EP0718447B1 - Fire proof sound and heat insulation material - Google Patents

Fire proof sound and heat insulation material Download PDF

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Publication number
EP0718447B1
EP0718447B1 EP95402931A EP95402931A EP0718447B1 EP 0718447 B1 EP0718447 B1 EP 0718447B1 EP 95402931 A EP95402931 A EP 95402931A EP 95402931 A EP95402931 A EP 95402931A EP 0718447 B1 EP0718447 B1 EP 0718447B1
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Prior art keywords
films
material according
layer
air bubbles
polyethylene
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German (de)
French (fr)
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EP0718447A1 (en
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Michel Georges
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Priority claimed from FR9415682A external-priority patent/FR2728601B1/en
Priority claimed from FR9509350A external-priority patent/FR2737234B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B2001/7691—Heat reflecting layers or coatings

Definitions

  • the present invention relates to a fire-resistant thermal and acoustic insulating material especially for insulating buildings.
  • It relates more particularly to a thermal and acoustic insulation material based on films with air bubbles and possibly based on fluid polyethylene fire-resistant foam.
  • Such an insulator does not provide sufficient flame resistance despite the presence flame retardants.
  • the invention relates to an improvement to US Patent No. 4,038,447 which describes a concrete protection cover against frost.
  • This cover consists of two layers of air bubble film coated with a non-flammable material assembled together by graffiti around the edge of the cover and placing rivets on the rest of the surface. There is however an air passage at the within the cover does not allow obtaining sufficient security assurances vis-à-vis of the flame as well as a reduction in the expected thermal characteristics.
  • the product is assembled in such a way that the aluminum sides are on the outside and welded to the sides of the two sheets lengthwise.
  • air bubble films including polyethylene. These films are generally used for packaging or as thermal insulation. Polyethylene foams are generally used in acoustic protection.
  • the most commonly used thermal and acoustic insulation in the buildings is glass wool.
  • This product basically has like advantage of being inexpensive.
  • it has the disadvantage of being thick and heavy, flammable and above all delicate and unpleasant to handle makes glass dust which it generates in its environment. So people handling glass wool regularly should not be allergic to glass dust and are often prone to irritation, even lesions.
  • the object of the invention is to provide an air bubble film and a foam polyethylene which are completely unalterable when the materials are exposed to ultraviolet radiation and that they represent good characteristics of mechanical resistance and resistance to flame and heat while having a good acoustic characteristic.
  • the object of the invention is also to provide a thermal insulator and fire-resistant acoustics especially for the insulation of buildings, offices and industry that is light, thin, unalterable when exposed to ultraviolet rays sufficiently flame resistant to meet the standards required in the construction of buildings, inexpensive and which is clean and easy to handle.
  • the invention relates to an insulating material in accordance with the claim 1.
  • the invention also relates to a method of manufacturing a material. insulator according to claim 14.
  • the insulating material comprises mainly two films 2 of synthetic material containing bubbles 3, in particular air bubbles regularly distributed, but possibly of different density, and each of which outer faces of the films forming the insulator is covered with a protective coating 1, such as in particular a continuous layer comprising aluminum and which is welded on to minus one of the two faces.
  • At least two films 2 are made integral at the level of their face not coated with the protective layer, by a heating operation which allows uniform welding by thermoplastic fusion.
  • the insulation object of the invention there is interposed between the at least two films 2, at least one layer 4 of insulating material, of variable thickness, such as in particular a layer of fluid polyethylene foam in a sheet.
  • the bubble plastic layer is, for example, a layer flame retardant polyethylene
  • the insulator according to the invention can comprise a plurality of assemblies consisting of at least at least two films of bubbles made integral on one of their faces, the other faces being covered with a layer of aluminum 1; it being understood that according to a variant, one interposes in at least one of the bubble film assemblies, at least one layer of variable thickness insulating foam 4.
  • the films according to the invention are opaque to radiation, reflect radiation and are impervious to liquids and / or gases.
  • Polyethylene foams are flame retardant and good receptors of acoustic frequencies. Using bubbles of different dimensions, distributed over the surface of the film according to a desired density, we can adjust the frequency response of the film so, thanks to the frequency specific to the resonance of the bubble, to cancel the propagation of the sound.
  • Tests carried out on a fire-resistant thermal and acoustic insulator according to the invention have shown quite surprising mechanical resistance and flame resistance characteristics as well as low and high frequencies.
  • the aluminum layer 1 is an aluminum film attached to a polyethylene film which is welded to the layer of synthetic material 2 bubble 3.
  • the insulator according to the invention has several thicknesses of a minimum of 7 mm comprising at least two films of flame-retardant air bubbles, 10 mm bubble having a thickness of 3.5 mm.
  • 10 mm bubble having a thickness of 3.5 mm.
  • 18 mm bubbles 7 mm thick to have a maximum thickness of 28 mm.
  • a 30 mm bubble having a thickness of 14 mm is provided.
  • the bubble polyethylene is mixed in a mixing silo (20) with adjuvants allowing flame retardant and other possible additives (dyes, etc.), for example, we mix 95% polyethylene with 3% aluminum 50 and 2% dyes.
  • a hollow drum (26) is used on which a strip is wound.
  • (24) of hot polyethylene from an extrusion / rolling device (21) to form bubbles with this strip (24) a roller (31) plating and welding a second strip (25) of hot synthetic material, especially hot polyethylene against the first strip (24) wound on the drum (26).
  • the installation includes a feed drum (32) on which the aluminum foil is wound, and means (33) for preheating the aluminum foil disposed between the supply drum (32) and means (34) for pressing and welding the sheet aluminum on the bubble plastic layer at the outlet of the drum (26).
  • the preheating means (33) consist of a roller (33) kept hot and coming to the aluminum foil contact, to heat a polyethylene film from this foil to through the aluminum foil.
  • the insulation according to the invention consists of several thicknesses of air bubble films superimposed on each other and associated with each other by their surfaces welded to hot.
  • the 30 micron aluminum films being heat welded to the surface are always turned outwards and constitute the external faces of FIG. 1.
  • the tests were carried out and surprisingly showed that an insulator according to the invention with significant resistance to fire (classification M1) a service life of more than 10 years classified rot-proof and 0 to humidity by CEBTP.
  • the invention consists in improving the insulating product in its new design, hot glue the films of air bubbles together so that when we make cuts that the product remains whole in its thicknesses and waterproof.
  • the second improvement is to let the left and right of the product exceed an offset for better thermal and soundproofing.
  • a classified sticker MO / M1 in aluminum so that the product is fireproof and classified M1.
  • the invention therefore relates to a sound and thermal insulating material on the basis of films with air bubbles and an envelope of hot-welded aluminum film to be able to resist fire
  • the material resulting from the manufacture by the superimposition of flame retardant polyethylene films with bubbles assembled by hot gluing to form a sandwich that can be cut without having to reconstitute the insulating product by stapling.
  • the figure shows a perfect assembly by hot gluing to form a sandwich that can be cut without having to reconstitute the insulating product by stapling.
  • the thermal and phonic insulation in the form of a sheet, in particular for the insulation of buildings consists of at least two thicknesses superimposed on each other so that the layers comprising aluminum thicknesses form the outer faces of the insulation
  • an offset of the two upper and lower layers allows to have a overlapping of the layers without creating a thermal bridge. It is possible to stick the lips between them and thus form a total continuity of the insulation which is covered with an adhesive aluminum classified MO / M1 in order to have all the guarantees of safety and performance thermal.
  • the product bonded over its entire surface allows better rigidity of the insulation which is more easy to set up and has better hold (no creation of belly when used under roof or ceiling).
  • the insulating assemblies according to the invention can be either covered with a coating or be glued to an acoustic correction material such as in particular a rigid panel (plaster, wood, decor panel, composite material panel (fiberglass, fiber carbon) on one or both sides with or without battening of wood or synthetic material and be fitted with a sealing device between the panels in order to avoid thermal bridges and phonic and avoid deterioration by humidity.
  • an acoustic correction material such as in particular a rigid panel (plaster, wood, decor panel, composite material panel (fiberglass, fiber carbon) on one or both sides with or without battening of wood or synthetic material and be fitted with a sealing device between the panels in order to avoid thermal bridges and phonic and avoid deterioration by humidity.
  • the product thus obtained is really suitable for insulating buildings but also in industry for ventilation ducts in noisy rooms, boats, caravans ...

