FR2935951A1 - Floor trimming element for motor vehicle, has sound insulation layer coated with thermoplastic aspect film that is associated against front face of layer, where thickness of film is comprised between specific microns and specific microns - Google Patents

Floor trimming element for motor vehicle, has sound insulation layer coated with thermoplastic aspect film that is associated against front face of layer, where thickness of film is comprised between specific microns and specific microns Download PDF

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Publication number
FR2935951A1
FR2935951A1 FR0805091A FR0805091A FR2935951A1 FR 2935951 A1 FR2935951 A1 FR 2935951A1 FR 0805091 A FR0805091 A FR 0805091A FR 0805091 A FR0805091 A FR 0805091A FR 2935951 A1 FR2935951 A1 FR 2935951A1
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France
Prior art keywords
film
layer
insulation layer
microns
specific
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Granted
Application number
FR0805091A
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French (fr)
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FR2935951B1 (en
Inventor
Patrick Ansel
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Centre dEtude et de Recherche pour lAutomobile CERA
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Centre dEtude et de Recherche pour lAutomobile CERA
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Priority to FR0805091A priority Critical patent/FR2935951B1/en
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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
    • B60R13/0815—Acoustic or thermal insulation of passenger compartments
    • B60R13/083—Acoustic or thermal insulation of passenger compartments for fire walls or floors
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin 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
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/04—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets
    • B60N3/048—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets characterised by their structure
    • 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
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • 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
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
    • 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
    • B32B2274/00—Thermoplastic elastomer 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • 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
    • B32B2605/00—Vehicles
    • 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
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Transportation (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Laminated Bodies (AREA)

Abstract

The element (1) has a sound insulation layer (2) made of thermoplastic elastomer material i.e. ethylene propylene diene monomer (EPDM), and coated with a thermoplastic aspect film (3), where the layer has rigidity higher than 20 Newton, and the film is made of polyolefin. The film is associated against a front face of the layer, where the thickness of the film is comprised between 80 and 150 microns. A spring layer (4) made of elastically compressible material is associated in the back of the insulation layer. An independent claim is also included for a method for fabricating a floor trimming element.

Description

L'invention concerne un élément de garnissage de sol de véhicule automobile et un procédé de réalisation d'un tel élément. The invention relates to a motor vehicle floor covering element and a method for producing such an element.

Il est connu de réaliser un élément de garnissage de sol de véhicule automobile, ledit élément comprenant une couche d'isolation acoustique à base de matériau élastomère thermoplastique de masse surfacique supérieure à 2 kg/m2, ladite couche étant revêtue d'un film d'aspect thermoplastique associé contre la face endroit de ladite couche par l'intermédiaire d'une couche de raidissement, notamment à base de polyéthylène de basse densité, ledit film présentant une épaisseur comprise entre 80 et 150 microns. It is known to produce a motor vehicle floor-covering element, said element comprising an acoustic insulation layer based on a thermoplastic elastomer material having a mass per unit area greater than 2 kg / m 2, said layer being coated with a film of associated thermoplastic appearance against the face of said layer by means of a stiffening layer, in particular based on low density polyethylene, said film having a thickness of between 80 and 150 microns.

L'incorporation d'une couche de raidissement complexifie la fabrication de l'élément et en augmente le coût. The incorporation of a stiffening layer complicates the manufacture of the element and increases the cost.

L'invention a pour but de pallier ces inconvénients. The invention aims to overcome these disadvantages.

A cet effet, et selon un premier aspect, l'invention propose un élément de garnissage de sol de véhicule automobile, ledit élément comprenant une couche d'isolation acoustique à base de matériau élastomère thermoplastique de masse surfacique supérieure à 2 kg/m2, ladite couche présentant une rigidité supérieure à 20 N et étant revêtue d'un film d'aspect thermoplastique associé contre la face endroit de ladite couche, ledit film présentant une épaisseur comprise entre 80 et 150 microns. For this purpose, and according to a first aspect, the invention proposes a motor vehicle floor covering element, said element comprising an acoustic insulation layer based on a thermoplastic elastomer material having a mass per unit area greater than 2 kg / m 2, layer having a rigidity greater than 20 N and being coated with a film of thermoplastic appearance associated against the face of said layer, said film having a thickness of between 80 and 150 microns.

