EP2117948A1 - Heat sealable seal - Google Patents

Heat sealable seal

Info

Publication number
EP2117948A1
EP2117948A1 EP08775689A EP08775689A EP2117948A1 EP 2117948 A1 EP2117948 A1 EP 2117948A1 EP 08775689 A EP08775689 A EP 08775689A EP 08775689 A EP08775689 A EP 08775689A EP 2117948 A1 EP2117948 A1 EP 2117948A1
Authority
EP
European Patent Office
Prior art keywords
heat
film
sealable
seal according
seal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08775689A
Other languages
German (de)
French (fr)
Inventor
Stéphane Triquet
Rémy BISCHOFF
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manufacture Generale de Joints SAS
Original Assignee
Manufacture Generale de Joints SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Manufacture Generale de Joints SAS filed Critical Manufacture Generale de Joints SAS
Publication of EP2117948A1 publication Critical patent/EP2117948A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/04—Discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/045—Discs

Definitions

  • the subject of the invention is a new type of permanent heat-sealable seal.
  • the closure of containers by cap or capsule prior to their first opening can be performed by means of heat sealable seals.
  • seals traditionally comprise a heat-sealable seal intended to be applied to the rim of the container, said seal being permanently associated with a support in contact with the bottom of the stopper or the cap.
  • so-called “heat-sealable” covers consist of the combination, by means of binding agent, of a plastic film chosen according to the nature of the material constituting the container, with a film made of a dielectric material, practice of aluminum, intended to soften by induction or conduction said plastic film with which it is in contact resulting in the sealing of the lid on the rim of the container.
  • the traditional supports used are polyolefin foams and in particular foams of polyethylene or polypropylene with a thickness of between 120 ⁇ m and 250 ⁇ m necessarily having, on at least the face in contact with the bottom of the capsule, a PET film secured with glue.
  • the presence of this film is indispensable in that it avoids any risk of heat sealing the seal on the capsule at the time of the heat sealing operation, insofar as the capsules are generally made of polypropylene (PP) or high density polyethylene (HDPE).
  • the support makes it possible to absorb the tolerances between the bottom of the capsule and / or the stopper.
  • US 2007/007229 discloses a temporary heat seal seal, ie a seal not in one piece, but in two pieces.
  • the support is made of PET expanded and provided on its underside with a thermoplastic film.
  • the lid itself comprises an aluminum foil covered on its underside with a heat-sealing film and on its upper side with a thermoplastic film. The association of the two thermoplastic films of the support and the cover respectively provide the temporary connection.
  • JP 2006/123970 discloses a non-heat sealable seal consisting of a PET foam coated on each side with a polyethylene film.
  • the problem to be solved by the invention is to develop heat sealable seals having the simplest structure possible by limiting as much as necessary the number of elements and therefore the cost of manufacture.
  • the Applicant has found that, quite surprisingly, the substitution of a polyolefin foam, in particular of polyethylene or polypropylene, with a polyester foam in a permanent joint makes it possible to overcome the necessary presence of a PET film. applied to the surface of the support. In a preferred embodiment, the support is thus deprived on its upper face of a polymeric film and more generally of any additional layer of material.
