WO2020233979A1 - Process for lining internal components of vehicles, associated lined components and vehicles - Google Patents

Process for lining internal components of vehicles, associated lined components and vehicles Download PDF

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Publication number
WO2020233979A1
WO2020233979A1 PCT/EP2020/062436 EP2020062436W WO2020233979A1 WO 2020233979 A1 WO2020233979 A1 WO 2020233979A1 EP 2020062436 W EP2020062436 W EP 2020062436W WO 2020233979 A1 WO2020233979 A1 WO 2020233979A1
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WO
WIPO (PCT)
Prior art keywords
layer
natural material
transparent
vehicles
thin layer
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Application number
PCT/EP2020/062436
Other languages
French (fr)
Inventor
Claire BONY
Original Assignee
Smrc Automotive Holdings Netherlands B.V.
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Publication date
Application filed by Smrc Automotive Holdings Netherlands B.V. filed Critical Smrc Automotive Holdings Netherlands B.V.
Priority to EP20722346.2A priority Critical patent/EP3972826A1/en
Publication of WO2020233979A1 publication Critical patent/WO2020233979A1/en

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Classifications

    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/002—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising natural stone or artificial stone
    • 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
    • B32B27/12—Layered products comprising a layer of synthetic resin next to 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
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • B32B5/022—Non-woven fabric
    • 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
    • B32B5/024—Woven fabric
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/28—Multiple coating on one surface
    • 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
    • B32B2262/101—Glass 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
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • 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

Definitions

  • the present invention falls within the framework of the trimmings of interior parts of motor vehicles using natural materials such as sheets of stone.
  • the aim of the present invention is therefore to provide an at least partial solution to this problem, that is to say to keep, after the varnishing operation, the appearance as close as possible to the sheet. of raw natural stone.
  • the present invention uses an aqueous-based adhesion primer of the PU varnish type because it turned out, unexpectedly and surprisingly, that this is the nature of the 1 st layer (primer) which is decisive for keeping the initial appearance of the stone as much as possible.
  • additives such as pigments or natural or synthetic dyes, texturing agents, etc. can be added to "catch up” or to somehow compensate for certain original characteristics of the stone lost or attenuated during the varnishing operation (glitter appearance, roughness, etc.).
  • the present invention aims to overcome these drawbacks.
  • the present invention relates to a method for dressing interior parts of vehicles, in particular motor vehicles with a thin layer of natural material, in particular an inorganic material such as stone, glass or ceramic or an organic material such as wood consisting in dressing the interior part of the vehicle by coating it with an optional adhesion layer on which is applied a support layer of the thin layer of natural material and then said thin layer of material natural proper, characterized in that a transparent water-based polyurethane (PU) primary adhesion layer is applied to said thin layer of natural material before covering the whole with at least one transparent protective surface layer, in particular one or more transparent varnish surface layers.
  • PU polyurethane
  • FIG. 1 shows a side sectional view of all the layers used for implementing the method according to the invention
  • FIG. 2 is a photo showing two comparative examples of dressing.
  • the product obtained through the implementation of the method of covering interior parts 1 of vehicles according to the invention, in particular of motor vehicles can, for example be applied to an interior panel of a door.
  • a thin layer 4 of natural material in particular an inorganic material such as stone, glass or ceramic or an organic material such as wood
  • the interior part 1 of the vehicle by coating it with an optional (optional) adhesion layer 2 on which is applied a support layer 3 of the thin layer 4 of natural material then said thin layer 4 of natural material proper.
  • the method is characterized in that a transparent water-based polyurethane (PU) primary adhesion layer 5 is applied to said thin layer 4 of natural material before covering the whole with at least one surface layer 6, 6.
  • transparent protective in particular at least one layer of varnish.
  • the adhesion layer 2 is not necessary.
  • the primer adhesion layer 5 is a mono-component polyurethane pore filler product based on water and containing glycol ethers such as butoxyethanol and methoxyethanol. It is sprayed manually or automatically to a minimum thickness of 10 microns, then undergoing drying or baking with a minimum temperature of 45 ° C.
  • the transparent surface layer 6, 6 ′ can be produced with a two-component polyurethane transparent varnish, containing solvents such as butyl acetate, with a thickness of 20 microns minimum with ambient air drying.
