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WO2013053475A1 - Élément sandwich dont l'âme présente des propriétés différentes selon les endroits, et procédé de fabrication dudit élément - Google Patents

Élément sandwich dont l'âme présente des propriétés différentes selon les endroits, et procédé de fabrication dudit élément Download PDF

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Publication number
WO2013053475A1
WO2013053475A1 PCT/EP2012/004258 EP2012004258W WO2013053475A1 WO 2013053475 A1 WO2013053475 A1 WO 2013053475A1 EP 2012004258 W EP2012004258 W EP 2012004258W WO 2013053475 A1 WO2013053475 A1 WO 2013053475A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
core material
zones
different
cover layers
Prior art date
Application number
PCT/EP2012/004258
Other languages
German (de)
English (en)
Inventor
Heinz G. Pfankuche
Dirk H. Urbanek
Original Assignee
Ingenieurbüro Urbanek, Pfankuche Und Partner
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 Ingenieurbüro Urbanek, Pfankuche Und Partner filed Critical Ingenieurbüro Urbanek, Pfankuche Und Partner
Publication of WO2013053475A1 publication Critical patent/WO2013053475A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered 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
    • B32B5/02—Layered 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 structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered 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
    • B32B5/14—Layered 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 a layer differing constitutionally or physically in different parts, e.g. denser near its faces
    • B32B5/142—Variation across the area of the layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered 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
    • B32B5/18—Layered 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/243—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 one at least of the material being insulating
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B32B2307/722—Non-uniform density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof

Definitions

  • the invention relates to a composite panel according to the preamble of claim 1, which is constructed as a sandwich element.
  • Such composite panels are used in building structures application, for example, to create a building exterior wall.
  • a support structure of steel beams can be clad with such composite panels.
  • the two outer cover layers may for example consist of plastic.
  • metallic cover layers are frequently used, with the two cover layers being removed as so-called endless material from one coil in each case for the production of the cover layers, and
  • Core material is introduced between these two spaced-apart cover layers and bonded to the two outer layers.
  • the design of the core is in fact essential for the mechanical properties of the composite panel, for example, for the thermal insulation effect, but in particular for the mechanical strength of the composite panel.
  • the core material is configured, for example, in the form of a foam, in particular a hard foam, or in the form of a layer of mineral fibers which are crosslinked with one another, ie are glued together in their contact points.
  • foams it is common in practice to use foams based on polyurethane, polystyrene or polyisocyanurate.
  • the cavities can in this case be filled with a propellant, such as pentane.
  • the invention has for its object to improve a generic sandwich element to the effect that this can be produced as inexpensively as possible while maintaining the required mechanical strength. Furthermore, the invention has for its object to provide a manufacturing method, which allows the production of such sandwich elements.
  • the invention proposes, in a surprising manner, not to design the core as homogeneously as possible, but deliberately different. It is, however, provided that these zones of different configuration of the core are not randomly distributed, but that these zones are at predetermined locations of the composite plate, so distributed over the surface of the composite panel deliberately zones of different material properties of the core are created, so that accordingly the entire composite panel has zones of different mechanical load capacity, namely a mechanical load capacity with regard to a thrust, compression or bending load capacity.
  • the core has zones with different densities.
  • the packing density of the fibers can be increased, so that in this way the specific gravity of the core, so the weight in a given volume of space of z. B. 1 cm 3 or 11 is higher than in adjacent areas of the core.
  • the volume weight can be adjusted to be greater, because the foam has smaller pores or, with unchanged pore size, fewer pores, so that ultimately more plastic material per unit of space is present.
  • areas of the composite panel are provided by the zones with higher densities, which are more resilient, for example, in terms of their compressive strength, with regard to the absorption of shear forces or regarding their bending load capacity.
  • Screw remains on a support structure.
  • the composite panel Due to the different zones of the composite panel, for example through the zones with different densities, the composite panel can be defined with zones of different load capacity. At the higher loaded areas, therefore, the required load capacity of the composite panel can be ensured. However, compared with a conventional composite panel having a core as homogeneous as possible, in the other areas of the panel where the load capacity is lower, material can be saved, which on the one hand allows lower consumption of raw materials and thus a particularly economical production of the composite panel with unchanged high load capacity.
  • the thermal insulation compared to conventionally constructed composite panels can be improved: Since the structure of the core in the conventional composite panels constructed with a homogeneous as possible core, To ensure the required strength of the composite panel is oversized in all other areas that are not so heavily loaded, the core in terms of its mechanical properties and in terms of the resilience of the composite panel.
  • the core instead of a different density per unit area, has zones with different material compositions.
  • it may also be provided to apply both different spatial weights and different material compositions of the core to create the different zones.
  • the two outer cover layers are each fed as an endless belt and are withdrawn from a so-called coil, so a roll of material.
  • metallic cover layers such as steel sheets.
  • the two drawn from a coil sheets are moved at a certain transport speed in a particular direction, namely in the so-called production direction.
  • the two sheets are kept at a distance to each other.
  • the core material is introduced and bonded to the two cover layers.
  • the bonding takes place, for example, without the addition of additional adhesive by the adhesive material properties of the plastic itself.
  • the surfaces of the cover layers are pretreated with a so-called primer, which is a bonding layer between the respective cover layer and the core material.
  • primer is a bonding layer between the respective cover layer and the core material.
  • it can be provided to heat the cover layers for improved bonding. While the two cover layers are transported in the direction of production, the amount and / or the composition of the core material is changed, so that the zones result in different load capacity in the finished composite panel.
  • the cover layers can be transported at the same speed and the quantity or the composition of the core material can be changed.
  • it may be provided to change the transport speed of the cover layers, in order to increase or decrease in this way, for example bring less core material per unit length of the outer layers between the outer layers and thereby influence, for example, the density of the core material.
  • the two influencing possibilities can be combined, ie both the composition of the
  • Core material and the feed rate of the outer layers are affected.
  • the amount of core material which is introduced per unit of time between the two cover layers is changed.
  • the filling of the gap between the two cover layers with core material is changed with regard to their filling quantity or filling density.
  • the core material exits from a plurality of nozzles, which are distributed over the width of the cover layers. If the same amount of core material always exits from all of the nozzles and this quantity is changed, for example reduced or increased, for a certain period of time, zones are created in the composite panel which extend over the entire width of the composite panel.
  • the nozzles are controlled differently, so the amount emerging from the nozzles is set differently, so in the longitudinal direction of the composite plate extending strips can be created, which create zones of different load capacity of the composite panel.
  • this nozzle setting always remains the same, these different zones each extend over the entire length of the composite plate.
  • these different nozzles each output different amounts of core material only over a certain period of time, strips of different lengths or approximately punctiform zones can be created within the core of the composite board which have different material properties. so that the load-bearing capacity of the composite panel can be adapted very precisely to the expected requirements and the composite panel can be optimally produced economically.
