FR2872085A1 - Composite panel for aircraft interior fittings, especially trim, has layer of rigid plastic foam and second layer of resin-impregnated fabric between wood veneer and first layer of resin-impregnated fabric - Google Patents

Composite panel for aircraft interior fittings, especially trim, has layer of rigid plastic foam and second layer of resin-impregnated fabric between wood veneer and first layer of resin-impregnated fabric Download PDF

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Publication number
FR2872085A1
FR2872085A1 FR0451332A FR0451332A FR2872085A1 FR 2872085 A1 FR2872085 A1 FR 2872085A1 FR 0451332 A FR0451332 A FR 0451332A FR 0451332 A FR0451332 A FR 0451332A FR 2872085 A1 FR2872085 A1 FR 2872085A1
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France
Prior art keywords
layer
resin
impregnated fabric
fabric
foam
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Granted
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FR0451332A
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French (fr)
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FR2872085B1 (en
Inventor
Alain Catherineau
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Cat'air Fr
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Individual
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Priority to FR0451332A priority Critical patent/FR2872085B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/10Next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/14Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00Composition of foam
    • B32B2266/08Closed cell foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08Dimensions, e.g. volume
    • B32B2309/10Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105Thickness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2479/00Furniture
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00Vehicles
    • B32B2605/18Aircraft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/04Galleys

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)

Abstract

The composite panel, comprising a central honeycomb core (1) covered on both sides with a layer of resin-impregnated fabric (2) and a thin wood veneer (5) on at least one side, has a layer of a rigid plastic closed-cell foam (3) and a second layer of resin-impregnated fabric (4) between the veneer and the first layer of resin-impregnated fabric, so that the foam layer lies between two layers of fabric. The composite panel, comprising a central honeycomb core (1) covered on both sides with a layer of resin-impregnated fabric (2) and a thin wood veneer (5) on at least one side, has a layer of a rigid plastic closed-cell foam (3) and a second layer of resin-impregnated fabric (4) between the veneer and the first layer of resin-impregnated fabric, so that the foam layer lies between two layers of fabric. The different layers of the panel are assembled and joined together by applying heat (up to about 135 degrees C) and pressure (1 - 3 bars) in a single operation lasting about one hour.

Description

PANNEAU COMPOSITE POUR MOBILIER AVIONCOMPOSITE PANEL FOR AIRCRAFT FURNITURE

La présente invention se rapporte à des panneaux composites aux panneaux composites objets du brevet français FR 2.563.153 délivré au nom du Demandeur.  The present invention relates to composite panels composite panels subject of French patent FR 2,563,153 issued in the name of the Applicant.

FR 2.563.153 concerne un panneau composite comprenant une âme centrale formée d'un panneau du type nid d'abeilles revêtu sur ses deux faces d'au moins une couche de tissu pré-imprégné de résine appropriée, ledit panneau étant caractérisé en ce qu'au moins l'une des faces dudit panneau ainsi revêtu est recouverte d'un placage de bois mince mise en place par simple pression à chaud, l'ensemble âme centrale + tissus + placages étant assemblé et solidarisé au cours d'une seule et même opération.  FR 2,563,153 relates to a composite panel comprising a central core formed of a honeycomb panel coated on both sides with at least one layer of fabric pre-impregnated with suitable resin, said panel being characterized in that at least one of the faces of said panel thus coated is covered with a thin wood veneer put in place by simple hot pressure, the whole central core + fabrics + veneers being assembled and secured during a single and same operation.

Un tel matériau composite est remarquablement résistant eu égard à son faible poids et répond aux diverses normes notamment celle de feu et fumées utilisées en aviation. En outre, il permet, avec un coût de revient nettement plus faible, de réaliser des panneaux pour la constructions de parois, portes, éléments de mobilier pour avions, particulièrement décoratifs.  Such a composite material is remarkably resistant in view of its low weight and meets the various standards including that of fire and fumes used in aviation. In addition, it allows, with a significantly lower cost, to produce panels for the construction of walls, doors, aircraft furniture items, particularly decorative.

Cependant, les panneaux composites ainsi réalisés peuvent présenter parfois des défauts d'aspect constitués par l'apparition sur la face visible des placages de bois de marques, appelées fantômes, trahissant la présence derrière les placages de la structure en nid d'abeilles et qui se manifeste au droit des pieds des parois des alvéoles du nid d'abeilles.  However, the composite panels thus produced may sometimes have defects in appearance constituted by the appearance on the visible face of wood veneer marks, called ghosts, betraying the presence behind the veneers of the honeycomb structure and which occurs at the foot of honeycomb cell walls.

La présente invention vise précisément à palier ces inconvénients.  The present invention aims precisely to overcome these disadvantages.