  • a decorative varnish one can take, by way of nonlimiting example, this same two-component polyurethane transparent varnish of at least equivalent thickness, applied and dried in an identical manner.
  • Another non-limiting example is a two-component polyurethane transparent varnish to which texturizing elements have been added.
  • Another example is a transparent two-component polyurethane varnish to which inorganic pigments have been added.
  • the method is further characterized in that the interior part 1 of the vehicle is made of a synthetic material, such as a plastic material of the polycarbonate (PC) type, of PC-ABS, of polypropylene. (PP) or in polyurethane and polypropylene (PU + PP), in particular in PU + PP filled with glass fibers and / or natural fibers.
  • a synthetic material such as a plastic material of the polycarbonate (PC) type, of PC-ABS, of polypropylene. (PP) or in polyurethane and polypropylene (PU + PP), in particular in PU + PP filled with glass fibers and / or natural fibers.
  • the method according to the invention is characterized in that the adhesion layer 2 is made of PUR (polyurethane) adhesive in aqueous base.
  • PUR polyurethane
  • the method according to the invention is characterized in that the adhesion layer 2 is made of an adhesive not containing PUR (polyurethane) and of a non-aqueous solvent base .
  • the support layer 3 of the thin layer 4 of natural material is made of a woven or non-woven textile material and has a thickness ranging from 100 ⁇ m to 5 mm.
  • This textile material can optionally be covered with a suitable conventional resin, well known to those skilled in the art, or not.
  • the method according to the invention is characterized in that the thin layer 4 of natural material is made of stone, glass, ceramic or wood and has a thickness ranging from 50 ⁇ m to 2 mm.
  • the primary transparent adhesion layer 5 for example made of PU, has a thickness of at least 10 ⁇ m, preferably ranging from 10 ⁇ m to 40 ⁇ m, and more preferably a thickness ranging from 10 ⁇ m at 15 pm.
  • said primary layer 5 has at least one additive which compensates for a loss of an original visual or tactile characteristic or adds an additional visual or tactile characteristic to the natural material, in particular a characteristic lost following the operation of depositing the or protective surface layers 6, 6 ', for example of varnish.
  • the at least one aforementioned additive may be present in said one or more protective layers 6, 6 ′ in addition to or in place of that or those present in said primary layer 5.
  • the applied protective surface layer (s) 6, 6 ′ comprises at least one layer of transparent solvent-based PU lacquer.
  • the method according to the invention is further characterized in that the layer or all of the surface layers 6, 6 'of protection, for example of varnish, has a thickness ranging from 15 ⁇ m to 300 ⁇ m. , especially 40 ⁇ m to 60 ⁇ m.
  • the present invention also relates to an interior part 1 of a vehicle dressed thanks to the implementation of the method according to the invention and a vehicle, in particular a motor vehicle characterized in that it has at least one interior part 1 dressed thanks to the implementation of the method according to the invention.
  • Figure 1 shows all of the layers deposited to form the trim of the interior part 1, for example a door or dashboard element of a passenger or sports car.

Abstract

The invention relates to a process for lining internal components (1) of vehicles with a fine layer (4) of natural material, in particular an inorganic material such as stone or an organic material, consisting in lining the internal component (1) of the vehicle by coating it with an optional adhesive layer (2), to which a support layer (3) for the fine layer (4) of natural material is applied before the fine layer (4) of natural material per se is applied, the process being characterised in that a transparent aqueous primary adhesive layer (5) of polyurethane (PU) is applied to the fine layer (4) of natural material and then all layers are covered with at least one transparent protective coating layer (6, 6'). The invention also relates to components and vehicles lined in this manner.

Description

Description Description
Titre de l'invention : Procédé d’habillage de pièces intérieures de véhicules, pièces habillées et véhicules associés Title of the invention: Method of dressing interior parts of vehicles, dressed parts and associated vehicles
[0001 ] La présente invention s’inscrit dans le cadre des habillages de pièces intérieures de véhicules automobiles à l’aide de matériaux naturels tels que les feuilles de pierre. [0001] The present invention falls within the framework of the trimmings of interior parts of motor vehicles using natural materials such as sheets of stone.