Abstract

The fireproof acoustic and thermal insulation material is a sandwich structure with two aluminium outer layers flanking polyethylene films forming air bubbles. At least two films (2) form the air bubbles (3). They are bonded by heat, evenly over at least one surface to contain at least one inner layer (4) of polyethylene foam. The outer surfaces are covered with a fireproof layer (1). The air bubbles are covered with nylon to increase their mechanical characteristics.

Description

La présente invention est relative à un matériau isolant thermique et acoustique anti-feu notamment pour l'isolation des bâtiments.The present invention relates to a fire-resistant thermal and acoustic insulating material especially for insulating buildings.

Elle vise plus particulièrement un matériau d'isolation thermique et acoustique à base de films à bulles d'air et éventuellement à base de mousse fluide de polyéthylène anti-feu.It relates more particularly to a thermal and acoustic insulation material based on films with air bubbles and possibly based on fluid polyethylene fire-resistant foam.

On connaít par le brevet US-4 038 447, une couverture d'isolation résistante à la flamme constituée d'un film à bulles replié sur lui-même selon une ligne longitudinale et recouvert ensuite d'une couverture en matériau synthétique formant une poche dont les bords latéraux sont assemblés par des agrafes, laissant un libre passage d'air entre l'extérieur et l'intérieur.We know from US Pat. No. 4,038,447, a flame resistant insulation blanket. consisting of a bubble film folded back on itself along a longitudinal line and covered then a cover of synthetic material forming a pocket whose side edges are assembled by staples, leaving a free passage of air between the outside and the inside.

Un tel isolant ne procure pas une résistance suffisante à la flamme malgré la présence d'adjuvants ignifugeants.Such an insulator does not provide sufficient flame resistance despite the presence flame retardants.

