EP4211023A1 - Élément isolant - Google Patents

Élément isolant

Info

Publication number
EP4211023A1
EP4211023A1 EP21773542.2A EP21773542A EP4211023A1 EP 4211023 A1 EP4211023 A1 EP 4211023A1 EP 21773542 A EP21773542 A EP 21773542A EP 4211023 A1 EP4211023 A1 EP 4211023A1
Authority
EP
European Patent Office
Prior art keywords
insulating
hood
elements
insulating element
carrier
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.)
Pending
Application number
EP21773542.2A
Other languages
German (de)
English (en)
Inventor
Henrik Lindgren
Dimitri MARCQ
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.)
Sika Technology AG
Original Assignee
Sika Technology AG
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 Sika Technology AG filed Critical Sika Technology AG
Publication of EP4211023A1 publication Critical patent/EP4211023A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
    • B62D29/002—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material a foamable synthetic material or metal being added in situ

Definitions

  • the invention relates to an insulating element for insulating a structural element in a motor vehicle. Furthermore, the invention relates to a system with several such insulating elements, as well as a method for attaching such insulating elements to structural elements.
  • components such as bodies and/or frames of means of transport and locomotion, in particular of vehicles on water or land or of aircraft, have structures with cavities in order to enable lightweight constructions.
  • these voids cause various problems.
  • it must be sealed to prevent the ingress of moisture and dirt, which can lead to corrosion of the components.
  • It is often also desirable to significantly strengthen the cavities and thus the structural element, while maintaining the low weight.
  • It is also often necessary to stabilize the cavities, and hence the components, to reduce noise that would otherwise be transmitted along or through the cavity.
  • Many of these cavities are irregular in shape or narrow in size, making them difficult to properly seal, reinforce and cushion.
  • sealing elements are therefore used to seal cavities and/or acoustically seal them off, or reinforcing elements (English: reinforcer) are used to reinforce cavities.
  • a body of an automobile is shown schematically.
  • the body 10 has various structures with cavities, such as pillars 14 and supports or struts 12 .
  • Such structural elements 12, 14 with cavities are usually sealed or reinforced with insulating elements 16.
  • a disadvantage of the previously known sealing and/or reinforcing elements is that such parts often cannot be packed efficiently. Furthermore, when transporting such parts, there is always confusion and damage to individual parts.
  • the insulating element should in particular be able to be packaged and transported more economically.
  • an insulating element for insulating a structural element in a motor vehicle comprising: a carrier; and an expandable material disposed on the backing; wherein the carrier has at least one hood and is designed in such a way that when several identical insulating elements are stacked, hoods of adjacent insulating elements engage in one another.
  • this solution has the advantage that it provides an insulating element which is designed to be stackable.
  • insulating elements can be stacked on top of one another for transport and can be packed and transported in the stacked state.
  • this brings savings in transport costs, because the insulating elements can be packed in a more space-saving manner, so that more insulating elements can be transported in a certain volume than was the case with conventional insulating elements.
  • stacking such insulating elements offers the advantage that mix-ups of different insulating elements can be recognized more easily. If, for example, a first insulating element is packed in a container with several second insulating elements, this is immediately noticeable because the first insulating element usually does not come with the second Insulation elements can be stacked. This can greatly reduce confusion.
  • the stackable insulation element proposed here also offers the advantage that the individual insulation elements can be damaged less easily as a result of the stacked arrangement for transport and storage. If, as before, the individual insulating elements are transported loosely in a container, there is a great deal of contact between the insulating elements, and damage can occur from time to time. However, if the insulating elements are transported in stacks, the number of mechanical contacts between the insulating elements is greatly reduced.
  • the insulation elements can be designed in such a way that the intended contact points are robust or less susceptible to damage, and/or that areas of the insulation elements that are easier to damage are arranged in protected areas which, for example, are covered by the adjacent insulation elements when stacked.
  • the stackable insulation element proposed here offers the advantage that automated attachment of the insulation elements to structural elements in motor vehicles is facilitated. For example, entire stacks of such insulating elements can be loaded into a robot, which then removes the individual insulating elements from this stack and attaches them to the structural elements accordingly. In the case of loosely arranged insulating elements in a container, such an automated attachment of the insulating elements is much more difficult to accomplish.
  • hoods offer the advantage that, on the one hand, stackability of the insulation elements is improved by hoods of adjacent insulation elements interlocking when stacked. As a result, the stacked insulation elements are mechanically secured against lateral displacement, and In addition, a stacking height is kept as small as possible by the insulating elements interlocking to save space.