[0002] Cette technologie apparue ces dernières années est notamment décrite dans les brevets US 2016/0107418 (complexage d’une fine couche de pierre avec une colle avec une couche de maintien en matière textile) et de la société Hyundai Motor Company, US 6547910 de Daimler Chrysler AG et US 2004/0121089 de Hanton & Williams LLP qui décrit notamment l’habillage d’une pièce automobile avec un complexe tel que celui précité. [0002] This technology, which has appeared in recent years, is described in particular in patents US 2016/0107418 (lamination of a thin layer of stone with an adhesive with a supporting layer of textile material) and of the company Hyundai Motor Company, US 6547910 from Daimler Chrysler AG and US 2004/0121089 from Hanton & Williams LLP which describes in particular the covering of an automobile part with a complex such as that mentioned above.
[0003] Elle passe par la réalisation d’une fine couche minérale, extraite d’un bloc de pierre à l’aide d’un polymère adhésif déposé sur ce bloc de pierre ; on extrait la fine couche en question par arrachement/pelage, et laminage de cette fine couche de pierre sur une couche de maintien souple (en textile par exemple). [0003] It involves the production of a thin mineral layer, extracted from a block of stone using an adhesive polymer deposited on this block of stone; the thin layer in question is extracted by tearing / peeling, and laminating this thin layer of stone on a flexible support layer (in textile for example).
[0004] Afin de garantir la tenue au cahier des charges de la pièce ainsi revêtue (abrasion, tenue à la chaleur, résistance aux UV, etc.), il est nécessaire de déposer une couche de vernis sur la surface de la couche. [0004] In order to guarantee the performance of the part thus coated with the specifications (abrasion, heat resistance, UV resistance, etc.), it is necessary to deposit a layer of varnish on the surface of the layer.
[0005] La « mouillabilité » de beaucoup de matières naturelles, ainsi que celle de la feuille de pierre (comme la pierre naturelle) fait qu’elle change d’aspect en devenant plus foncée lorsqu’elle est vernie. Or, cela nuit à la perception qualitative de l’aspect de la pièce, car en devenant plus foncée, on s’éloigne de l’aspect recherché, à savoir l’aspect originel de la pierre brute. [0005] The "wettability" of many natural materials, as well as that of sheet stone (such as natural stone) causes it to change its appearance, becoming darker when varnished. However, this affects the qualitative perception of the appearance of the piece, because by becoming darker, we move away from the desired appearance, namely the original appearance of the rough stone.
[0006] Les dépôts précités divulguent une couche de surface de type « coating layer » : [0006] The aforementioned deposits disclose a surface layer of the “coating layer” type:
- US 2016/010741 : « coating layer » (5): un film mince de peinture (paragraphes [0042] et [0043]), - US 6547910: « transparent coating » aux paragraphes [6] ligne 25, [9] et à la revendication 10 de ce document. - US 2016/010741: “coating layer” (5): a thin film of paint (paragraphs [0042] and [0043]), - US 6547910: “transparent coating” in paragraphs [6] line 25, [9] and in claim 10 of this document.
[0007] La définition et la nature des couches ne sont toutefois pas précisées. [0007] The definition and the nature of the layers are however not specified.
[0008] Le but de la présente invention est donc de proposer une solution, au moins partielle, à ce problème c’est-à-dire de conserver, après l’opération de vernissage, l’aspect le plus proche possible de la feuille de pierre naturelle brute. [0008] The aim of the present invention is therefore to provide an at least partial solution to this problem, that is to say to keep, after the varnishing operation, the appearance as close as possible to the sheet. of raw natural stone.
[0009] A cette fin, la présente invention utilise un primaire d’adhésion de base aqueuse du type vernis PU car il s’est avéré, de façon inattendue et surprenante, que c’est la nature de la 1 ere couche (primaire) qui est déterminante pour conserver au maximum l’aspect initial de la pierre. To this end, the present invention uses an aqueous-based adhesion primer of the PU varnish type because it turned out, unexpectedly and surprisingly, that this is the nature of the 1 st layer (primer) which is decisive for keeping the initial appearance of the stone as much as possible.