L'invention concerne une amélioration d'un brevet américain N° 4 038 447 qui décrit une couverture de protection de béton contre les gelées. L'avantage de celle-ci par rapport à celle utilisée jusqu'alors est son pouvoir ininflammable, sa facilité de transport et sa mise en oeuvre aisée. Cette couverture est constituée de deux nappes de film à bulles d'air revêtues d'un matériau ininflammable assemblées ensemble par un grafage sur le pourtour de la couverture et la mise en place de rivets sur le reste de la surface. Il subsiste cependant un passage d'air au sein de la couverture ne permettant pas d'obtenir des assurances de sécurité suffisantes vis à vis de la flamme ainsi qu'un amoindrissement des caractéristiques thermiques escomptées. The invention relates to an improvement to US Patent No. 4,038,447 which describes a concrete protection cover against frost. The advantage of this one compared to that used until now is its non-flammable power, its ease of transport and its implementation easy. This cover consists of two layers of air bubble film coated with a non-flammable material assembled together by graffiti around the edge of the cover and placing rivets on the rest of the surface. There is however an air passage at the within the cover does not allow obtaining sufficient security assurances vis-à-vis of the flame as well as a reduction in the expected thermal characteristics.

Le brevet français 2 616 377, consiste en une amélioration du brevet américain. Au lieu d'un agrafage sur le pourtour et la mise en place de rivet sur la surface, il s'agit de souder thermiquement les bords de la couverture l'intérêt étant d'éviter l'agrafage des deux nappes constituant le produit. Cependant, il subsiste les contraintes rencontrées avec le produit selon le brevet américain :

  • lors des découpes, il faut réassembler les deux nappes par agrafage. Il est même conseillé de protéger le joint avec un adhésif aluminium. Dans le cas contraire, il y a un risque de remplissage de la poche ainsi formée avec des produits qui peuvent nuire à l'efficacité du produit (qualités isolantes amoindries, risques d'inflammation plus importants). Cette poche reste de même un endroit privilégié pour la nidification des rongeurs.
  • s'agissant d'un produit d'isolation de bâtiment, le problème des ponts thermiques n'est pas résolu. Les bulles d'air étant écrasées lors du soudage thermique, il faut prévoir un chevauchement entre les laies en juxtaposant une feuille d'aluminium froide sur une feuille d'aluminium chaude.
French patent 2,616,377 consists of an improvement to the American patent. Instead of stapling around the perimeter and placing a rivet on the surface, it is a question of thermally welding the edges of the cover, the advantage being to avoid stapling the two plies constituting the product. However, there remain the constraints encountered with the product according to the American patent:
  • when cutting, the two layers must be reassembled by stapling. It is even advisable to protect the seal with an aluminum adhesive. Otherwise, there is a risk of filling the pocket thus formed with products which can affect the effectiveness of the product (reduced insulating qualities, greater risk of ignition). This pocket also remains a privileged place for nesting rodents.
  • in the case of a building insulation product, the problem of thermal bridges is not resolved. The air bubbles being crushed during thermal welding, it is necessary to provide an overlap between the lanes by juxtaposing a cold aluminum sheet on a hot aluminum sheet.

Le produit est assemblé de telle manière que les faces aluminium soient côté extérieur et soudées sur les côtés des deux feuilles dans la longueur.The product is assembled in such a way that the aluminum sides are on the outside and welded to the sides of the two sheets lengthwise.

Le principal inconvénient de ce type de fabrication réside dans le fait que lorsqu'il s'agit de couper sur la longueur ou la largeur, il demeure deux feuilles, et il faut les assembler et les agrafer, ou mettre un autocollant aluminium pour assurer l'étanchéité.The main drawback of this type of manufacturing is that when it comes to cut lengthwise or widthwise, two leaves remain, and they must be joined and staple, or put an aluminum sticker to seal.

On connaít déjà des films à bulles d'air notamment en polyéthylène. Ces films sont en général utilisés pour l'emballage ou encore à titre d'isolant thermique. Les mousses en polyéthylène sont en général utilisées en protection acoustique.We already know air bubble films including polyethylene. These films are generally used for packaging or as thermal insulation. Polyethylene foams are generally used in acoustic protection.

Ces films à bulles d'air et ces mousses ont essentiellement pour avantage d'être légers, peu coûteux et peu épais par rapport aux caractéristiques mécaniques et d'isolation thermique et acoustique qu'ils procurent. These air bubble films and these foams essentially have the advantage of being light, little expensive and thin compared to the mechanical and thermal insulation characteristics and acoustics they provide.

Par ailleurs, l'isolant thermique et acoustique le plus couramment utilisé dans les bâtiments est la laine de verre. Ce produit a essentiellement comme avantage d'être peu coûteux. Cependant, il a comme inconvénient d'être épais et lourd, inflammable et surtout délicat et désagréable à manipuler du fait des poussières de verre qu'il engendre dans son environnement. Ainsi les personnes manipulant régulièrement la laine de verre ne doivent pas être allergiques à la poussière de verre et sont souvent sujettes à des irritations, voire des lésions.In addition, the most commonly used thermal and acoustic insulation in the buildings is glass wool. This product basically has like advantage of being inexpensive. However, it has the disadvantage of being thick and heavy, flammable and above all delicate and unpleasant to handle makes glass dust which it generates in its environment. So people handling glass wool regularly should not be allergic to glass dust and are often prone to irritation, even lesions.

On connaít également le document NL-A-7603863 qui décrit un matériau isolant comportant un sandwich formé par au moins deux films de matière synthétique renfermant des bulles d'air, lesdits films étant assemblés et recouverts sur au moins une de leur face externe par un revêtement de protection.We also know the document NL-A-7603863 which describes a material insulator comprising a sandwich formed by at least two films of material synthetic material containing air bubbles, said films being assembled and covered on at least one of their external face by a coating of protection.

