprendidos en el material son los siguientes:Regardless of its particular morphology, the protection element comprises a mixture of a thermoplastic elastomeric material to provide the protection element with flexibility and impermeability, an intumescent material to provide the flame retardant character and a compatibilizing additive to favor the integration of the above materials. In a preferred embodiment of the protection element, the concrete materials and proportions included in the material are the following:
-TPU.-TPU.
-Polifosfato de Amonio, en una proportion entre el 15% y el 40% de la masa total del elemento de proteccion.-Amonium Polyphosphate, in a proportion between 15% and 40% of the total mass of the protection element.
-Anhidrido maleico, en una proporcion no superior al 3% de la masa total del elemento de proteccion.-Maleic anhydride, in a proportion not exceeding 3% of the total mass of the protection element.
El elemento de proteccion se obtiene mediante mezcla de los materiales descritos, en las proporciones detalladas, a una temperatura comprendida entre 140 °C y 190 °C. Una vez mezclado, el elemento de proteccion se puede obtener mediante cualquiera de las siguientes tecnicas, preferentemente manteniendo la temperatura entre 140 °C y 190 °C: -Extrusion en forma de plancha 1 o tubo 3.The protection element is obtained by mixing the materials described, in the detailed proportions, at a temperature between 140 ° C and 190 ° C. Once mixed, the protection element can be obtained by any of the following techniques, preferably maintaining the temperature between 140 ° C and 190 ° C: -Extrusion in the form of plate 1 or tube 3.
-Extrusion en formato de plancha 1 por calandrado.-Extrusion in plate 1 format by calendering.
-Inyeccion sobre molde.-Injection on mold.
-Laminado.-Laminate.
La morfologia y composition material descritas estan adaptadas para conseguir una proteccion duradera tanto frente a abrasion provocada por fugas de agua como a incrementos de temperatura provocados por focos de calor o fuego. En particular, el elemento de proteccion esta adaptado para presentar una ausencia total de perforation siendo sometido durante 250 horas a un dardo o jet de agua de 3 mm de diametro, con una mezcla de arena proyectada a una presion de 6,5 bar, cuando dicho dardo se proyecta a una distancia de 50 mm con una temperatura de agua comprendida entre 20 °C y 26 °C.The morphology and material composition described are adapted to achieve lasting protection both against abrasion caused by water leaks and temperature increases caused by heat or fire sources. In particular, the protection element is adapted to present a total absence of perforation being subjected for 250 hours to a dart or jet of water of 3 mm in diameter, with a mixture of sand projected at a pressure of 6.5 bar, when said dart is projected at a distance of 50 mm with a water temperature between 20 ° C and 26 ° C.
Asimismo, el elemento de proteccion esta adaptado para mantener una diferencia termica entre la superficie externa del elemento de proteccion y la superficie externa de laAlso, the protection element is adapted to maintain a thermal difference between the external surface of the protection element and the external surface of the
canalizacion superior a 30°C, cuando una canalizacion con un aire circulante de 3,5 bar se somete a una temperatura de 135 °C durante 24 horas, considerando una fuente de calor con una separacion variable de entre 0 y 5 cm respecto de la superficie externa del elemento protector, y una canalizacion enterrada en condiciones de humedad similares a las 5 de un terreno habitual de instalacion.channeling greater than 30 ° C, when a channeling with a circulating air of 3.5 bar is subjected to a temperature of 135 ° C for 24 hours, considering a heat source with a variable separation between 0 and 5 cm from the external surface of the protective element, and a buried pipe in humid conditions similar to 5 of a usual installation ground.
A la vista de esta description y figuras, el experto en la materia podra entender que la invention ha sido descrita segun algunas realizaciones preferentes de la misma, pero que multiples variaciones pueden ser introducidas en dichas realizaciones preferentes, sin salir 10 del objeto de la invencion tal y como ha sido reivindicada.In view of this description and figures, the person skilled in the art may understand that the invention has been described according to some preferred embodiments thereof, but that multiple variations may be introduced in said preferred embodiments, without leaving the object of the invention. as claimed.
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201430967A ES2555226B1 (en) | 2014-06-25 | 2014-06-25 | Protection element for a pipe and method of obtaining the protection element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201430967A ES2555226B1 (en) | 2014-06-25 | 2014-06-25 | Protection element for a pipe and method of obtaining the protection element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2555226A1 ES2555226A1 (en) | 2015-12-29 |
| ES2555226B1 true ES2555226B1 (en) | 2016-06-16 |
Family
ID=54883774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201430967A Active ES2555226B1 (en) | 2014-06-25 | 2014-06-25 | Protection element for a pipe and method of obtaining the protection element |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2555226B1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB830708A (en) * | 1957-10-29 | 1960-03-16 | Hackethal Draht & Kabelwerk Ag | Heat insulating pipes |
| DE2461013C3 (en) * | 1974-12-21 | 1982-01-07 | Wieland-Werke Ag, 7900 Ulm | Thermally insulated composite pipe consisting of a metal pipe and a plastic jacket |
| US20050107550A1 (en) * | 2003-11-14 | 2005-05-19 | Agrawal Purushottam D. | Elastic articles prepared from extrudable elastomeric compositions |
| FR2901799B1 (en) * | 2006-06-02 | 2008-08-01 | Arkema France | HIGH THERMOMECHANICAL, FALSE-FREE THERMOPLASTIC THERMOPLASTIC COMPOSITIONS WITHOUT HALOGEN |
| GB2471075A (en) * | 2009-06-15 | 2010-12-22 | Sleev It Fire Systems Ltd | A fire-collar located between two pipes in a fire-retarding arrangement |
| US20120186684A1 (en) * | 2011-01-24 | 2012-07-26 | The Gates Corporation | Flame Resistant Hose Construction and Method |
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2014
- 2014-06-25 ES ES201430967A patent/ES2555226B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| ES2555226A1 (en) | 2015-12-29 |
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