[0010] De façon avantageuse, des additifs tels que des pigments ou des colorants naturels ou de synthèse, des agents de texture, etc. peuvent être rajoutés pour « rattraper » ou compenser en quelque sorte certaines caractéristiques originelles de la pierre perdues ou atténuées lors de l’opération de vernissage (aspect pailleté, rugosité, etc.). [0010] Advantageously, additives such as pigments or natural or synthetic dyes, texturing agents, etc. can be added to "catch up" or to somehow compensate for certain original characteristics of the stone lost or attenuated during the varnishing operation (glitter appearance, roughness, etc.).
[0011 ] La présente invention a pour but de pallier ces inconvénients. The present invention aims to overcome these drawbacks.
[0012] A cet effet, la présente invention a pour objet un procédé d’habillage de pièces intérieures de véhicules, en particulier de véhicules automobiles par une fine couche de matériau naturel, en particulier un matériau inorganique tel que la pierre, du verre ou de la céramique ou un matériau organique comme le bois consistant à habiller la pièce intérieure de véhicule en la revêtant d’une couche optionnelle d’adhésion sur laquelle on applique une couche de support de la fine couche de matériau naturel puis ladite fine couche de matériau naturel proprement dite, caractérisé en ce qu’on applique sur ladite fine couche de matériau naturel une couche primaire d’adhésion en polyuréthane (PU) à base aqueuse transparente avant de recouvrir le tout d’au moins une couche de surface transparente de protection, en particulier d’une ou de plusieurs couches de surface transparentes en vernis. [0012] To this end, the present invention relates to a method for dressing interior parts of vehicles, in particular motor vehicles with a thin layer of natural material, in particular an inorganic material such as stone, glass or ceramic or an organic material such as wood consisting in dressing the interior part of the vehicle by coating it with an optional adhesion layer on which is applied a support layer of the thin layer of natural material and then said thin layer of material natural proper, characterized in that a transparent water-based polyurethane (PU) primary adhesion layer is applied to said thin layer of natural material before covering the whole with at least one transparent protective surface layer, in particular one or more transparent varnish surface layers.
[0013] L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence aux dessins schématiques annexés, dans lesquels : [0014] [Fig. 1 ] représente une vue en coupe latérale de l’ensemble des couches utilisées pour la mise en oeuvre du procédé selon l’invention, The invention will be better understood, thanks to the description below, which relates to a preferred embodiment, given by way of non-limiting example, and explained with reference to the accompanying schematic drawings, in which: [0014] [Fig. 1] shows a side sectional view of all the layers used for implementing the method according to the invention,
[0015] [Fig. 2] représente une photo montrant deux exemples comparatifs d’habillage. [0015] [Fig. 2] is a photo showing two comparative examples of dressing.
[0016] Comme on peut le voir sur la figure 1 , le produit obtenu grâce à la mise en oeuvre du procédé d’habillage de pièces intérieures 1 de véhicules selon l’invention, en particulier de véhicules automobiles peut, par exemple s’appliquer à un panneau intérieur d’une portière. As can be seen in Figure 1, the product obtained through the implementation of the method of covering interior parts 1 of vehicles according to the invention, in particular of motor vehicles can, for example be applied to an interior panel of a door.
[0017] On habille ainsi par une fine couche 4 de matériau naturel, en particulier un matériau inorganique tel que la pierre, du verre ou de la céramique ou un matériau organique comme le bois, la pièce intérieure 1 de véhicule en la revêtant d’une couche optionnelle (facultative) d’adhésion 2 sur laquelle on applique une couche de support 3 de la fine couche 4 de matériau naturel puis ladite fine couche 4 de matériau naturel proprement dite. Le procédé est caractérisé en ce qu’on applique sur ladite fine couche 4 de matériau naturel une couche primaire d’adhésion 5 en polyuréthane (PU) à base aqueuse transparente avant de recouvrir le tout d’au moins une couche de surface 6, 6’ transparente de protection, en particulier d’au moins une couche de vernis. Thus dressed by a thin layer 4 of natural material, in particular an inorganic material such as stone, glass or ceramic or an organic material such as wood, the interior part 1 of the vehicle by coating it with an optional (optional) adhesion layer 2 on which is applied a support layer 3 of the thin layer 4 of natural material then said thin layer 4 of natural material proper. The method is characterized in that a transparent water-based polyurethane (PU) primary adhesion layer 5 is applied to said thin layer 4 of natural material before covering the whole with at least one surface layer 6, 6. transparent protective, in particular at least one layer of varnish.