  • a PET film would be applied, for example to improve the surface state of the seal, it would be by coextrusion and not by bonding as is the case in the prior art. In this case, a step in the manufacturing process would be abolished.
  • the subject of the invention is a permanent heat-sealable seal comprising a support associated with a heat-sealable seal on the rim of a receptacle which is characterized in that the support is in the form of an expanded polyester layer.
  • the expanded polyester is chosen from the group comprising polyethylene terephthalate and polylactic acid.
  • the support is made of expanded PET.
  • the expanded PET has a density of between 30 and 500 kg / m 2 , advantageously between 100 and 200 kg / m 2, that is to say a mean density.
  • the thickness of the PET foam is between 50 ⁇ m and 4 mm, advantageously between 100 and 300 ⁇ m, preferably of the order of 150 ⁇ m.
  • the known joints of the prior art comprise a film applied by bonding to the surface of the support intended to be in contact with the bottom of the cap.
  • one of the advantages of PET foam, related to its mechanical characteristics, is to be able to overcome this film.
  • said foam has on its face intended to be in contact with the bottom of the stopper, a PET film applied by coextrusion.
  • the seal portion of the seal is heat sealable.
  • the lid is obtained by combining an upper sheet made of a dielectric material, advantageously aluminum, having a thickness of between 5 and 50 ⁇ m, advantageously between 7 and 40 ⁇ m, and heat-sealing film whose nature is a function of the constituent material of the container.
  • a dielectric material advantageously aluminum
  • the heat-sealing film is made of a material chosen from the group comprising polyethylene, polypropylene or polyester.
  • the aluminum foil and the heat-sealing film are combined by means of a binder such as, for example, an isocyanate-hydroxyl two-component adhesive.
  • the aluminum foil is separated from the heat-sealing film by a plastic film, oriented polypropylene, or preferably PET to enhance the joint's non-tearability.
  • the plastic film is secured to the heat-sealing film by gluing with a glue of the type, for example two-component isocyanate-hydroxyl glue.
  • the lid and the support are associated by means of a permanent binder, for example of the two-component isocyanate-hydroxyl glue type.
  • Figure 1 is a sectional diagram of the heat sealable seal of the invention.
  • Figure 2 is a sectional view of a second embodiment of the heat seal seal of the invention.
  • the sealable seal of the invention has two parts, respectively a support (1) and a heat-sealable seal (2), the seal and the support being joined by means of a permanent adhesive (3) such as a two-component isocyanate adhesive hydroxyl.
  • the support according to the invention is in the form of a polyethylene terephthalate foam (4) having a thickness of 150 ⁇ m and a density equal to 150 kg / m 2 .
  • the operculum portion is conventionally obtained by combining an aluminum foil (5) with a thickness of 20 ⁇ m and a heat-sealable film (6) of low density polyethylene with a thickness of 40 ⁇ m.
  • the aluminum foil and the heat-sealable film are combined by means of a binder (7) in the form of an isocyanate-hydroxyl two-component adhesive.
  • the lid has, between the aluminum foil (5) and the heat-sealable film (6), an additional film of polyethylene terephthalate (9) made integral with the heat-sealable film at medium, a binder identical to the previous one.