A cet effet, l'invention a pour objet un panneau composite notamment destiné au mobilier avion, comprenant une âme centrale formée d'un panneau du type nid d'abeilles revêtu sur ses deux faces d'un moins une couche de tissu pré- imprégné de résine appropriée, au moins l'une des faces dudit panneau étant recouverte d'un placage de bois mince, caractérisé en ce qu'entre ledit placage de bois mince et ladite couche de tissu pré-imprégné sont interposées une couche d'une mousse de matière plastique rigide et une seconde couche de tissu pré- imprégné de résine, la couche de mousse étant interposée entre les deux couches de tissu, l'ensemble étant assemblé et solidarisé sous pression et à chaud au cours d'une seule et même opération.  For this purpose, the subject of the invention is a composite panel particularly intended for airplane furniture, comprising a central core formed of a honeycomb panel coated on both sides with at least one layer of pre-impregnated fabric. of suitable resin, at least one of the faces of said panel being covered with a thin wood veneer, characterized in that between said thin wood veneer and said layer of pre-impregnated fabric are interposed a layer of a foam a rigid plastic material and a second layer of fabric pre-impregnated with resin, the layer of foam being interposed between the two layers of fabric, the assembly being assembled and secured under pressure and hot during a single operation .

La présence de la couche de mousse rigide, d'une épaisseur de quelques millimètres, évite ainsi l'apparition du phénomène des fantômes sur la face visible du placage de bois dont est muni, sur l'une de ses faces ou sur les deux, le panneau composite ainsi obtenu.  The presence of the rigid foam layer, a few millimeters thick, thus prevents the appearance of the phenomenon of ghosts on the visible face of the wood veneer which is provided on one or both sides thereof. the composite panel thus obtained.

D'autres caractéristiques et avantages ressortiront de la description qui va suivre d'un mode de réalisation du panneau selon l'invention, description donnée à titre d'exemple uniquement et en regard du dessin annexé sur lequel la figure unique représente une coupe schématique d'un panneau composite conforme à l'invention.  Other features and advantages will emerge from the following description of an embodiment of the panel according to the invention, a description given by way of example only and with reference to the accompanying drawing in which the single figure shows a diagrammatic section of FIG. a composite panel according to the invention.

Sur cette figure unique on a représenté schématiquement en 1 un panneau du type nid d'abeilles, par exemple en aluminium ou dans le matériau connu sous la marque déposée NOMEX. L'épaisseur de ce panneau 1 est variable et de l'ordre de quelques millimètres à quelques dizaines de millimètres.  In this single figure is schematically shown in 1 a panel of the honeycomb type, for example aluminum or in the material known under the trademark NOMEX. The thickness of this panel 1 is variable and of the order of a few millimeters to a few tens of millimeters.

Chaque face du panneau 1 est revêtue d'une ou plusieurs couches de tissus 2 pré-imprégnés d'une résine appropriée. Il s'agit par exemple de tissus de verre ou de carbone ou d'hybride pré-imprégnés de résine phénolique ou époxy.  Each face of the panel 1 is coated with one or more layers of fabric 2 pre-impregnated with a suitable resin. This is for example glass fabrics or carbon or hybrid pre-impregnated with phenolic resin or epoxy.

Les faces externes des couches de tissus 2 sont, conformément à l'invention, revêtues d'une couche de mousse 3 d'une matière plastique rigide appropriée de préférence à cellules fermées, d'une épaisseur de quelques millimètres, par exemple 3 millimètres.  The outer faces of the fabric layers 2 are, according to the invention, coated with a foam layer 3 of a rigid plastic material, preferably closed cell, of a thickness of a few millimeters, for example 3 millimeters.

La mousse 3 est par exemple une mousse rigide de PVC réticulée ayant une tenue en température de l'ordre de 140 C. La mousse disponible dans le commerce sous la dénomination AIREX et fabriquée par la Société suisse ALCAN convient particulièrement à la réalisation de panneaux selon l'invention.  The foam 3 is, for example, a crosslinked rigid PVC foam having a temperature resistance of the order of 140 ° C. The foam commercially available under the name AIREX and manufactured by the Swiss company ALCAN is particularly suitable for producing panels according to the invention.

Les couches de mousse 3 sont ensuite recouvertes d'une nouvelle couche 4 de tissu pré-impregné de résine, par exemple du même type que les premières couches 2.  The foam layers 3 are then covered with a new layer 4 of fabric pre-impregnated with resin, for example of the same type as the first layers 2.

Enfin, la face externe des couches 4 est revêtue d'un placage 5 de bois mince, d'épaisseur variable, par exemple de quelques dixièmes de millimètre. N'importe quelle essence de bois peut être utilisée.  Finally, the outer face of the layers 4 is coated with a veneer 5 of thin wood, of variable thickness, for example a few tenths of a millimeter. Any kind of wood can be used.