[0018] Dans un mode de réalisation particulier, on procède à une étape de surmoulage direct de la couche de support 3 avec ladite fine couche 4 de matériau naturel. Dans ce cas la couche d’adhésion 2 n’est pas nécessaire. In a particular embodiment, one proceeds to a direct overmolding step of the support layer 3 with said thin layer 4 of natural material. In this case the adhesion layer 2 is not necessary.
[0019] A titre d’exemple non limitatif, la couche primaire d’adhésion 5 est un produit bouche-pores polyuréthane mono-composant à base aqueuse et contenant des éthers de glycol tels que le butoxyéthanol et le méthoxyéthanol. Il est pulvérisé manuellement ou automatiquement selon une épaisseur de 10 microns minimum, subissant ensuite un séchage ou une cuisson avec une température minimum de 45 °C. [0019] By way of nonlimiting example, the primer adhesion layer 5 is a mono-component polyurethane pore filler product based on water and containing glycol ethers such as butoxyethanol and methoxyethanol. It is sprayed manually or automatically to a minimum thickness of 10 microns, then undergoing drying or baking with a minimum temperature of 45 ° C.
[0020] Toujours, à titre d’exemple non limitatif, la couche de surface 6, 6’ transparente peut être réalisée avec un vernis transparent polyuréthane bi- composants, contenant des solvants tel que l’acétate de butyle, d’une épaisseur de 20 microns minimum avec un séchage à l’air ambiant. [0021 ] Pour un vernis de décor, on pourra prendre, à titre d’exemple non limitatif, ce même vernis transparent polyuréthane bi-composants d’une épaisseur au moins équivalente, appliqué et séché de manière identique. Un autre exemple non limitatif est un vernis transparent polyuréthane bi-composants auquel des éléments texturants ont été rajoutés. Un autre exemple est un vernis transparent polyuréthane bi-composants auquel des pigments non organiques ont été rajoutés. Still, by way of nonlimiting example, the transparent surface layer 6, 6 ′ can be produced with a two-component polyurethane transparent varnish, containing solvents such as butyl acetate, with a thickness of 20 microns minimum with ambient air drying. For a decorative varnish, one can take, by way of nonlimiting example, this same two-component polyurethane transparent varnish of at least equivalent thickness, applied and dried in an identical manner. Another non-limiting example is a two-component polyurethane transparent varnish to which texturizing elements have been added. Another example is a transparent two-component polyurethane varnish to which inorganic pigments have been added.
[0022] Conformément à la présente invention, le procédé est encore caractérisé en ce que la pièce intérieure 1 de véhicule est réalisée en une matière synthétique, telle qu’une matière plastique de type polycarbonate (PC), en PC-ABS, en polypropylène (PP) ou en polyuréthane et polypropylène (PU+PP), notamment en PU+PP chargé de fibres de verre et/ou de fibres naturelles. According to the present invention, the method is further characterized in that the interior part 1 of the vehicle is made of a synthetic material, such as a plastic material of the polycarbonate (PC) type, of PC-ABS, of polypropylene. (PP) or in polyurethane and polypropylene (PU + PP), in particular in PU + PP filled with glass fibers and / or natural fibers.
[0023] Avantageusement, et selon un mode de réalisation préféré, le procédé selon l’invention est caractérisé en ce que la couche d’adhésion 2 est réalisée en colle PUR (polyuréthane) en base aqueuse. Advantageously, and according to a preferred embodiment, the method according to the invention is characterized in that the adhesion layer 2 is made of PUR (polyurethane) adhesive in aqueous base.
[0024] Avantageusement, selon un autre mode de réalisation, le procédé selon l’invention est caractérisé en ce que la couche d’adhésion 2 est réalisée en une colle ne contenant pas de PUR (polyuréthane) et en une base solvantée non- aqueuse. Advantageously, according to another embodiment, the method according to the invention is characterized in that the adhesion layer 2 is made of an adhesive not containing PUR (polyurethane) and of a non-aqueous solvent base .