  • hoods also have the advantage that they make manipulation by an application robot easier and more efficient.
  • a robot's gripper can grip and manipulate the insulating elements directly on a hood.
  • several grippers can be used accordingly.
  • insulating element includes elements for sealing off and/or insulating and/or closing and/or reinforcing and/or insulating a structural element. These different properties of such an insulating element can occur individually or in combination with one another.
  • hood includes in particular formations or bulges on the carrier of the insulating element with a hollow interior and an open side.
  • a hood can have, for example, a hemispherical, dome-like, cube-like, cylinder-like, cone-like, or an irregular shape.
  • top and bottom mean the two main surfaces or the two largest side surfaces of the insulating element. Since the insulating elements are designed to close a cross-section in a structural element, this means that the upper side and the underside are each essentially in one plane of a cross-section to be insulated in an application state. The upper side or the lower side can also have a step-like character, which means that the upper side or the lower side does not have to be completely flat.
  • parallel in relation to the arrangement of insulating elements in a stack of several identical insulating elements means that the same surfaces and/or edges of the identical insulating elements are arranged essentially parallel to one another.
  • the insulating element has exactly three contact points on the upper side and on the underside, which rest on one another when adjacent insulating elements are stacked.
  • the insulating element has exactly four or at least four such contact points on the upper side and on the lower side.
  • the insulating element has exactly five or at least five such contact points on the upper side and on the lower side.
  • At least one contact point on the upper side and one contact point assigned to it on the underside are designed in such a way that adjacent insulation elements are secured against horizontal displacement when stacked in the vertical direction.
  • At least one contact point on the upper side and one contact point assigned to it on the underside are designed in such a way that a mechanical locking occurs between the corresponding contact points when stacked.
  • the hood forms at least one of these contact points.
  • At least one contact point is in a region of a fixation element.
  • area of a fixation element is understood in the context of this invention, the fixation element itself, a base of the fixation element, and the expandable material at the base of the fixation element, which is required to dam the opening in the structural element in which the fixation element is inserted.
  • the fixing element is designed as a clip.
  • a height of the fixing element in a stacking direction is less than 8 mm, preferably less than 7 mm, particularly preferably less than 6 mm.
  • a height at the base of the fixation element in the stacking direction which includes both a base of the fixation element and the expandable material at the base of the fixation element, which is required to fill the opening in the structural element in which the fixation element is inserted, is to dam, at most 130% or at most 120% or at most 110% of a height of the fixing element in the stacking direction.
  • At least one contact point is designed as a spacer element, with the spacer element serving to support and/or position the insulating element on the structural element when the insulating element is in a state of use in the structural element.
  • the spacer element itself is designed to be stackable, with two spacer elements stacked one inside the other having a total height in the stacking direction of at most 170% or at most 160% or at most 150% or at most 140% or at most 130% of the height of an individual spacer element.
  • steps of the carrier form an angle to the stacking direction of at least 35° or at least 40° or at least 45° or at least 50° or at least 55°.
  • a step of the carrier and at least one hood are designed in such a way that the hood together with the step form a bearing surface which is parallel to a plane of the top or bottom of the carrier.
  • the insulating element includes a step and two hoods, which together form such a bearing surface.
  • such insulation elements can be placed directly on a flat surface and stacked one on top of the other, with a stacking direction being oriented perpendicularly to this flat surface.
  • the insulating element has three hoods which together form a bearing surface which is parallel to a plane of the top or bottom of the carrier. This in turn allows insulating elements to be stacked directly on flat surfaces.
  • the insulating element has two hoods which together form a bearing surface which is parallel to a plane of the top or bottom of the carrier.
  • the insulating element has a hood, with the hood roof forming a bearing surface which is parallel to a plane of the top or bottom of the carrier.
  • all or individual contact points are formed through the carrier.
  • individual contact points are formed through the expandable material.
  • At least one contact point is formed by the carrier and at least one contact point is formed by the expandable material.
  • the carrier can generally be manufactured with smaller tolerances than the expandable material, it can be advantageous to form the contact points as far as possible through the carrier.
  • the insulating element has at least one securing element, which is designed in such a way that, when insulating elements are stacked on top of one another, an insulating element is secured by the securing element of an adjacent insulating element against displacement transversely to the stacking direction and/or against rotation of the insulating element about the stacking direction.