Le sandwich formé par les éléments 1 + 2 + 3 + 4 + 5 est assemblé et 5 solidarisé en une seule et même opération.  The sandwich formed by the elements 1 + 2 + 3 + 4 + 5 is assembled and secured in one and the same operation.

A cet effet, lesdits éléments sont superposés et mis sous presse sous une pression de l'ordre de 1 à 3 bars, pendant une durée de l'ordre d'une heure environ et sous une température pouvant atteindre environ 135 avant de redescendre aux alentours de 60 C.  For this purpose, said elements are superimposed and pressurized under a pressure of the order of 1 to 3 bars, for a duration of the order of one hour and under a temperature of up to about 135 before falling back to the surroundings 60 C.

Aucun apport de film de colle n'est nécessaire.  No supply of glue film is necessary.

Les conditions de l'opération (pression, temps, température) sont susceptibles de varier selon la nature des matériaux utilisés et les spécifications des fabricants, afin d'obtenir le meilleur accrochage nid d'abeilles tissus.  The conditions of the operation (pressure, time, temperature) are likely to vary according to the nature of the materials used and the specifications of the manufacturers, in order to obtain the best hanging honeycomb fabrics.

La présence de la couche de mousse 3 interposée entre le placage 5 et le nid d'abeilles 1 évite l'apparition sur la face visible du placage du fantôme de la structure alvéolaire constitué par des marques dessinant un réseau hexagonal en égard des pieds des cloisons des alvéoles du nid d'abeilles dont les axes sont perpendiculaires au plan du placage. Ces marques sont le résultat des variations de pression de l'air contenu et emprisonné dans les alvéoles. Le placage n'étant plus lié directement aux tranches des parois des alvéoles via la résine des tissus pré-imprégnés comme c'était le cas de l'assemblage selon FR 2.563.153, n'est plus bridé et sollicité par les variations de pression de l'air des alvéoles.  The presence of the foam layer 3 interposed between the veneer 5 and the honeycomb 1 avoids the appearance on the visible face of the phantom veneer of the honeycomb structure consisting of marks forming a hexagonal network with respect to the feet of the partitions cells of the honeycomb whose axes are perpendicular to the plane of the veneer. These marks are the result of variations in the pressure of the air contained and trapped in the cells. The veneer is no longer bonded directly to the slices of the walls of the cells via the resin of the pre-impregnated fabrics as was the case of the assembly according to FR 2.563.153, is no longer clamped and solicited by the pressure variations. from the air of the alveoli.

Il est à noter également que l'adjonction de la mousse 3 améliore également les essais au feu au niveau du dégagement de chaleur, l'acoustique en diminuant l'effet de résonance, ainsi que l'isolation thermique du panneau.  It should also be noted that the addition of the foam 3 also improves the fire tests at the level of the heat release, the acoustics by reducing the resonance effect, as well as the thermal insulation of the panel.

Par ailleurs, la mousse, par sa souplesse relative permet au vernis du panneau d'encaisser certains coups sans marquage.  In addition, the foam, by its relative flexibility allows the panel varnish to cash some shots without marking.

Le panneau selon l'invention ajoute ainsi aux propriétés et qualités du panneau de FR 2.563.153, la pérennité de l'aspect esthétique en améliorant de 30 surcroît les performances acoustique et thermique.  The panel according to the invention thus adds to the properties and qualities of the panel of FR 2.563.153, the durability of the aesthetic appearance by improving the acoustic and thermal performance.

Bien entendu, le panneau peut ne comporter qu'un placage 5 sur l'une des faces, l'autre ne comportant qu'une seule couche de tissu pré-imprégné 2.  Of course, the panel may have only one veneer 5 on one side, the other having only one layer of pre-impregnated fabric 2.

Claims (1)