[0025] Selon une autre caractéristique avantageuse, la couche de support 3 de la fine couche 4 de matériau naturel est réalisée dans une matière textile tissée ou non-tissée et présente une épaisseur allant de 100 pm à 5 mm. Cette matière textile peut être recouverte optionnellement avec une résine classique adaptée, bien connue de l’homme du métier, ou non. [0025] According to another advantageous characteristic, the support layer 3 of the thin layer 4 of natural material is made of a woven or non-woven textile material and has a thickness ranging from 100 μm to 5 mm. This textile material can optionally be covered with a suitable conventional resin, well known to those skilled in the art, or not.
[0026] Avantageusement, le procédé selon l’invention est caractérisé en ce que la fine couche 4 de matériau naturel est réalisée en pierre, verre, céramique ou bois et présente une épaisseur allant de 50 pm à 2 mm. [0026] Advantageously, the method according to the invention is characterized in that the thin layer 4 of natural material is made of stone, glass, ceramic or wood and has a thickness ranging from 50 μm to 2 mm.
[0027] Conformément à la présente invention, la couche primaire 5 d’adhésion transparente, par exemple en PU, présente une épaisseur de 10 pm au minimum de préférence allant de 10 pm à 40 pm, et plus préférentiellement une épaisseur allant de 10 pm à 15 pm. [0028] Avantageusement ladite couche primaire 5 présente au moins un additif qui compense une perte d’une caractéristique visuelle ou tactile originelle ou ajoute une caractéristique visuelle ou tactile supplémentaire au matériau naturel, notamment une caractéristique perdue suite à l’opération de dépôt de la ou des couches de surface 6, 6’ de protection, par exemple en vernis. Alternativement, l’au moins un additif précité peut être présent dans ladite ou lesdites couches de protection 6, 6’ en plus ou à la place de celui ou ceux présents dans ladite couche primaire 5. According to the present invention, the primary transparent adhesion layer 5, for example made of PU, has a thickness of at least 10 μm, preferably ranging from 10 μm to 40 μm, and more preferably a thickness ranging from 10 μm at 15 pm. Advantageously, said primary layer 5 has at least one additive which compensates for a loss of an original visual or tactile characteristic or adds an additional visual or tactile characteristic to the natural material, in particular a characteristic lost following the operation of depositing the or protective surface layers 6, 6 ', for example of varnish. Alternatively, the at least one aforementioned additive may be present in said one or more protective layers 6, 6 ′ in addition to or in place of that or those present in said primary layer 5.
[0029] Selon encore un autre aspect, la ou les couches de surface de protection 6, 6’ appliquées comprennent au moins une couche de laque PU solvantée transparente. [0029] According to yet another aspect, the applied protective surface layer (s) 6, 6 ′ comprises at least one layer of transparent solvent-based PU lacquer.
[0030] Avantageusement, le procédé selon l’invention est en outre caractérisé en ce que la couche ou l’ensemble des couches de surface 6, 6’ de protection, par exemple de vernis, présente une épaisseur allant de 15 pm à 300 miti, en particulier de 40 pm à 60 pm. Advantageously, the method according to the invention is further characterized in that the layer or all of the surface layers 6, 6 'of protection, for example of varnish, has a thickness ranging from 15 μm to 300 μm. , especially 40 µm to 60 µm.
[0031 ] La présente invention a également pour objet une pièce intérieure 1 de véhicule habillée grâce à la mise en oeuvre du procédé selon l’invention et un véhicule, notamment un véhicule automobile caractérisé en ce qu’il présente au moins une pièce intérieure 1 habillée grâce à la mise en oeuvre du procédé selon l’invention. The present invention also relates to an interior part 1 of a vehicle dressed thanks to the implementation of the method according to the invention and a vehicle, in particular a motor vehicle characterized in that it has at least one interior part 1 dressed thanks to the implementation of the method according to the invention.
[0032] Comme évoqué plus haut, la figure 1 montre l’ensemble des couches déposées pour former l’habillage de la pièce intérieure 1 , par exemple un élément de portière ou de tableau de bord d’une voiture de tourisme ou de sport. [0032] As mentioned above, Figure 1 shows all of the layers deposited to form the trim of the interior part 1, for example a door or dashboard element of a passenger or sports car.