Ainsi, on s'affranchit de la couche de raidissement, la couche d'isolation acoustique étant formulée de sorte à présenter la rigidité attendue. Thus, it eliminates the stiffening layer, the acoustic insulation layer being formulated so as to have the expected rigidity.

Selon un deuxième aspect, l'invention propose un procédé de réalisation d'un tel élément. D'autres particularités et avantages de l'invention apparaîtront dans la description qui suit, faite en référence aux figures jointes dans les quelles :30 • la figure 1 est une coupe schématique partielle d'un élément de garnissage selon une réalisation, • la figure 2 est une représentation schématique de la mesure de la rigidité de la couche d'isolation, une éprouvette découpée dans ladite couche et disposée en U sur un support étant représentée non comprimée (figure 2a) et en fin de compression (figure 2b). According to a second aspect, the invention proposes a method of producing such an element. Other features and advantages of the invention will become apparent from the description which follows, with reference to the appended figures in which: FIG. 1 is a partial diagrammatic section of a packing element according to one embodiment; FIG. 2 is a schematic representation of the measurement of the rigidity of the insulation layer, a test piece cut in said layer and arranged in U on a support being shown uncompressed (Figure 2a) and at the end of compression (Figure 2b).

En référence aux figures, on décrit un élément 1 de garnissage de sol de véhicule automobile, ledit élément comprenant une couche d'isolation 2 acoustique à base de matériau élastomère thermoplastique de masse surfacique supérieure à 2 kg/m2, ladite couche présentant une rigidité supérieure à 20 N et étant revêtue d'un film d'aspect 3 thermoplastique associé contre la face endroit de ladite couche, ledit film présentant une épaisseur comprise entre 80 et 150 microns. With reference to the figures, a motor vehicle floor covering element 1 is described, said element comprising an acoustic insulation layer 2 based on a thermoplastic elastomer material having a mass per unit area greater than 2 kg / m 2, said layer having a higher rigidity at 20 N and being coated with an associated thermoplastic appearance film 3 against the face of said layer, said film having a thickness of between 80 and 150 microns.

La rigidité de la couche 2 est mesurée par la méthode décrite ci-après : • découper dans la couche 2 une éprouvette 10 rectangulaire de 80 mm par 20 mm, • prévoir un support 11 agencé pour permettre une conformation de ladite éprouvette en U renversé, les branches 12 du U étant écartées de 20 mm, les parties extrêmes 13 du U étant chacune solidaire dudit support sur une longueur respective de 10 mm de sorte que ladite éprouvette présente une longueur développée déformable de 60 mm, • prévoir un dispositif ù non représenté - de mesure de la force appliquée en fonction d'une distance de déplacement - notamment de type Instron - ledit dispositif étant pourvu d'une tête 14 de pressage, ladite tête étant sous forme d'un prisme présentant deux faces 15 de 30 mm de hauteur minimum, lesdites faces définissant entre elles un angle 16 de 25° selon une arête 17 horizontale d'appui de 30 mm, • disposer ladite tête de sorte que ladite arête soit en contact avec toute la largeur médiane de ladite éprouvette (figure 2a), 5 3 • faire descendre ladite tête sur une distance de 20 mm à une vitesse de 50 mm/minute, de sorte à disposer le U en configuration déformée finale (figure 2b), et mesurer la force finale appliquée (en N), ladite force finale définissant la rigidité de la couche 2. Selon une réalisation, la rigidité de la couche 2 est supérieure à 30 N. The rigidity of the layer 2 is measured by the method described below: • cut in the layer 2 a rectangular test piece 10 of 80 mm by 20 mm, • provide a support 11 arranged to allow a conformation of said inverted U-shaped test piece, the branches 12 of the U being spaced apart by 20 mm, the end portions 13 of the U being each secured to said support on a respective length of 10 mm so that said test piece has a deformable developed length of 60 mm, • provide a device - not shown measuring the force applied as a function of a displacement distance, in particular of the Instron type, said device being provided with a pressing head 14, said head being in the form of a prism having two faces of 30 mm in diameter; minimum height, said faces defining between them an angle 16 of 25 ° along a horizontal support edge 30 mm, • arrange said head so that said edge is in con tact with all the median width of said specimen (Figure 2a), • 3 down said head a distance of 20 mm at a speed of 50 mm / minute, so as to have the U in final deformed configuration (Figure 2b) and measuring the applied final force (in N), said final force defining the rigidity of the layer 2. In one embodiment, the rigidity of the layer 2 is greater than 30 N.