L'invention a pour objet de procurer un film à bulles d'air et une mousse de polyéthylène qui soient totalement inaltérables lorsque les matériaux sont exposés aux rayonnements ultraviolets et qu'ils représentent de bonnes caractéristiques de résistance mécanique et de tenue à la flamme et à la chaleur tout en ayant une bonne caractéristique acoustique.The object of the invention is to provide an air bubble film and a foam polyethylene which are completely unalterable when the materials are exposed to ultraviolet radiation and that they represent good characteristics of mechanical resistance and resistance to flame and heat while having a good acoustic characteristic.

L'invention a également pour objet de procurer un isolant thermique et acoustique anti-feu notamment pour l'isolation des bâtiments, bureaux et industrie qui soit léger, peu épais, inaltérable lorsqu'ils sont exposés aux rayons ultraviolets suffisamment résistant à la flamme pour satisfaire aux normes exigées dans la construction des bâtiments, peu coûteux et qui soit propre et facile à manipuler.The object of the invention is also to provide a thermal insulator and fire-resistant acoustics especially for the insulation of buildings, offices and industry that is light, thin, unalterable when exposed to ultraviolet rays sufficiently flame resistant to meet the standards required in the construction of buildings, inexpensive and which is clean and easy to handle.

A cet effet, l'invention concerne un matériau isolant conforme à la revendication 1. To this end, the invention relates to an insulating material in accordance with the claim 1.

L'invention concerne également un procédé de fabrication d'un matériau isolant conforme à la revendication 14.The invention also relates to a method of manufacturing a material. insulator according to claim 14.

D'autres caractéristiques et avantages de l'invention apparaítront à la lecture de la description suivante se référant aux figures annexées dans lesquelles :

  • La figure 1 est une vue schématique en coupe transversale d'une épaisseur du film à bulles d'air permettant de réaliser l'isolant thermique et acoustique selon l'invention.
  • La figure 2 est une vue schématique en coupe transversale à moindre échelle que la figure 1 d'un mode de réalisation préférentiel d'un isolant thermique et acoustique anti-feu selon l'invention. Les proportions en épaisseur étant exagérées et non conforme à la réalité pour plus de clarté.
  • La figure 3 représente un dispositif pour la mise en oeuvre d'un procédé de fabrication d'un film selon l'invention.
  • La figure 4 est une vue schématique en coupe transversale d'une épaisseur du film à bulles d'air selon l'invention permettant de réaliser un isolant thermique anti-feu.
  • La figure 5 est une vue schématique en coupe transversale de trois épaisseurs illustrant notamment la pose des films isolants avec le recouvrement sur la surface d'aluminium à l'endroit du joint d'un autocollant aluminium pour permettre une parfaite isolation anti-feu.
Other characteristics and advantages of the invention will appear on reading the following description referring to the appended figures in which:
  • Figure 1 is a schematic cross-sectional view of a thickness of the air bubble film for producing the thermal and acoustic insulation according to the invention.
  • Figure 2 is a schematic cross-sectional view on a smaller scale than Figure 1 of a preferred embodiment of a thermal and acoustic fire insulation according to the invention. The proportions in thickness being exaggerated and not in conformity with reality for more clarity.
  • FIG. 3 represents a device for implementing a method of manufacturing a film according to the invention.
  • Figure 4 is a schematic cross-sectional view of a thickness of the air bubble film according to the invention for producing a fire-resistant thermal insulator.
  • Figure 5 is a schematic cross-sectional view of three thicknesses illustrating in particular the installation of the insulating films with the covering on the aluminum surface at the location of the seal with an aluminum sticker to allow perfect fire insulation.

Selon un mode préféré de réalisation du matériau isolant selon l'invention, il comporte principalement deux films 2 de matière synthétique renfermant des bulles 3, notamment des bulles d'air régulièrement réparties, mais éventuellement de densité différente, et dont chacune des faces externes des films formant l'isolant est recouverte d'un revêtement 1 de protection , tel que notamment une couche continue comportant de l'aluminium et qui est soudée sur au moins une des deux faces.According to a preferred embodiment of the insulating material according to the invention, it comprises mainly two films 2 of synthetic material containing bubbles 3, in particular air bubbles regularly distributed, but possibly of different density, and each of which outer faces of the films forming the insulator is covered with a protective coating 1, such as in particular a continuous layer comprising aluminum and which is welded on to minus one of the two faces.

Selon un premier mode de réalisation, au moins deux films 2 sont rendus solidaires au niveau de leur face non revêtues de la couche de protection, par une opération de chauffage qui permet le soudage uniforme par fusion thermoplastique.According to a first embodiment, at least two films 2 are made integral at the level of their face not coated with the protective layer, by a heating operation which allows uniform welding by thermoplastic fusion.

Selon un deuxième mode de réalisation de l'isolant objet de l'invention, on interpose entre au moins deux films 2, au moins une couche 4 de matière isolante, d'épaisseur variable, telle que notamment une couche de mousse polyéthylène fluide en nappe.According to a second embodiment of the insulation object of the invention, there is interposed between the at least two films 2, at least one layer 4 of insulating material, of variable thickness, such as in particular a layer of fluid polyethylene foam in a sheet.