Abstract

The invention relates to a heat-sealable seal including a substrate (1) associated with a heat-sealable lid (2) on the mouth of a vessel, characterised in that the substrate is made in the form of an expanded polyester layer (4), in that the lid includes an aluminium foil (5) and a heat-sealable film (6) to be applied on the mouth of the vessel, the aluminium foil and the film being connected by a binder (7), and in that the substrate and the lid are associated via a permanent adhesive (3).

Description

JOINT THERMOSCELLABLE THERMOSCELLABLE JOINT
L'invention a pour objet un nouveau type de joint thermoscellable permanent.The subject of the invention is a new type of permanent heat-sealable seal.
L'obturation de récipients par bouchon ou capsule préalablement à leur première ouverture peut être effectuée au moyen de joints thermoscellables. Ces joints comprennent traditionnellement un opercule thermoscellable destiné à être appliqué sur le buvant du récipient, ledit opercule étant associé de manière permanente à un support en contact avec le fond du bouchon ou de la capsule.The closure of containers by cap or capsule prior to their first opening can be performed by means of heat sealable seals. These seals traditionally comprise a heat-sealable seal intended to be applied to the rim of the container, said seal being permanently associated with a support in contact with the bottom of the stopper or the cap.
De manière connue, les opercules dits "thermoscellables" consistent en l'association, au moyen d'agent liant, d'un film plastique choisi en fonction de la nature du matériau constitutif du récipient, avec un film réalisé en un matériau diélectrique, en pratique de l'aluminium, destiné à ramollir par induction ou conduction ledit film plastique avec lequel il est en contact aboutissant au scellement de l'opercule sur le buvant du récipient.In known manner, so-called "heat-sealable" covers consist of the combination, by means of binding agent, of a plastic film chosen according to the nature of the material constituting the container, with a film made of a dielectric material, practice of aluminum, intended to soften by induction or conduction said plastic film with which it is in contact resulting in the sealing of the lid on the rim of the container.
S 'agissant du support, les supports traditionnels utilisés sont des mousses polyoléfines et en particulier des mousses de polyéthylène ou de polypropylène d'une épaisseur comprise entre 120 μm et 250 μm présentant nécessairement, sur au moins la face en contact avec le fond de la capsule, un film PET solidarisé au moyen de colle. La présence de ce film est indispensable en ce qu'elle évite tout risque de thermosoudage du joint sur la capsule au moment de l'opération de thermoscellage, dans la mesure ou les capsules sont généralement réalisées en polypropylène (PP) ou polyéthylène haute densité (PEHD). En outre, elle permet, en combinaison avec la feuille d'aluminium, d'améliorer la rigidité du joint évitant ainsi tout risque de sortie accidentelle du joint de la capsule lorsque les opercules thermoscellants sont livrés déjà incorporés dans le fond du bouchon ou de la capsule, l'opération de thermoscellage proprement dite étant effectuée ultérieurement. Enfin, le support permet d'absorber les tolérances entre le fond de la capsule et/ou du bouchon.With regard to the support, the traditional supports used are polyolefin foams and in particular foams of polyethylene or polypropylene with a thickness of between 120 μm and 250 μm necessarily having, on at least the face in contact with the bottom of the capsule, a PET film secured with glue. The presence of this film is indispensable in that it avoids any risk of heat sealing the seal on the capsule at the time of the heat sealing operation, insofar as the capsules are generally made of polypropylene (PP) or high density polyethylene ( HDPE). In addition, it allows, in combination with the aluminum sheet, to improve the rigidity of the seal thus avoiding any risk of accidental release of the seal of the capsule when the heat sealing lids are delivered already incorporated in the bottom of the cap or the capsule, the heat sealing operation itself being performed later. Finally, the support makes it possible to absorb the tolerances between the bottom of the capsule and / or the stopper.
Le document US 2007/007229 décrit un joint thermoscellable temporaire, c'est-à-dire un joint non pas en une seule pièce, mais en deux pièces. Le support est réalisé en PET expansé et muni sur sa face inférieure d'un film thermoplastique. L'opercule proprement dit comprend une feuille d'aluminium recouverte sur sa face inférieure d'un film thermoscellant et sur sa face supérieure d'un film thermoplastique. L'association des deux films thermoplastiques respectivement du support et de l'opercule assurent la liaison temporaire.US 2007/007229 discloses a temporary heat seal seal, ie a seal not in one piece, but in two pieces. The support is made of PET expanded and provided on its underside with a thermoplastic film. The lid itself comprises an aluminum foil covered on its underside with a heat-sealing film and on its upper side with a thermoplastic film. The association of the two thermoplastic films of the support and the cover respectively provide the temporary connection.