[0033] Comme on peut le voir sur la photo de la figure 2, l’utilisation d’une sous- couche d’adhésion autre que de nature aqueuse ne donne pas le résultat escompté. On voit sur cet exemple la différence d’aspect sur une feuille où le matériau naturel est de l’ardoise qui a été vernie avec le même vernis de surface. Avec la sous-couche primaire de vernis aqueux, conformément à la présente invention, on obtient un aspect proche de celui de la pierre brute originelle alors qu’avec un vernis solvanté l’aspect est plus sombre, ce qui peut être souhaité dans certains cas ou au contraire un effet non recherché. [0034] Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention. As can be seen in the photo of FIG. 2, the use of an adhesion sub-layer other than of an aqueous nature does not give the expected result. We see in this example the difference in appearance on a sheet where the natural material is slate which has been varnished with the same surface varnish. With the primer undercoat of aqueous varnish, in accordance with the present invention, an appearance close to that of the original rough stone is obtained, while with a solvent-based varnish the appearance is darker, which may be desired in certain cases. or on the contrary an unwanted effect. Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims

Revendications Claims
[Revendication 1 ] Procédé d’habillage de pièces intérieures (1 ) de véhicules, en particulier de véhicules automobiles par une fine couche (4) de matériau naturel, en particulier un matériau inorganique tel que la pierre, du verre ou de la céramique ou un matériau organique comme le bois consistant à habiller la pièce intérieure (1 ) de véhicule en la revêtant d’une couche optionnelle d’adhésion (2) sur laquelle on applique une couche de support (3) de la fine couche (4) de matériau naturel puis ladite fine couche (4) de matériau naturel proprement dite, caractérisé en ce qu’on applique sur ladite fine couche (4) de matériau naturel une couche primaire d’adhésion (5) en polyuréthane (PU) à base aqueuse transparente avant de recouvrir le tout d’au moins une couche de surface (6, 6’) transparente de protection, en particulier d’une ou plusieurs couches de surface (6, 6’) transparentes en vernis. [Claim 1] A method of dressing interior parts (1) of vehicles, in particular of motor vehicles, with a thin layer (4) of natural material, in particular an inorganic material such as stone, glass or ceramic or an organic material such as wood consisting in dressing the interior part (1) of the vehicle by coating it with an optional adhesion layer (2) on which is applied a support layer (3) of the thin layer (4) of natural material then said thin layer (4) of natural material proper, characterized in that a transparent water-based polyurethane (PU) primary adhesion layer (5) is applied to said thin layer (4) of natural material before covering the whole with at least one transparent protective surface layer (6, 6 '), in particular one or more transparent varnish surface layers (6, 6').
[Revendication 2] Procédé selon la revendication 1 caractérisé en ce que la pièce intérieure (1 ) de véhicule est réalisée en une matière synthétique, telle qu’une matière plastique de type polycarbonate (PC), en PC-ABS, en polypropylène (PP) ou en polyuréthane et propylène (PU+PP), notamment en PU+PP chargé de fibres de verre et/ou de fibres naturelles. [Claim 2] A method according to claim 1 characterized in that the interior part (1) of the vehicle is made of a synthetic material, such as a plastic material such as polycarbonate (PC), PC-ABS, polypropylene (PP ) or in polyurethane and propylene (PU + PP), in particular in PU + PP filled with glass fibers and / or natural fibers.
[Revendication 3] Procédé selon la revendication 1 ou 2, caractérisé en ce que la couche d’adhésion (2) est réalisée en colle PUR (polyuréthane) en base aqueuse. [Claim 3] Method according to claim 1 or 2, characterized in that the adhesion layer (2) is made of PUR (polyurethane) adhesive in aqueous base.
[Revendication 4] Procédé selon la revendication 1 ou 2, caractérisé en ce que la couche d’adhésion (2) est réalisée en colle ne contenant pas de PUR (polyuréthane) et en une base solvantée non-aqueuse. [Claim 4] A method according to claim 1 or 2, characterized in that the adhesion layer (2) is made of an adhesive not containing PUR (polyurethane) and of a non-aqueous solvent base.