4 REVENDICATIONS4 CLAIMS 1. Panneau composite notamment destiné au mobilier avion, comprenant une âme centrale formée d'un panneau du type nid d'abeilles revêtu sur ses deux faces d'un moins une couche de tissu pré-imprégné de résine appropriée, au moins l'une des faces dudit panneau étant recouverte d'un placage de bois mince, caractérisé en ce qu'entre ledit placage de bois mince (5) et ladite couche de tissu pré-imprégné (2) sont interposées une couche d'une mousse (3) de matière plastique rigide et une seconde couche (4) de tissu pré-imprégné de résine, la couche de mousse (3) étant interposée entre les deux couches de tissu (2,4), l'ensemble étant assemblé et solidarisé sous pression et à chaud au cours d'une seule et même opération.  1. Composite panel especially for aircraft furniture, comprising a central core formed of a honeycomb panel coated on both sides with at least one layer of fabric pre-impregnated with suitable resin, at least one faces of said panel being covered with a thin wood veneer, characterized in that between said thin wood veneer (5) and said pre-impregnated fabric layer (2) is interposed a layer of a foam (3) a rigid plastic material and a second layer (4) of fabric pre-impregnated with resin, the layer of foam (3) being interposed between the two layers of fabric (2, 4), the assembly being assembled and secured under pressure and hot during a single operation. 2. Panneau selon la revendication 1, caractérisé en ce que la mousse (3) est à cellules fermées.  2. Panel according to claim 1, characterized in that the foam (3) is closed cell. 3. Panneau selon la revendication 1 ou 2, caractérisé en ce que l'épaisseur de la couche de mousse (3) est de l'ordre de 3 millimètres.  3. Panel according to claim 1 or 2, characterized in that the thickness of the foam layer (3) is of the order of 3 millimeters. 4. Eléments de cloison, paroi, porte, mobiliers montés sur avion et intégrant des panneaux composites selon l'une des revendications 1 à 3.  4. Partitions wall, wall, door, furniture mounted on aircraft and incorporating composite panels according to one of claims 1 to 3.
FR0451332A 2004-06-25 2004-06-25 COMPOSITE PANEL FOR AIRCRAFT FURNITURE Expired - Lifetime FR2872085B1 (en)

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Cited By (10)

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WO2009013123A1 (en) * 2007-07-20 2009-01-29 Fritz Egger Gmbh & Co. Lightweight building panel
WO2010040004A1 (en) 2008-10-01 2010-04-08 The Boeing Company Composite truss panel having fluted core and sitffener made of foam and method for making the same
US7790274B2 (en) 2006-08-02 2010-09-07 High Impact Technology, Llc Layered panel structure including self-bonded thermoformable and non-thermoformable layer materials
CN102069611A (en) * 2010-10-15 2011-05-25 曾广胜 Package cushioning composite material
WO2011101546A1 (en) * 2010-02-19 2011-08-25 Metsäliitto Osuuskunta Composite panel and method for manufacturing same
FR2962362A1 (en) * 2010-07-12 2012-01-13 Alain Catherineau Composite panel for aircraft interior fitting e.g. partition element, has aluminum film interposed between thin log veneer and resin fabric layer and integrated on one of faces of thin log veneer by adhesive layer
US8236220B2 (en) 2006-08-16 2012-08-07 High Impact Technology, Llc Method of making an embedded-object and composite-material product
US8834667B2 (en) 2010-10-19 2014-09-16 The Boeing Company Method for joining sandwich truss core panels and composite structures produced therefrom
EP2744653B1 (en) 2011-08-19 2017-09-27 Metsäliitto Osuuskunta Insulated panel and method of manufacturing the same
EP3590714B1 (en) 2018-06-14 2022-02-09 Cath'Air Method for manufacturing a composite panel

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WO1993020300A1 (en) * 1992-03-30 1993-10-14 Ljubomir Gnjatovic Reinforced wall structure
WO2000030845A1 (en) * 1998-11-19 2000-06-02 G.O.R. Applicazioni Special S.P.A. Multilayer panel and use thereof as a formwork
FR2790709A1 (en) * 1999-03-08 2000-09-15 Lamberet Const Isothermes THERMO-PLASTIC COMPOSITE PANEL, FOR EXAMPLE FOR THERMO-INSULATING A VOLUME OR STRUCTURE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020300A1 (en) * 1992-03-30 1993-10-14 Ljubomir Gnjatovic Reinforced wall structure
WO2000030845A1 (en) * 1998-11-19 2000-06-02 G.O.R. Applicazioni Special S.P.A. Multilayer panel and use thereof as a formwork
FR2790709A1 (en) * 1999-03-08 2000-09-15 Lamberet Const Isothermes THERMO-PLASTIC COMPOSITE PANEL, FOR EXAMPLE FOR THERMO-INSULATING A VOLUME OR STRUCTURE

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7790274B2 (en) 2006-08-02 2010-09-07 High Impact Technology, Llc Layered panel structure including self-bonded thermoformable and non-thermoformable layer materials
US7943232B2 (en) 2006-08-02 2011-05-17 High Impact Technology, Llc Layered panel structure including self-bonded layers of thermoformable and non-thermoformable materials
US8236220B2 (en) 2006-08-16 2012-08-07 High Impact Technology, Llc Method of making an embedded-object and composite-material product
WO2009013123A1 (en) * 2007-07-20 2009-01-29 Fritz Egger Gmbh & Co. Lightweight building panel
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