Le document JP 2006/123970 décrit un joint non thermoscellable constitué d'une mousse de PET recouverte sur chaque face d'un film de polyéthylène.JP 2006/123970 discloses a non-heat sealable seal consisting of a PET foam coated on each side with a polyethylene film.
Le problème que se propose de résoudre l'invention est de mettre au point des joints thermoscellables présentant une structure la plus simple possible en limitant au maximum le nombre d'éléments nécessaires et par conséquent, le coût de fabrication.The problem to be solved by the invention is to develop heat sealable seals having the simplest structure possible by limiting as much as necessary the number of elements and therefore the cost of manufacture.
Le Demandeur a constaté que de manière tout à fait surprenante, la substitution d'une mousse polyoléfine, en particulier de polyéthylène ou de polypropylène, par une mousse polyester dans un joint permanent permettait de s'affranchir de la présence nécessaire d'un film PET appliqué à la surface du support. Dans un mode de réalisation préféré, le support est donc dépourvu sur sa face supérieure d'un film polymérique et plus généralement de toute couche supplémentaire de matériau. En outre, quand bien même un film PET serait appliqué, par exemple pour améliorer l'état de surface du joint, il le serait par coextrusion et non par collage comme c'est le cas dans l'art antérieur. On supprimerait donc dans cette hypothèse une étape dans le procédé de fabrication.The Applicant has found that, quite surprisingly, the substitution of a polyolefin foam, in particular of polyethylene or polypropylene, with a polyester foam in a permanent joint makes it possible to overcome the necessary presence of a PET film. applied to the surface of the support. In a preferred embodiment, the support is thus deprived on its upper face of a polymeric film and more generally of any additional layer of material. In addition, even if a PET film would be applied, for example to improve the surface state of the seal, it would be by coextrusion and not by bonding as is the case in the prior art. In this case, a step in the manufacturing process would be abolished.
Dès lors, l'invention a pour objet un joint thermoscellable permanent comprenant un support associé à un opercule thermoscellable sur le buvant d'un récipient qui se caractérise en ce que le support se présente sous la forme d'une couche de polyester expansé.Therefore, the subject of the invention is a permanent heat-sealable seal comprising a support associated with a heat-sealable seal on the rim of a receptacle which is characterized in that the support is in the form of an expanded polyester layer.
Selon une première caractéristique, le polyester expansé est choisi dans le groupe comprenant le polyéthylène téréphtalate et l'acide polylactique.According to a first characteristic, the expanded polyester is chosen from the group comprising polyethylene terephthalate and polylactic acid.
Dans un mode de réalisation avantageux, le support est réalisé en PET expansé.In an advantageous embodiment, the support is made of expanded PET.
Dans cette hypothèse, le PET expansé a une densité comprise entre 30 et 500 kg/m2, avantageusement comprise entre 100 et 200 kg/m2 c'est-à-dire une densité moyenne.In this case, the expanded PET has a density of between 30 and 500 kg / m 2 , advantageously between 100 and 200 kg / m 2, that is to say a mean density.
Selon une autre caractéristique, l'épaisseur de la mousse PET est comprise entre 50 μm et 4 mm, avantageusement entre 100 et 300 μm, de préférence de l'ordre de 150 μm. Comme déjà dit, les joints connus de l'art antérieur comprennent un film appliqué par collage à la surface du support destiné à être en contact avec le fond du bouchon. Or, il apparaît qu'un des avantages de la mousse PET, lié à ses caractéristiques mécaniques, est de pouvoir s'affranchir de ce film. Néanmoins et dans un autre mode de réalisation, pour améliorer l'état de surface de la mousse PET, ladite mousse présente sur sa face destinée à être en contact avec le fond du bouchon, un film de PET appliqué par coextrusion.According to another characteristic, the thickness of the PET foam is between 50 μm and 4 mm, advantageously between 100 and 300 μm, preferably of the order of 150 μm. As already said, the known joints of the prior art comprise a film applied by bonding to the surface of the support intended to be in contact with the bottom of the cap. However, it appears that one of the advantages of PET foam, related to its mechanical characteristics, is to be able to overcome this film. Nevertheless, and in another embodiment, to improve the surface state of the PET foam, said foam has on its face intended to be in contact with the bottom of the stopper, a PET film applied by coextrusion.
Selon une autre caractéristique, la partie opercule du joint est thermoscellable.According to another feature, the seal portion of the seal is heat sealable.
Dans ce cas, l'opercule est obtenu par association d'une feuille supérieure réalisée en un matériau diélectrique, avantageusement l'aluminium, d'une épaisseur comprise en pratique entre 5 et 50 μm, avantageusement entre 7 et 40 μm et d'un film thermoscellant dont la nature est fonction de la matière constitutive du récipient.In this case, the lid is obtained by combining an upper sheet made of a dielectric material, advantageously aluminum, having a thickness of between 5 and 50 μm, advantageously between 7 and 40 μm, and heat-sealing film whose nature is a function of the constituent material of the container.