Selon une réalisation, la rigidité de la couche 2 est inférieure à 60 N û préférentiellement inférieure à 50 N - de sorte à présenter la souplesse requise 10 pour apporter des propriétés d'isolation acoustique satisfaisantes. In one embodiment, the rigidity of the layer 2 is less than 60 N, preferably less than 50 N, so as to have the flexibility required to provide satisfactory acoustic insulation properties.

Selon une réalisation, la couche d'isolation 2 présente une masse surfacique supérieure à 2,5 kglm2, et notamment de l'ordre de 2,8 kg/m2. According to one embodiment, the insulation layer 2 has a basis weight greater than 2.5 kglm2, and in particular of the order of 2.8 kg / m2.

15 Selon une réalisation, la couche d'isolation 2 est à base d'éthylène propylène diène monomère (EPDM). In one embodiment, the insulating layer 2 is based on ethylene propylene diene monomer (EPDM).

Selon une réalisation, la couche d'isolation 2 est chargée avec une poudre de charge minérale, notamment à base de baryte ou de carbonate de calcium. Selon une réalisation, le film d'aspect 3 est à base de polyoléfine, notamment de polyéthylène ou polypropylène. According to one embodiment, the insulating layer 2 is loaded with a mineral filler powder, in particular based on barite or calcium carbonate. According to one embodiment, the film of aspect 3 is based on polyolefin, especially polyethylene or polypropylene.

Selon une réalisation, le film d'aspect 3 ou la couche d'isolation acoustique 2 25 comprend un pigment, notamment noir. According to one embodiment, the aspect film 3 or the acoustic insulation layer 2 comprises a pigment, in particular black.

Selon la réalisation représentée, l'élément 1 comprend en outre une couche ressort 4 de matériau élastiquement compressible, par exemple à base de mousse ou de feutre, associée en envers de la couche d'isolation 2, de sorte à 30 former un système d'isolation acoustique de type masse-ressort. According to the embodiment shown, the element 1 further comprises a spring layer 4 of elastically compressible material, for example based on foam or felt, associated in reverse of the insulation layer 2, so as to form a system of sound insulation of mass-spring type.

Dans le cas où la couche ressort 4 est à base de mousse surmoulée, on peut prévoir que l'envers de la couche d'isolation 2 soit l'objet d'un traitement de 20 surface, par exemple de type Corona , ou bien soit associée à un non tissé, non représenté, favorisant l'accrochage de la mousse. In the case where the spring layer 4 is based on overmolded foam, it is possible for the backside of the insulation layer 2 to be the subject of a surface treatment, for example of the Corona type, or else associated with a nonwoven, not shown, promoting the attachment of the foam.

On décrit à présent un procédé de réalisation d'un élément 1 prévoyant de 5 réaliser la couche d'isolation 2 par extrusion, le film d'aspect 3 étant calandré en sortie de filière contre ladite couche. We will now describe a method of producing an element 1 providing for producing the insulation layer 2 by extrusion, the appearance film 3 being calendered at the die outlet against said layer.

Claims (9)