En dessous et en dessus de cette couche de mousse polyéthylène fluide 4 se solidarise à chaud, de manière similaire au premier mode de réalisation, un film synthétique 2 à bulles 3 ayant une couche d'aluminium 1. La couche de matière synthétique à bulles est, par exemple, une couche de polyéthylène ignifugéBelow and above this layer of fluid polyethylene foam 4 solidifies when hot, similarly to the first embodiment, a synthetic film 2 with bubbles 3 having a aluminum layer 1. The bubble plastic layer is, for example, a layer flame retardant polyethylene

Finalement l'isolant selon l'invention peut comporter une pluralité d'assemblage constitué d'au moins deux films de bulles rendus solidaires sur l'une de leur face, les autres faces étant recouvertes d'une couche d'aluminium 1; étant entendu que selon une variante, on interpose dans l'un au moins des assemblages de films à bulles , au moins une couche d'épaisseur variable de mousse isolante 4.Finally, the insulator according to the invention can comprise a plurality of assemblies consisting of at least at least two films of bubbles made integral on one of their faces, the other faces being covered with a layer of aluminum 1; it being understood that according to a variant, one interposes in at least one of the bubble film assemblies, at least one layer of variable thickness insulating foam 4.

Les films selon l'invention sont opaques aux rayonnements, reflètent les rayonnements et sont étanches aux liquides et/ou aux gaz.The films according to the invention are opaque to radiation, reflect radiation and are impervious to liquids and / or gases.

Les mousses de polyéthylène sont ignifugées et bonnes réceptrices des fréquences acoustiques. En utilisant des bulles de dimensions différentes, réparties sur la surface du film selon une densité désirée, on peut ajuster la réponse en fréquence du film de manière, grâce à la fréquence spécifique à la résonance de la bulle, à annuler la propagation du son.Polyethylene foams are flame retardant and good receptors of acoustic frequencies. Using bubbles of different dimensions, distributed over the surface of the film according to a desired density, we can adjust the frequency response of the film so, thanks to the frequency specific to the resonance of the bubble, to cancel the propagation of the sound.

Les essais réalisés sur un isolant thermique et acoustique anti-feu selon l'invention ont montré des caractéristiques de résistance mécanique et de tenue à la flamme tout à fait surprenantes ainsi que sur les basses et hautes fréquences.Tests carried out on a fire-resistant thermal and acoustic insulator according to the invention have shown quite surprising mechanical resistance and flame resistance characteristics as well as low and high frequencies.

Selon une caractéristique de l'invention, la couche d'aluminium 1 est une pellicule d'aluminium rapportée sur une pellicule de polyéthylène qui est soudée sur la couche de matière synthétique 2 à bulles 3.According to a characteristic of the invention, the aluminum layer 1 is an aluminum film attached to a polyethylene film which is welded to the layer of synthetic material 2 bubble 3.

Les différentes épaisseurs de films étant soudées à chaud sur l'ensemble de leurs surfaces ainsi une parfaite étanchéité est faite et lors de la pose et des découpes un simple collage des bords suffit à recréer la surface isolante en ayant bien soin de recouvrir les joints d'un film aluminium autocollant 5 d'une largeur minimum de 5 cm classé au feu MO/M1The different thicknesses of films being heat sealed on all of their surfaces as well a perfect seal is made and during installation and cutting a simple bonding of the edges suffices to recreate the insulating surface, taking care to cover the joints with an aluminum film sticker 5 with a minimum width of 5 cm fire rated MO / M1

A titre d'exemple non limitatif, l'isolant selon l'invention comporte plusieurs épaisseurs d'un minimum de 7 mm comportant au moins deux films de bulles d'air ignifugé, bulle de 10 mm ayant 3,5 mm d'épaisseur. Pour l'augmentation des épaisseurs, on utilise des bulles de 18 mm ayant 7 mm d'épaisseur pour avoir une épaisseur maximale de 28 mm. Pour les épaisseurs allant jusqu'à 50 mm, on prévoit une bulle de 30 mm ayant une épaisseur de 14 mm.By way of nonlimiting example, the insulator according to the invention has several thicknesses of a minimum of 7 mm comprising at least two films of flame-retardant air bubbles, 10 mm bubble having a thickness of 3.5 mm. To increase thicknesses, use 18 mm bubbles 7 mm thick to have a maximum thickness of 28 mm. For thicknesses up to 50 mm, a 30 mm bubble having a thickness of 14 mm is provided.

Pour obtenir un film à bulles utilisable pour former un assemblage isolant selon l'invention, le polyéthylène en bulle est mélangé dans un silo mélangeur (20) aux adjuvants permettant de l'ignifuger et aux autres additifs éventuels (colorants...), par la suite on mélange par exemple 95% de polyéthylène avec 3 % d'aluminium 50 et 2 % de colorants.To obtain a bubble film which can be used to form an insulating assembly according to the invention, the bubble polyethylene is mixed in a mixing silo (20) with adjuvants allowing flame retardant and other possible additives (dyes, etc.), for example, we mix 95% polyethylene with 3% aluminum 50 and 2% dyes.