En pratique, le film thermoscellant est réalisé en un matériau choisi dans le groupe comprenant le polyéthylène, le polypropylène ou le polyester.In practice, the heat-sealing film is made of a material chosen from the group comprising polyethylene, polypropylene or polyester.
Selon une autre caractéristique, la feuille d'aluminium et le film thermoscellant sont associés au moyen d'un liant tel que par exemple une colle bicomposant isocyanate - hydroxyle.According to another characteristic, the aluminum foil and the heat-sealing film are combined by means of a binder such as, for example, an isocyanate-hydroxyl two-component adhesive.
Dans un mode de réalisation perfectionné, la feuille d'aluminium est séparée du film thermoscellant par un film plastique, de polypropylène orienté, ou avantageusement de PET destiné à renforcer l'indéchirabilité du joint. Dans ce cas, le film plastique est solidarisé au film thermoscellant par collage au moyen d'une colle du type par exemple colle bicomposant isocyanate - hydroxyle.In an improved embodiment, the aluminum foil is separated from the heat-sealing film by a plastic film, oriented polypropylene, or preferably PET to enhance the joint's non-tearability. In this case, the plastic film is secured to the heat-sealing film by gluing with a glue of the type, for example two-component isocyanate-hydroxyl glue.
Selon une caractéristique essentielle de l'invention, l'opercule et le support sont associés au moyen d'un liant permanent, par exemple du type colle bicomposant isocyanate - hydroxyle.According to an essential characteristic of the invention, the lid and the support are associated by means of a permanent binder, for example of the two-component isocyanate-hydroxyl glue type.
Bien entendu, la forme du joint thermoscellable de l'invention sera déterminée en fonction de la forme du bouchon. L'invention et les avantages qui en découlent ressortiront bien de la description à l'appui des figures annexées.Of course, the shape of the heat-sealable gasket of the invention will be determined according to the shape of the plug. The invention and the advantages which result therefrom will emerge from the description in support of the appended figures.
La figure 1 est un schéma en coupe du joint thermoscellable de l'invention. La figure 2 est une vue en coupe d'un second mode de réalisation du joint thermoscellable de l'invention.Figure 1 is a sectional diagram of the heat sealable seal of the invention. Figure 2 is a sectional view of a second embodiment of the heat seal seal of the invention.
Le joint scellable de l'invention présente deux parties, respectivement un support (1) et un opercule thermoscellant (2), l'opercule et le support étant réunis au moyen d'un adhésif permanent (3) tel qu'une colle bicomposant isocyanate - hydroxyle.The sealable seal of the invention has two parts, respectively a support (1) and a heat-sealable seal (2), the seal and the support being joined by means of a permanent adhesive (3) such as a two-component isocyanate adhesive hydroxyl.
Le support selon l'invention se présente sous la forme d'une mousse polyéthylène téréphtalate (4) d'une épaisseur de 150 μm et d'une densité égale à 150 kg/m2.The support according to the invention is in the form of a polyethylene terephthalate foam (4) having a thickness of 150 μm and a density equal to 150 kg / m 2 .
La partie opercule est traditionnellement obtenue par association d'une feuille d'aluminium (5) d'épaisseur égale à 20 μm et d'un film thermoscellable (6) de polyéthylène basse densité d'épaisseur 40 μm. La feuille d'aluminium et le film thermoscellable sont associés au moyen d'un liant (7) sous forme d'une colle bicomposant isocyanate - hydroxyle.The operculum portion is conventionally obtained by combining an aluminum foil (5) with a thickness of 20 μm and a heat-sealable film (6) of low density polyethylene with a thickness of 40 μm. The aluminum foil and the heat-sealable film are combined by means of a binder (7) in the form of an isocyanate-hydroxyl two-component adhesive.
Dans un second mode de réalisation, représenté sur la figure 2, l'opercule présente, entre la feuille d'aluminium (5) et le film thermoscellable (6), un film supplémentaire de polyéthylène téréphtalate (9) rendu solidaire du film thermoscellable au moyen, d'un liant identique au précédent.In a second embodiment, shown in FIG. 2, the lid has, between the aluminum foil (5) and the heat-sealable film (6), an additional film of polyethylene terephthalate (9) made integral with the heat-sealable film at medium, a binder identical to the previous one.
L'invention et les avantages qui en découlent ressortent bien de la description qui précède. On note en particulier la substitution des complexes mousse PE/ film PET par une simple mousse PET qui permet de simplifier la fabrication et diminuer le coût des joints. The invention and the advantages derived therefrom are apparent from the foregoing description. In particular, the substitution of the PE foam / PET film complexes by a simple PET foam makes it possible to simplify the manufacture and reduce the cost of the joints.