  • a liquid plastic material is used as the core material, to which a foaming agent and / or a hardener or catalyst is added.
  • a foaming agent and / or a hardener or catalyst is added.
  • the property of the core such as its strength
  • the strength of the core can advantageously be set differently in zones by the respective fiber density, for example by introducing more or less large amounts of fiber between the two cover layers during the production of the composite panel.
  • the composite panel For typical applications of the composite panel it may be envisaged to provide standardized composite panels in which the different zones are provided in a typical arrangement within the composite panel.
  • the proposed method can be applied particularly advantageously and in these cases, a particularly advantageous because particularly economically designed composite panel can be created, namely for each order a certain amount of composite panels is ordered and clarity on the part of the client, as the composite panels to be mounted and which expected loads they will be exposed to.
  • the corresponding data can be taken into account in the production of the composite panels and the zones are created according to their required load capacity exactly in the composite panels, where they are needed for this specific application.
  • 1 shows a longitudinal section through a composite panel and calculated for this composite panel loads.
  • Fig. 2 is a schematic and perspective view of an assembly for the production of composite panels and the
  • Fig. 1 denotes a total of a sandwich element, which is also referred to as a composite plate 1.
  • the composite panel 1 has two metallic cover layers 2 and a core 3, which is glued to the two cover layers 2.
  • Composite panel 1 is provided as the outer wall of a building structure and it is held on three beams 4, for example on horizontally extending steel girders.
  • wind loads act on the composite panel 1 from the outside as pressure forces distributed over the entire area of the composite panel 1.
  • lateral forces result according to the straight line nigen line course, this transverse force profile is marked in each case with Q.
  • the composite plate 1 is subjected to bending, wherein the corresponding Biegemomenten- course is drawn according to the curved curves, which are marked B.
  • a first zone a has a high resistance to shear failure.
  • a second zone b has a high resistance to buckling failure.
  • a third zone c has a high resistance to shear failure and kink failure.
  • two zones a and two zones b and in the middle region of the composite plate 1, a zone c are provided.
  • the non-hatched areas of the core 3 shown therebetween represent a fourth type of zone in which the composite panel 1 must have a comparatively lower mechanical load capacity.
  • Fig. 2 the two outer layers 2 are shown one above the other at a distance. As can be seen from FIG. 2, these two cover layers 2 are drawn off from a coil 5 as quasi endless webs of material. Between the two cover layers 2 protrudes a left spray bar 6, on which five spray nozzles 7 are provided. A supply line 8 supplies the spray bar 6 and thus the spray nozzles 7 with material, for example with a liquid plastic, which is introduced between the two cover layers 2 and foams there.
  • three storage tanks A, B and C are provided, one of which contains, for example, the liquid plastic, in a second, a hardener is provided and in the third container, for example, a Foaming agent is provided.
  • valves 9 the amount for each of these containers A, B or C can be set individually, so that the mixing ratio between these three components can be arbitrarily set and, for example, a valve can be completely closed, so that only liquid plastic and one of the other two components is used.
  • the valves 9 may also be referred to as mixing valves because they affect the mixing ratio between the three components mentioned.
  • a metering valve 10 is arranged in the supply line 8, which influences the quantity of the core material reaching the spray bar 6.
  • the two cover layers 2 are pulled off the coils 5 in a direction of production indicated by an arrow.
  • the volume weight of the core can be influenced by controlling the amount of core material emerging from the spray nozzles 7 by means of the metering valve 10 so that, over the entire width of the cover layers 2 and thus of the later composite panel 1 away, in the longitudinal direction of the composite plate 1 differently configured zones of the core can be created.
  • each spray nozzle 7 is assigned its own supply line 8 and in each of these supply lines 8 a separate metering valve 10 is provided.
  • this arrangement could also be on the spray bar
  • each individual spray nozzle 7 directly to each individual spray nozzle 7, such a metering valve 10 may be provided, so that over the width of the cover layers 2 distributed different zones can be formed in the core.
  • each of the several different supply lines 8 it is possible for each of the several different supply lines 8 to be supplied with material of different composition, so that not only an influence on the amount of material but also on the composition of the material can be distributed over the width of the composite plate 1 is.
  • Fig. 3 shows a purely schematic view of a composite plate 1, wherein the uppermost cover layer is removed, so that the view of the core 3 is free. It can be seen that over the entire width of the composite plate 1, the core is always the same design. In the longitudinal direction of the composite panel 1, however, different zones arise, with reference to FIG. 1, the zones of higher load capacity in Fig. 3 are purely exemplary b, while outside of these higher loadable zones b, the core 3 is less resilient and, for example, as a foam Material is designed with a larger pore content.
  • An embodiment of the composite panel 1 according to FIG. 3 can be achieved, for example, with the production arrangement which has the spray bar 6 shown on the left in FIG. 2.
  • Fig. 4 shows in a view similar to Fig. 3 is a composite plate 1, in which two zones of higher load capacity over the entire length of the composite plate 1 away and the composite plate 1 seen across their width has different zones. Again, the zones of higher load capacity are marked with b.
  • Such a configuration of the composite panel 1 can be achieved with a production device having the spray bar 6 shown on the right in Fig. 2, wherein the emerging from the spray nozzles 7 amounts and compositions of the core material are always set consistently.
  • a composite plate 1 is shown in a view similar to Figs. 3 and 4, in which the zones b higher load capacity are designed almost punctually.
  • Such a Collar plate 1 can be produced with a production device which has the spray bar 6 shown on the right in FIG. 2, in which case the different spray nozzles 7 are charged at different times for a certain period of time with a different amount of material or a different material composition of the core material that their load capacity can be adjusted very specifically to the intended stress of the composite panel.