Pour former les bulles on utilise, un tambour (26) à creux (27) sur lequel on enroule une bande (24) de polyéthylène chaud, issue d'un dispositif d'extrusion/laminage (21) pour former des bulles avec cette bande (24) un rouleau (31) plaquant et soudant une deuxième bande (25) de matière synthétique chaude, notamment de polyéthylène chaud contre la première bande (24) enroulée sur le tambour (26).To form the bubbles, a hollow drum (26) is used on which a strip is wound. (24) of hot polyethylene, from an extrusion / rolling device (21) to form bubbles with this strip (24) a roller (31) plating and welding a second strip (25) of hot synthetic material, especially hot polyethylene against the first strip (24) wound on the drum (26).

L'installation comprend un tambour (32) d'alimentation sur lequel la feuille aluminium est enroulée, et des moyens (33) de préchauffage de la feuille d'aluminium disposée entre le tambour (32) d'alimentation et les moyens (34) permettant de plaquer et de souder la feuille d'aluminium sur la couche de matière synthétique à bulles en sortie de tambour (26). Les moyens (33) de préchauffage sont constitués d'un rouleau (33) maintenu chaud et venant au contact de la feuille d'aluminium, pour chauffer une pellicule de polyéthylène de cette feuille à travers la pellicule d'aluminium.The installation includes a feed drum (32) on which the aluminum foil is wound, and means (33) for preheating the aluminum foil disposed between the supply drum (32) and means (34) for pressing and welding the sheet aluminum on the bubble plastic layer at the outlet of the drum (26). The preheating means (33) consist of a roller (33) kept hot and coming to the aluminum foil contact, to heat a polyethylene film from this foil to through the aluminum foil.

L'isolant selon l'invention est constitué de plusieurs épaisseurs de films à bulles d'air superposées les unes sur les autres et associées les unes aux autres par leurs surfaces soudées à chaud. Les films de 30 microns d'aluminium étant soudés à chaud sur la surface soient toujours tournée vers l'extérieur et constituent les faces extérieurs de la figure 1. Les essais ont été menés et ont montré de façon surprenante qu'un isolant selon l'invention à une résistance importante vis à vis du feu (classement M1) une durée de vie supérieure à 10 ans classé imputrescible et 0 à l'humidité par le CEBTP.The insulation according to the invention consists of several thicknesses of air bubble films superimposed on each other and associated with each other by their surfaces welded to hot. The 30 micron aluminum films being heat welded to the surface are always turned outwards and constitute the external faces of FIG. 1. The tests were carried out and surprisingly showed that an insulator according to the invention with significant resistance to fire (classification M1) a service life of more than 10 years classified rot-proof and 0 to humidity by CEBTP.

L'invention consiste dans l'amélioration du produit isolant dans sa nouvelle conception, de coller à chaud les films de bulles d'air entre elles de telle manière que lorsque nous faisons des découpes que le produit reste entier dans ses épaisseurs et étanche. The invention consists in improving the insulating product in its new design, hot glue the films of air bubbles together so that when we make cuts that the product remains whole in its thicknesses and waterproof.

La deuxième amélioration c'est de laisser dépasser de gauche et droite du produit un décalage pour une meilleure étanchéité thermique et phonique. Nous finissons par un autocollant classé MO/M1 en aluminium pour que le produit soit anti-feu et classé M1.The second improvement is to let the left and right of the product exceed an offset for better thermal and soundproofing. We end with a classified sticker MO / M1 in aluminum so that the product is fireproof and classified M1.

L'invention concerne donc, un matériau isolant phonique et thermique sur la base de films à bulles d'air et d'une enveloppe d'un film d'aluminium soudé à chaud pour pouvoir résister au feu Le matériau issu de la fabrication par la superposition de films de polyéthylène ignifugé à bulles s'assemble par collage à chaud pour former un sandwich pouvant se découper sans avoir à reconstituer le produit isolant par agrafage.The invention therefore relates to a sound and thermal insulating material on the basis of films with air bubbles and an envelope of hot-welded aluminum film to be able to resist fire The material resulting from the manufacture by the superimposition of flame retardant polyethylene films with bubbles assembled by hot gluing to form a sandwich that can be cut without having to reconstitute the insulating product by stapling.

Pour avoir une isolation parfaite, les bords suivants la figure montre un assemblage parfait par collage à chaud pour former un sandwich pouvant se découper sans avoir à reconstituer le produit isolant par agrafage.To have a perfect insulation, the following edges the figure shows a perfect assembly by hot gluing to form a sandwich that can be cut without having to reconstitute the insulating product by stapling.

L'isolant thermique et phonique anti-feu en forme de nappe, notamment pour l'isolant des bâtiments est constitué d'au moins deux épaisseurs superposées l'une sur l'autre de façon que les couches comportant de l'aluminium des épaisseurs forme les faces extérieures de l'isolantThe thermal and phonic insulation in the form of a sheet, in particular for the insulation of buildings consists of at least two thicknesses superimposed on each other so that the layers comprising aluminum thicknesses form the outer faces of the insulation

Selon une autre caractéristique avantageuse de l'invention et afin d'obtenir une résistance mécanique notamment à la compression plus importante, on prévoit. d'ajouter un revêtement en Nylon sur les bulles d'air, ce qui permet d'améliorer ces caractéristiques. Le produit ainsi créé peut être ainsi utilisé pour l'isolation dans les dalles béton, soit directement sous la dalle ou sous la chape de finition. Il admet une surcharge importante de l'ordre de 5 tonnes/m2, le domaine d'utilisation étant de 1 tonne/m2.According to another advantageous characteristic of the invention and in order to obtain a resistance mechanical, in particular at greater compression, is expected. add a coating Nylon on the air bubbles, which improves these characteristics. The product as well created can thus be used for insulation in concrete slabs, either directly under the slab or under the finishing screed. It admits a significant overload of around 5 tonnes / m2, the area of use being 1 ton / m2.