  • the security element is designed in such a way that when the insulation elements are stacked on top of one another, the security elements of two adjacent insulation elements overlap in the stacking direction.
  • the security elements overlap in the stacking direction by at least 3 mm or by at least 5 mm or by at least 7 mm.
  • the security element has at least one guide surface, which is designed such that when stacked, the guide surface guides an insulating element to be stacked, so that the newly stacked insulating element is arranged essentially congruently in the stacking direction on the insulating element.
  • At least one spacer element is designed as a securing element.
  • the spacer element is essentially Y-shaped.
  • individual surfaces of the legs of the Y-shaped spacer element can be designed as a guide surface.
  • the spacer element is essentially U-shaped or V-shaped. Again, individual surfaces of the legs of the U-shaped or V-shaped spacer element can be designed as a guide surface.
  • At least one step is designed as a safety element.
  • At least one area of a fixing element is designed as a securing element.
  • a base of the fixing element is designed as a securing element. This base can be essentially U-shaped, for example. Again, individual surfaces of the legs of the U-shaped base of the fixing element can be designed as a guide surface.
  • At least one hood is designed as a securing element.
  • all or individual security elements are formed by the carrier.
  • individual securing elements are formed through the expandable material.
  • At least one securing element is formed by the carrier and at least one securing element is formed by the expandable material.
  • the carrier can generally be manufactured with smaller tolerances than the expandable material, it can be advantageous to form the securing elements as far as possible through the carrier.
  • the insulating element has an upper side and a lower side which, in a use state, are essentially aligned in a plane of a cross-section of the structural element to be insulated.
  • an open side of the hood and/or a roof of the hood is aligned essentially parallel to the top or bottom of the insulating element.
  • a side wall of the hood projects beyond only the underside in a stacking direction.
  • a side wall of the hood protrudes only from the top in a stacking direction.
  • a side wall of the hood protrudes beyond both the bottom and the top in a stacking direction.
  • a cross section of the hood is substantially trapezoidal.
  • a cross-section of the hood is generally arcuate, dome-shaped, semi-circular, rectangular, triangular, or irregularly shaped.
  • the hood has a substantially circular, elliptical, or oval footprint.
  • the carrier has at least two hoods or at least three hoods.
  • two hoods have a different floor plan.
  • the hood is designed in such a way that when several identical insulating elements are stacked, hoods of adjacent insulating elements rest on one another.
  • the hood has at least one stopper, which defines a support location when stacked.
  • the stopper is arranged on the side wall of the hood.
  • the stopper can be arranged on an inside of the side wall or on an outside of the side wall.
  • a maximum hood height in the stacking direction is between 5 mm and 40 mm, preferably between 7 mm and 35 mm, preferably between 7 mm and 30 mm, preferably between 10 mm and 30 mm.
  • hoods can be used, with a maximum hood height in the stacking direction being between 10 mm and 80 mm, preferably between 20 and 70 mm.
  • a maximum hood width on the open side of the hood and measured perpendicularly to the stacking direction is between 5 mm and 40 mm, preferably between 5 mm and 30 mm, preferably between 5 mm and 25 mm, preferably between 5 mm and 20 mm.
  • a maximum hood width on the hood roof and measured perpendicularly to the stacking direction is between 3 mm and 35 mm, preferably between 3 mm and 25 mm, preferably between 3 mm and 20 mm, preferably between 3 mm and 15 mm.
  • the maximum hood width on the hood roof and measured perpendicularly to the stacking direction is at most 95%, preferably at most 90%, preferably at most 85%, preferably at most 80%, preferably at most 75%, preferably at most 70%, preferably at most 65%, preferably at most 60%, preferably at most 55%, preferably at most 50% of the maximum hood width on the open side of the hoods, measured perpendicular to the stacking direction.
  • the stacking height of an insulating element is at most 80%, preferably at most 70%, preferably at most 60%, preferably at most 50% of the hood height.
  • the expandable material may or may not have reinforcing properties.
  • the expandable material is expanded thermally, by moisture, or by electromagnetic radiation.
  • Such an expandable material typically includes a chemical or a physical blowing agent.
  • Chemical blowing agents are organic or inorganic compounds which decompose under the influence of temperature, humidity or electromagnetic radiation, with at least one of the decomposition products being a gas.
  • Physical blowing agents which can be used are, for example, compounds which change to the gaseous state of aggregation when the temperature is increased. As a result, both chemical and physical blowing agents are able to create foam structures in polymers.
  • the expandable material is preferably thermally foamed using chemical blowing agents.
  • suitable chemical blowing agents are azodicarbonamides, sulfohydrazides, bicarbonates or carbonates.
  • Suitable blowing agents are also commercially available, for example, under the trade name Expancel® from Akzo Nobel, Netherlands, or under the trade name Celogen® from Chemtura Corp., USA.
  • the heat required for foaming can be introduced by external or by internal heat sources, such as an exothermic chemical reaction.