REVENDICATIONS1. Elément (1) de garnissage de sol de véhicule automobile, ledit élément comprenant une couche d'isolation (2) acoustique à base de matériau élastomère thermoplastique de masse surfacique supérieure à 2 kg/m2, ladite couche présentant une rigidité supérieure à 20 N et étant revêtue d'un film d'aspect (3) thermoplastique associé contre la face endroit de ladite couche, ledit film présentant une épaisseur comprise entre 80 et 150 microns. REVENDICATIONS1. Element (1) of motor vehicle floor covering, said element comprising an acoustic insulation layer (2) based on a thermoplastic elastomer material with a mass per unit area greater than 2 kg / m 2, said layer having a rigidity greater than 20 N and being coated with a thermoplastic aspect film (3) associated with the face of said layer, said film having a thickness of between 80 and 150 microns. 2. Elément selon la revendication 1, caractérisé en ce que la couche d'isolation (2) présente une rigidité supérieure à 30 N. 2. Element according to claim 1, characterized in that the insulation layer (2) has a rigidity greater than 30 N. 3. Elément selon la revendication 1 ou 2, caractérisé en ce que la couche d'isolation (2) présente une masse surfacique supérieure à 2,5 kg/m2. 3. Element according to claim 1 or 2, characterized in that the insulation layer (2) has a mass per unit area greater than 2.5 kg / m2. 4. Elément selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la couche d'isolation (2) est à base d'éthylène propylène diène monomère. 4. Element according to any one of claims 1 to 3, characterized in that the insulation layer (2) is based on ethylene propylene diene monomer. 5. Elément selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la couche d'isolation (2) est chargée avec une poudre de charge minérale. 5. Element according to any one of claims 1 to 4, characterized in that the insulation layer (2) is loaded with a mineral filler powder. 6. Elément selon l'une quelconque des revendications 1 à 5, caractérisé en ce 25 que le film d'aspect (3) est à base de polyoléfine. 6. Element according to any one of claims 1 to 5, characterized in that the film of appearance (3) is based on polyolefin. 7. Elément selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le film d'aspect (3) ou la couche d'isolation (2) comprend un pigment. 30 Element according to any one of claims 1 to 6, characterized in that the appearance film (3) or the insulation layer (2) comprises a pigment. 30 8. Elément selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il comprend en outre une couche ressort (4) de matériau élastiquement compressible associée en envers de la couche d'isolation (2).20 8. Element according to any one of claims 1 to 7, characterized in that it further comprises a spring layer (4) of elastically compressible material associated in reverse of the insulation layer (2) .20 9. Procédé de réalisation d'un élément selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'il prévoit de réaliser la couche d'isolation (2) par extrusion, le film d'aspect (3) étant calandré en sortie de filière contre ladite couche.5 9. A method of producing an element according to any one of claims 1 to 8, characterized in that it provides for producing the insulation layer (2) by extrusion, the appearance film (3) being calendered at the outlet of the die against said layer.
FR0805091A 2008-09-16 2008-09-16 MOTOR VEHICLE FLOOR COMPONENT COMPRISING A RIGID ACOUSTIC INSULATION LAYER Expired - Fee Related FR2935951B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0805091A FR2935951B1 (en) 2008-09-16 2008-09-16 MOTOR VEHICLE FLOOR COMPONENT COMPRISING A RIGID ACOUSTIC INSULATION LAYER

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Application Number Priority Date Filing Date Title
FR0805091A FR2935951B1 (en) 2008-09-16 2008-09-16 MOTOR VEHICLE FLOOR COMPONENT COMPRISING A RIGID ACOUSTIC INSULATION LAYER

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FR2935951B1 FR2935951B1 (en) 2013-03-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015110561A1 (en) * 2014-01-24 2015-07-30 Volkswagen Aktiengesellschaft Soundproofing element and motor vehicle
FR3092537A1 (en) * 2019-02-08 2020-08-14 Treves Products, Services & Innovation Acoustic protection screen for motor vehicle engine compartment
US20220111804A1 (en) * 2019-02-08 2022-04-14 Treves Products, Services & Innovation Sound protection screen for a motor vehicle engine compartment

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030096079A1 (en) * 2001-11-21 2003-05-22 Anthony Messina Sound attenuating/absorbing laminates and methods of making same
US20050126848A1 (en) * 2003-10-31 2005-06-16 Dow Global Technologies Inc. Sound insulating system
US20050217932A1 (en) * 2004-04-06 2005-10-06 Woodman Daniel S Decorative interior sound absorbing panel
US20080073146A1 (en) * 2003-01-02 2008-03-27 3M Innovative Properties Company Sound absorptive multilayer composite

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030096079A1 (en) * 2001-11-21 2003-05-22 Anthony Messina Sound attenuating/absorbing laminates and methods of making same
US20080073146A1 (en) * 2003-01-02 2008-03-27 3M Innovative Properties Company Sound absorptive multilayer composite
US20050126848A1 (en) * 2003-10-31 2005-06-16 Dow Global Technologies Inc. Sound insulating system
US20050217932A1 (en) * 2004-04-06 2005-10-06 Woodman Daniel S Decorative interior sound absorbing panel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015110561A1 (en) * 2014-01-24 2015-07-30 Volkswagen Aktiengesellschaft Soundproofing element and motor vehicle
FR3092537A1 (en) * 2019-02-08 2020-08-14 Treves Products, Services & Innovation Acoustic protection screen for motor vehicle engine compartment
US20220111804A1 (en) * 2019-02-08 2022-04-14 Treves Products, Services & Innovation Sound protection screen for a motor vehicle engine compartment

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