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

Abstract

L'invention concerne un panneau composite (1) réalisé sous la forme d'un élément sandwich, comprenant deux couches de recouvrement extérieures (2) et une âme (3) agencée entre les deux couches de recouvrement (2). L'âme (2) contient un matériau alvéolaire ou des fibres minérales et comporte des vides. Selon l'invention, l'âme (3) présente sur la longueur et/ou la largeur du panneau composite (1) des propriétés différentes selon les endroits, de sorte que le panneau composite (1) peut supporter des charges mécaniques différentes selon les endroits en termes de contrainte de poussée, de pression ou de flexion. L'invention concerne également un procédé de production d'un tel élément sandwich, selon lequel les deux couches de recouvrement extérieures (2) sont chacune extraites d'un rouleau de matériau chacune sous la forme d'une bande continue et sont déplacées parallèlement et à distance l'une de l'autre dans une direction de production, et le matériau de l'âme (3) est introduit entre les deux couches de recouvrement (2) en mouvement et est collé aux deux couches de recouvrement (2), la quantité et/ou la composition du matériau de l'âme (3) variant de telle manière que le matériau de l'âme (3) est configuré pour supporter dans des zones prédéterminées des charges mécaniques différentes en direction longitudinale ou transversale en termes de contrainte de poussée, de pression ou de flexion.
PCT/EP2012/004258 2011-10-11 2012-10-11 Élément sandwich dont l'âme présente des propriétés différentes selon les endroits, et procédé de fabrication dudit élément WO2013053475A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011116479 2011-10-11
DE102011116479.4 2011-10-11

Publications (1)

Publication Number Publication Date
WO2013053475A1 true WO2013053475A1 (fr) 2013-04-18

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PCT/EP2012/004258 WO2013053475A1 (fr) 2011-10-11 2012-10-11 Élément sandwich dont l'âme présente des propriétés différentes selon les endroits, et procédé de fabrication dudit élément

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013022223A1 (de) * 2013-12-20 2015-06-25 Raziol Zibulla & Sohn Gmbh Vorrichtung und Verfahren zum Aufbringen von flüssigem bis pastösem Befettungsmittel auf eine Werkstückoberfläche
EP2937123A1 (fr) 2014-04-24 2015-10-28 Parrot Platine universelle de montage pour drone à voilure tournante

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657036A (en) * 1969-10-02 1972-04-18 Nat Gypsum Co Method for production of rigid polyurethane articles
US3872199A (en) * 1971-06-16 1975-03-18 Champion Int Corp Method of manufacturing a foamed urethane structural product having high and low density portions
EP0609721A2 (fr) * 1993-02-05 1994-08-10 Glaswerk Schuller GmbH Couche de revêtement pour une structure en sandwich à noyau de mousse et son procédé de fabrication
WO1998048962A2 (fr) * 1997-04-25 1998-11-05 Brunswick Corporation Structure composite multicouche thermoplastique
US6117375A (en) * 1996-09-23 2000-09-12 Bridgestone/Firestone, Inc. Roofing members without auxiliary facers and related methods
US20070256379A1 (en) * 2006-05-08 2007-11-08 Edwards Christopher M Composite panels
DE102008030944A1 (de) * 2008-07-02 2010-01-07 Knauf Insulation Gmbh Tragendes Bau-Konstruktionselement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657036A (en) * 1969-10-02 1972-04-18 Nat Gypsum Co Method for production of rigid polyurethane articles
US3872199A (en) * 1971-06-16 1975-03-18 Champion Int Corp Method of manufacturing a foamed urethane structural product having high and low density portions
EP0609721A2 (fr) * 1993-02-05 1994-08-10 Glaswerk Schuller GmbH Couche de revêtement pour une structure en sandwich à noyau de mousse et son procédé de fabrication
US6117375A (en) * 1996-09-23 2000-09-12 Bridgestone/Firestone, Inc. Roofing members without auxiliary facers and related methods
WO1998048962A2 (fr) * 1997-04-25 1998-11-05 Brunswick Corporation Structure composite multicouche thermoplastique
US20070256379A1 (en) * 2006-05-08 2007-11-08 Edwards Christopher M Composite panels
DE102008030944A1 (de) * 2008-07-02 2010-01-07 Knauf Insulation Gmbh Tragendes Bau-Konstruktionselement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013022223A1 (de) * 2013-12-20 2015-06-25 Raziol Zibulla & Sohn Gmbh Vorrichtung und Verfahren zum Aufbringen von flüssigem bis pastösem Befettungsmittel auf eine Werkstückoberfläche
EP2937123A1 (fr) 2014-04-24 2015-10-28 Parrot Platine universelle de montage pour drone à voilure tournante

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