Claims

REVENDICATIONS
1/ Joint thermoscellable permanent comprenant un support associé à un opercule thermoscellable sur le buvant d'un récipient, caractérisé : - en ce que le support se présente sous la forme d'une couche de polyester expansé, l'opercule comprend une feuille d'aluminium et un film thermoscellable destiné à être appliqué sur le buvant du récipient, la feuille d'aluminium et le film étant solidarisés au moyen d'un agent liant,1 / permanent heat-sealable seal comprising a support associated with a heat sealable cap on the rim of a container, characterized in that: - the support is in the form of an expanded polyester layer, the lid comprises a foil; aluminum and a heat-sealable film intended to be applied to the rim of the container, the aluminum foil and the film being secured by means of a binding agent,
- et en ce que le support et l'opercule sont associés au moyen d'un adhésif permanent.and in that the support and the cover are associated by means of a permanent adhesive.
2/ Joint selon la revendication 1, caractérisé en ce que le polyester est choisi dans le groupe comprenant le polyéthylène téréphtalate et l'acide polylactique.2 / seal according to claim 1, characterized in that the polyester is selected from the group comprising polyethylene terephthalate and polylactic acid.
3/ Joint selon la revendication 2, caractérisé en ce que le polyester expansé est du polyéthylène téréphtalate (PET) expansé.3 / seal according to claim 2, characterized in that the expanded polyester is expanded polyethylene terephthalate (PET).
4/ Joint selon la revendication 3, caractérisé en ce que la mousse PET a une épaisseur comprise entre 100 et 300 μm.4 / seal according to claim 3, characterized in that the PET foam has a thickness between 100 and 300 microns.
5/ Joint selon l'une des revendications 3 ou 4, caractérisé en ce que la mousse PET a une densité comprise entre 30 et 500 kg/m3.5 / seal according to one of claims 3 or 4, characterized in that the PET foam has a density between 30 and 500 kg / m 3 .
6/ Joint selon la revendication 1 , caractérisé en ce que le film thermoscellable est réalisé en un matériau choisi dans le groupe comprenant le polyéthylène, le polypropylène ou le polyester.6 / seal according to claim 1, characterized in that the heat-sealable film is made of a material selected from the group consisting of polyethylene, polypropylene or polyester.
Il Joint selon l'une des revendications 5 ou 6, caractérisé en ce que l'opercule comprend un film PET positionné entre la feuille d'aluminium et le film thermoscellable.Seal according to one of claims 5 or 6, characterized in that the lid comprises a PET film positioned between the aluminum foil and the heat-sealable film.
8/ Joint selon la revendication 1, caractérisé en ce que l'adhésif permanent est une colle bicomposant isocyanate - hydroxyle.8 / Seal according to claim 1, characterized in that the permanent adhesive is a two-component isocyanate-hydroxyl adhesive.
9/ Joint selon l'une des revendications précédentes, caractérisé en ce que le support est dépourvu sur sa face supérieure d'un film polymérique. 9 / seal according to one of the preceding claims, characterized in that the support is free on its upper face of a polymeric film.
EP08775689A 2007-03-14 2008-03-06 Heat sealable seal Withdrawn EP2117948A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0753832A FR2913672B1 (en) 2007-03-14 2007-03-14 THERMOSCELLABLE JOINT
PCT/FR2008/050386 WO2008125784A1 (en) 2007-03-14 2008-03-06 Heat sealable seal

Publications (1)

Publication Number Publication Date
EP2117948A1 true EP2117948A1 (en) 2009-11-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08775689A Withdrawn EP2117948A1 (en) 2007-03-14 2008-03-06 Heat sealable seal

Country Status (3)

Country Link
EP (1) EP2117948A1 (en)
FR (1) FR2913672B1 (en)
WO (1) WO2008125784A1 (en)

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FR2913672A1 (en) 2008-09-19
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