  • the foamable material is preferably foamable at a temperature of ⁇ 250°C, in particular from 100°C to 250°C, preferably from 120°C to 240°C, preferably from 130°C to 230°C.
  • Suitable expandable materials are, for example, one-component epoxy resin systems which do not flow at room temperature, which in particular have increased impact strength and contain thixotropic agents such as aerosils or nanoclays.
  • epoxy resin systems have 20 to 50% by weight of a liquid epoxy resin, 0 to 30% by weight of a solid epoxy resin, 5 to 30% by weight of toughness modifiers, 1 to 5% by weight of physical or chemical blowing agents, 10 up to 40% by weight of fillers, 1 to 10% by weight of thixotropic agents and 2 to 10% by weight of heat-activatable hardeners.
  • Suitable toughness modifiers are reactive liquid rubbers based on nitrile rubber or derivatives of polyetherpolyol polyurethanes, core-shell polymers and similar systems known to those skilled in the art.
  • suitable expandable materials are one-component polyurethane compositions containing blowing agents, built up from crystalline polyesters containing OH groups mixed with other polyols, preferably polyether polyols, and polyisocyanates with blocked isocyanate groups.
  • the melting point of the crystalline polyester should be > 50 °C.
  • the isocyanate groups of the polyisocyanate can be blocked, for example, with nucleophiles such as caprolactam, phenols or benzoxalones.
  • blocked polyisocyanates such as are used, for example, in powder coating technology and are commercially available, for example, under the trade names Vestagon® BF 1350 and Vestagon® BF 1540 from Degussa GmbH, Germany.
  • So-called encapsulated or surface-deactivated polyisocyanates which are known to the person skilled in the art and are described, for example, in EP 0 204 970, are also suitable as isocyanates. Also suitable as expandable materials are two-component epoxy/polyurethane compositions containing blowing agents, as are described, for example, in WO 2005/080524 A1.
  • Ethylene-vinyl acetate compositions containing blowing agents are also suitable as expandable materials.
  • suitable expandable materials are marketed, for example, under the trade name SikaBaffle® 240, SikaBaffle® 250 or SikaBaffle® 255 by Sika Corp., USA, and are described in patents US Pat. No. 5,266,133 and US Pat. No. 5,373,027. Such expandable materials are particularly preferred for the present invention.
  • Preferred expandable materials with reinforcing properties are, for example, those sold under the trade name SikaReinforcer® 941 by Sika Corp., USA. These are described in US 6,387,470.
  • the expandable material has an expansion rate of 800% to 5000%, preferably 1000% to 4000%, more preferably 1500% to 3000%. Expandable materials with such expansion rates offer the advantage that a reliable seal or insulation of the structural element against liquids and noise can be achieved.
  • the expandable material is in the form of a temperature-induced material.
  • E-coating liquid can be used to cover the expandable material expand and thereby dam the cavity. This means that no additional work step is necessary.
  • the carrier can be made of any materials.
  • Preferred materials are plastics, in particular polyurethanes, polyamides, polyesters and polyolefins, preferably high-temperature-resistant polymers such as poly(phenylene ether), polysulfones or polyether sulfones, which in particular are also foamed; metals, in particular aluminum and steel; or grown organic materials, in particular wood or other (pressed) fiber materials or vitreous or ceramic materials; specifically also foamed materials of this type; or any combination of these materials.
  • Polyamide in particular polyamide 6, polyamide 6.6, polyamide 11, polyamide 12 or a mixture thereof is particularly preferably used.
  • the carrier can be solid, hollow, or foamed, for example, or have a lattice-like structure.
  • the surface of the support can typically be smooth, rough or textured.
  • the manufacturing process differs depending on whether the carrier consists of a material that can be processed by injection molding or not. If this is the case, a two-component injection molding process is usually used. First, a first component, in this case the carrier, is injected. After this first component has solidified, the cavity in the mold is enlarged or adjusted, or the molded part produced is placed in a new mold and a second component, in this case the expandable material, is injected onto the first component with a second injection unit.
  • a first component in this case the carrier
  • the cavity in the mold is enlarged or adjusted, or the molded part produced is placed in a new mold and a second component, in this case the expandable material, is injected onto the first component with a second injection unit.
  • the carrier consists of a material that cannot be produced by the injection molding process, for example a metal
  • the Carrier placed in a corresponding tool and the expandable material is injected onto the carrier.
  • the expandable material is attached to the carrier using special attachment means or methods.
  • carriers can also be produced by other methods, for example by extrusion.
  • the insulating element has a stack height which corresponds to an additional height in the stacking direction of a stack of insulating elements, by which the stack grows when another insulating element is stacked on top of the stack.
  • a stacking height of the insulating element is at most 80%, preferably at most 70%, preferably at most 60%, preferably at most 50%, preferably at most 40%, preferably at most 30% of a total height of an individual insulating element in the stacking direction.
  • the task at the outset is also achieved by a system with several such insulating elements, with the insulating elements being stacked on top of one another.