Lors de l'assemblage des nappes, il n'y a pas d'écrasement du produit sur le pourtour ni détérioration des bulles d'air, le pouvoir isolant du produit est donc le même sur toute la surface. Il n'y a plus de risque de pont thermique et phonique. Pour améliorer encore ce principe, un décalage des deux nappes supérieures et inférieures permet d'avoir un chevauchement des nappes sans création de pont thermique. Il est possible de coller les lèvres entre elles et former ainsi une totale continuité de l'isolation que l'on recouvre d'un adhésif aluminium classé MO/M1 afin d'avoir toutes les garanties de sécurité et de performances thermiques.When assembling the layers, there is no crushing of the product around the perimeter or deterioration of air bubbles, the insulating power of the product is therefore the same over the entire area. There is no longer any risk of thermal and sound bridges. To further improve this principle, an offset of the two upper and lower layers allows to have a overlapping of the layers without creating a thermal bridge. It is possible to stick the lips between them and thus form a total continuity of the insulation which is covered with an adhesive aluminum classified MO / M1 in order to have all the guarantees of safety and performance thermal.

Le produit collé sur toute sa surface permet une meilleure rigidité de l'isolant qui est ainsi plus facile à mettre en place et a une meilleure tenue (pas de création de ventre lors de l'emploi sous toiture ou en plafond).The product bonded over its entire surface allows better rigidity of the insulation which is more easy to set up and has better hold (no creation of belly when used under roof or ceiling).

Les assemblages isolants selon l'invention peuvent être, soit recouverts d'un revêtement, soit être collés sur un matériau de correction acoustique tel que notamment un panneau rigide (plâtre, bois, panneau de décor, panneau en matériau composite (fibre de verre, fibre de carbone) d'un seul ou des deux côtés avec un lattage ou non en bois ou en matière synthétique et être munis d'un dispositif d'étanchéité entre les panneaux afin d'éviter les ponts thermiques et phoniques et éviter les détériorations par l'humidité.The insulating assemblies according to the invention can be either covered with a coating or be glued to an acoustic correction material such as in particular a rigid panel (plaster, wood, decor panel, composite material panel (fiberglass, fiber carbon) on one or both sides with or without battening of wood or synthetic material and be fitted with a sealing device between the panels in order to avoid thermal bridges and phonic and avoid deterioration by humidity.

Le produit ainsi obtenu est réellement adapté à l'isolation des bâtiments mais aussi dans l'industrie pour les gaines de ventilation des locaux bruyants, des bateaux, des caravanes...The product thus obtained is really suitable for insulating buildings but also in industry for ventilation ducts in noisy rooms, boats, caravans ...

Il demeure bien entendu que la présente invention n'est pas limitée aux exemples de réalisation décrits et représentés ci-dessus, mais qu'elle en englobe toutes les variantes.It remains to be understood that the present invention is not limited to the exemplary embodiments described and represented above, but that it encompasses all variants thereof.

Claims (17)

  1. Insulating material including a sandwich formed by at least two films (2) of synthetic material containing air bubbles (3), the said films being assembled together and covered on at least one of their external faces by a protective coating (1), characterised in that the two films (2) of synthetic material are made uniformly integral at one of their respective faces by a hot welding method, so as to be combined with each other over their whole surfaces.
  2. Material according to Claim 1, characterised in that it includes at least one layer (4) of insulating material, integrated between the two films (2) of synthetic material.
  3. Material according to Claim 2, characterised in that the layer (4) of insulating material is a layer of polyurethane foam.
  4. Material according to any of Claims 1 to 3, characterised in that each of the external faces of the films (2) is covered with a protective coating (1).
  5. Material according to any of Claims 1 to 4, characterised in that the protective coating (1) is formed by sheets, films, skins or layers of aluminium.
  6. Material according to any of Claims 1 to 5, characterised in that the films (2) of synthetic material are formed by a film or skin of polyethylene or a layer of polyethylene foam.
  7. Material according to Claim 6, characterised in that the polyethylene film and the layer of polyethylene foam are flame-retarded.
  8. Material according to any of Claims 1 to 8, characterised in that the different thicknesses of films, and the protective coating or coatings (1), are hot-welded over their whole surfaces.
  9. Material according to any of Claims 1 to 8, characterised in that it has a nylon coating on the air bubbles, which improves its mechanical characteristics.
  10. Material according to any of Claims 1 to 9, characterised in that it has at least two films of synthetic material containing air bubbles of different dimensions on each of the said films.
  11. Material according to any of Claims 1 to 10, characterised in that it has at least two films of synthetic material containing air bubbles with a different density on each of the said films.
  12. Material according to any of Claims 1 to 11, characterised in that it has a shift in position between the two films of synthetic material so as to allow an overlap.
  13. Material according to any of Claims 1 to 12, characterised in that it includes a plurality of superimposed assemblies.
  14. Method of manufacturing an insulating material according to one of Claims 1 to 13, including a sandwich formed by at least two films of synthetic material containing air bubbles, the said films being connected together and covered on at least one of their faces by a protective coating, characterised in that the thicknesses of films of synthetic materials with air bubbles are superimposed, and are then combined with each other over their whole surfaces by hot welding.
  15. Method according to Claim 14, characterised in that the different thicknesses of films, and the protective coatings, are hot-welded over their whole surfaces.
  16. Method according to Claim 14 or 15, characterised in that at least one layer of insulating material is interposed in at least one of the assemblies of films with bubbles.
  17. Method according to Claim 16, characterised in that it consists of interposing a layer of polyethylene foam.
EP95402931A 1994-12-22 1995-12-22 Fire proof sound and heat insulation material Expired - Lifetime EP0718447B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9415682A FR2728601B1 (en) 1994-12-22 1994-12-22 FIRE-RESISTANT SOUND AND THERMAL INSULATION MATERIALS
FR9415682 1994-12-22
FR9509350 1995-07-26
FR9509350A FR2737234B1 (en) 1995-07-26 1995-07-26 FIREPROOF THERMAL AND SOUND INSULATION MATERIALS