  • the system comprises at least 10, or at least 15, or at least 20, or at least 25, or at least 30 stacked insulation elements. In a further exemplary embodiment, the system comprises at most 150 or at most 120 or at most 100 or at most 80 or at most 60 stacked insulating elements.
  • a bottom insulating element of the stack rests on a base element.
  • Such a basic element has the advantage that a stack of insulating elements can be placed on a surface.
  • such basic elements can be used for an automated process.
  • each additional insulating element increases the stack by a maximum of 20 mm, particularly preferably by a maximum of 18 mm, particularly preferably by a maximum of 16 mm, particularly preferably by a maximum of 14 mm, particularly preferably by a maximum of 12 mm, particularly preferably by a maximum of 10 mm .
  • the close stacking of insulating elements has the advantage that the insulating elements can be packed more efficiently.
  • a stacking height of an individual insulating element is at most 80%, preferably at most 70%, preferably at most 60%, preferably at most 50%, preferably at most 40%, preferably at most 30% of a total height of an individual insulating element in the stacking direction.
  • the close stacking of insulating elements in turn has the advantage that the insulating elements can be packed more efficiently as a result.
  • the stacking height of an insulating element is at most 80%, preferably at most 70%, preferably at most 60%, preferably at most 50% of the hood height.
  • the object set at the outset is also achieved by a method for attaching insulating elements to structural elements in motor vehicles, the method comprising the steps: providing a system with stacked insulating elements according to the above description; and manipulating the insulating elements with an application robot, with at least one hood serving as a positioning aid for the application robot.
  • the application robot is loaded with multiple systems at the same time.
  • the removal of the individual insulating elements is carried out by the robotic arm.
  • a gripper of the application robot grips the insulation elements on the hood when manipulating them.
  • the insulating elements have at least two hoods, and both hoods serve as positioning aids during manipulation.
  • FIG. 1 shows an exemplary representation of a body
  • FIG. 5 shows a schematic representation of an exemplary stack with two insulating elements
  • FIG. 6a and 6b schematic representations of exemplary insulating elements.
  • FIG. 2a and 2b an exemplary insulating element 16 is shown schematically.
  • the insulating element 16 comprises a carrier 11 and an expandable material 13 arranged thereon.
  • the carrier 11 has a top 17 and a bottom 18.
  • the carrier 11 has two hoods 6, the hoods 6 having a different outline in this exemplary embodiment.
  • a hood 6 has a circular plan and a hood 6 has an oval plan.
  • the insulating element 16 comprises spacer elements 4 and fixing elements 3 for pre-fixing the insulating element 16 in a structural element.
  • a hood 6 is shown in cross section as an example.
  • a side wall 22 of the hood 6 protrudes only the underside 18 of the carrier 11, and in Figure 3b the side wall 22 of the hood 6 protrudes both the underside 18 and the top 17 of the carrier 11.
  • the hood 6 has a hood width 8, measured at an open side 23 of the hood 6 and perpendicular to the stacking direction. Furthermore, the hood 6 has a hood height 7, measured in the stacking direction. In addition, the hood 6 has a hood cavity 24 and a hood roof 21. A detail from a stack consisting of two insulating elements 16 is shown in each of FIGS. 4a to 4c.
  • the stacking direction 19 is marked in FIG. 4a.
  • a height 20 of the insulating element 16 and a stacking height 15 of an insulating element 16 are shown.
  • the insulating elements 16 have stoppers 9 on an outer side of the hood wall 22.
  • the stoppers 9 are formed and arranged in such a way that when stacked, the insulating elements 16 rest on one another on these stoppers 9.
  • FIG. 4c An alternative embodiment variant is shown in FIG. 4c, in which the stoppers 9 are arranged on an inside of the hood wall 22. Once again, the stoppers 9 are formed and arranged in such a way that when stacked, the insulating elements 16 each rest on one another on these stoppers 9 .
  • a stack 1 consisting of two insulating elements 16 is shown in FIG.
  • the insulating elements 16 each have a step 5.
  • the adjacent insulating elements 16 interlock, with this overthrust in the areas of the step 5, the hoods 6, the spacer elements 4, and the fixing elements 3 being present.
  • the insulating elements 16 are designed in such a way that when an insulating element 16 is arranged on a flat surface, the insulating element 16 lies in such a way that a main plane of the carrier 11 lies essentially parallel to the flat surface.
  • the step 5 of the carrier 11 and the hoods 6 are designed in such a way that the hoods 6 together with the step 5 form a bearing surface which is parallel to a plane of the top or bottom of the carrier 11 .
  • FIGS. 6a and 6b two different exemplary embodiments in relation to the contact points of the insulating elements 16 are shown schematically.
  • the insulating element 16 has three hoods 6, which act as three contact points.
  • the insulating element 16 has a hood 6, which acts as one of the three contact points.
  • the insulating element 16 has two further contact points in the area of the fixing elements 3; in this exemplary embodiment, the bases 2 of the fixing elements 3 are designed as contact points.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Insulating Bodies (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Body Structure For Vehicles (AREA)
  • Buffer Packaging (AREA)

Abstract

L'invention concerne un élément isolant destiné à isoler un élément structural d'un véhicule automobile, comprenant un support et un matériau expansible disposé sur le support. Le support présente au moins un dôme et est conçu de telle sorte que, lors de l'empilement d'une pluralité d'éléments isolants identiques, des dômes respectifs d'éléments isolants adjacents s'encastrent l'un dans l'autre.
EP21773542.2A 2020-09-14 2021-09-06 Élément isolant Pending EP4211023A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20195901.2A EP3967579A1 (fr) 2020-09-14 2020-09-14 Élément isolant
PCT/EP2021/074503 WO2022053433A1 (fr) 2020-09-14 2021-09-06 Élément isolant

Publications (1)

Publication Number Publication Date
EP4211023A1 true EP4211023A1 (fr) 2023-07-19

Family

ID=72474197

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20195901.2A Withdrawn EP3967579A1 (fr) 2020-09-14 2020-09-14 Élément isolant
EP21773542.2A Pending EP4211023A1 (fr) 2020-09-14 2021-09-06 Élément isolant

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20195901.2A Withdrawn EP3967579A1 (fr) 2020-09-14 2020-09-14 Élément isolant

Country Status (5)

Country Link
US (1) US20230256919A1 (fr)
EP (2) EP3967579A1 (fr)
JP (1) JP2023541533A (fr)
CN (1) CN116096626A (fr)
WO (1) WO2022053433A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517333A1 (de) 1985-05-14 1986-11-20 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung stabiler dispersionen feinteiliger polyisocyanate und deren verwendung
US5266133A (en) 1993-02-17 1993-11-30 Sika Corporation Dry expansible sealant and baffle composition and product
US6387470B1 (en) 1998-11-05 2002-05-14 Sika Corporation Sound deadening and structural reinforcement compositions and methods of using the same
JP3386730B2 (ja) * 1998-11-30 2003-03-17 株式会社ネオックスラボ 中空構造物における遮断・補強具
EP1568749A1 (fr) 2004-02-25 2005-08-31 Sika Technology AG Adhesif a deux composants pour la production de materiaux semi-finis et de composites sandwich
EP2176113B1 (fr) * 2007-08-16 2011-05-04 Henkel AG & Co. KGaA Ecran acoustique
GB201106813D0 (en) * 2011-04-21 2011-06-01 Zephyros Inc Improvements in or relating to baffles

Also Published As

Publication number Publication date
JP2023541533A (ja) 2023-10-03
CN116096626A (zh) 2023-05-09
US20230256919A1 (en) 2023-08-17
EP3967579A1 (fr) 2022-03-16
WO2022053433A1 (fr) 2022-03-17

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