Publications (2)

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EP0718447A1 EP0718447A1 (en) 1996-06-26
EP0718447B1 true EP0718447B1 (en) 2001-06-20

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EP95402931A Expired - Lifetime EP0718447B1 (en) 1994-12-22 1995-12-22 Fire proof sound and heat insulation material

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EP (1) EP0718447B1 (en)
AT (1) ATE202397T1 (en)
DE (1) DE69521397T2 (en)
DK (1) DK0718447T3 (en)
ES (1) ES2158930T3 (en)
PT (1) PT718447E (en)

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EP2602394A1 (en) 2011-12-06 2013-06-12 Alutthermo AG Multilayer insulator

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FR2763616B1 (en) * 1997-05-23 2007-06-15 Paul Riedel THERMAL INSULATION MORE PARTICULARLY ADAPTED TO HEATING FLOORS
GB2328644B (en) * 1997-08-29 1999-07-21 Thermal Economics Limited Improved fire retardent insulation materials
FR2792349B1 (en) 1999-04-16 2001-07-06 Airisol PHONIC AND THERMAL INSULATION
FR2799779B1 (en) 1999-10-15 2002-01-11 Campenon Bernard Sge FIREWALL PARTITION
DE10116574B4 (en) * 2001-04-03 2013-05-08 Wilfried Johann Jung Multi-layer thermal insulation mat made of bubble wrap and IR-reflecting layers
FR2836944B1 (en) 2002-03-06 2006-02-24 Fabrice Rene Bettinger INSULATING MATERIAL WITH TRANSVERSAL WELDING
IL160876A0 (en) * 2004-03-15 2004-08-31 Polyon Barkai Ind 1993 Ltd Insulation structures
PL1626133T3 (en) * 2004-10-06 2006-11-30 Aluthermo Ag Multilayered insulation
FR2910504B1 (en) * 2006-08-31 2011-05-06 Tdi Isolation Antilles BUILDING COATING MATERIAL, THERMALLY INSULATED AND ALSO PREFERABLY PHONIC
FR2905391A1 (en) * 2006-08-31 2008-03-07 Tdi Isolation Antilles Sarl Coating material for use as e.g. building`s roof coating, has thermal insulating component extended on ribbed or wavy foil by using self-adhesive mass, where component is constituted of polyethylene foam between foil and polyester film
FR2905390A1 (en) * 2006-08-31 2008-03-07 Tdi Isolation Antilles Sarl Coating material for use as e.g. building`s roof coating, has thermal insulating component extended on ribbed or wavy foil by using self-adhesive mass, where component is constituted of polyethylene foam between foil and polyester film
FR2907878B1 (en) * 2006-10-31 2009-01-02 Ati Distrib Sarl MULTILAYER TYPE INSULATION
FR2909747B1 (en) * 2006-12-12 2009-01-23 Ati Groupe Sarl MULTILAYER INSULATION FOR INTERNAL INSULATION OF HABITATS
FR2910507B1 (en) * 2006-12-22 2011-03-04 Orion Financement COATING PANEL WITH MULTILAYER THERMAL INSULATION.
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CN102587510B (en) * 2012-02-14 2014-02-19 苏州市君悦新材料科技有限公司 Flame retardant thermal insulation nanomaterial
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RU183532U1 (en) * 2017-09-12 2018-09-25 Сергей Васильевич Корнев MULTILAYER ELASTIC SOUND INSULATING MATERIAL
FR3072985B1 (en) * 2017-10-31 2022-08-12 Orion Financement IMPROVED THIN INSULATION SYSTEM

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EP2602394A1 (en) 2011-12-06 2013-06-12 Alutthermo AG Multilayer insulator
WO2013083382A1 (en) 2011-12-06 2013-06-13 Aluthermo Ag Multilayer insulation

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ES2158930T3 (en) 2001-09-16
DE69521397D1 (en) 2001-07-26
EP0718447A1 (en) 1996-06-26
DK0718447T3 (en) 2001-09-10
PT718447E (en) 2001-12-28
ATE202397T1 (en) 2001-07-15
DE69521397T2 (en) 2002-04-18

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