[Revendication 5] Procédé selon l’une des revendications précédentes, caractérisé en ce que la couche de support (3) de la fine couche (4) de matériau naturel est réalisée dans une matière textile tissée ou non-tissée et présente une épaisseur allant de 100 pm à 5 mm. [Claim 5] Method according to one of the preceding claims, characterized in that the support layer (3) of the thin layer (4) of natural material is made of a woven or non-woven textile material and has a thickness ranging from 100 µm to 5 mm.
[Revendication 6] Procédé selon la revendication précédente, caractérisé en ce que la couche de support (3) de la fine couche (4) de matériau naturel est réalisée dans une matière textile tissée ou non-tissée recouverte d’une résine. [Claim 6] Method according to the preceding claim, characterized in that the support layer (3) of the thin layer (4) of natural material is made of a woven or non-woven textile material covered with a resin.
[Revendication 7] Procédé selon l’une des revendications précédentes, caractérisé en ce que la fine couche (4) de matériau naturel est réalisée en pierre, verre, céramique ou bois et présente une épaisseur allant de 50 pm à 2 mm. [Claim 7] Method according to one of the preceding claims, characterized in that the thin layer (4) of natural material is made of stone, glass, ceramic or wood and has a thickness ranging from 50 µm to 2 mm.
[Revendication 8] Procédé selon l’une des revendications précédentes, caractérisé en ce que la couche primaire (5) d’adhésion transparente en PU présente une épaisseur de 10 pm minimum. [Claim 8] Method according to one of the preceding claims, characterized in that the primer layer (5) of transparent PU adhesion has a thickness of at least 10 µm.
[Revendication 9] Procédé selon l’une quelconque des revendications précédentes, caractérisé en ce que ladite couche primaire (5) présente au moins un additif qui compense une perte d’une caractéristique visuelle ou tactile originelle ou ajoute une caractéristique visuelle ou tactile supplémentaire au matériau naturel, notamment une caractéristique perdue suite à l’opération de dépôt de la ou des couches de surface (6, 6’), notamment en vernis. [Claim 9] A method according to any one of the preceding claims, characterized in that said primer layer (5) has at least one additive which compensates for a loss of an original visual or tactile characteristic or adds an additional visual or tactile characteristic to the. natural material, in particular a characteristic lost following the operation of depositing the surface layer or layers (6, 6 '), in particular in varnish.
[Revendication 10] Procédé selon la revendication 9 ou selon l’une quelconque des revendications précédentes, caractérisé en ce que la ou les couches de surface (6, 6’) présentent en plus ou à la place des additifs de la couche primaire (5) au moins un additif qui compense une perte d’une caractéristique visuelle ou tactile originelle ou ajoute une caractéristique visuelle ou tactile supplémentaire au matériau naturel, notamment une caractéristique perdue suite à l’opération de dépôt de la ou des couches de surface (6, 6’), notamment en vernis. [Claim 10] A method according to claim 9 or according to any one of the preceding claims, characterized in that the surface layer (s) (6, 6 ') present in addition or instead of additives of the primer layer (5 ) at least one additive which compensates for a loss of an original visual or tactile characteristic or adds an additional visual or tactile characteristic to the natural material, in particular a characteristic lost following the operation of depositing the surface layer (s) (6, 6 '), especially in varnish.
[Revendication 1 1] Procédé selon l’une quelconque des revendications précédentes, caractérisé en ce que la ou les couches de surface de protection (6, 6’) appliquées comprennent au moins une couche de laque PU solvantée transparente. [Claim 1 1] A method according to any one of the preceding claims, characterized in that the protective surface layer (s) (6, 6 ’) applied comprise at least one layer of transparent solvent-based PU lacquer.
[Revendication 12] Procédé selon l’une quelconque des revendications précédentes caractérisé en ce que la couche ou l’ensemble des couches de surface de (6, 6’) de protection présente une épaisseur allant de 15 pm à 300 miti, en particulier de 40 pm à 60 pm. [Claim 12] A method according to any one of the preceding claims characterized in that the layer or all of the surface layers of (6, 6 ') of protection has a thickness ranging from 15 µm to 300 µm, in particular of 40 pm to 60 pm.
[Revendication 13] Pièce intérieure habillée (1 ), notamment de véhicule, en particulier de véhicule automobile, caractérisée en ce qu’elle est obtenue par la mise en oeuvre du procédé selon l’une des revendications 1 à 12. [Revendication 14] Véhicule, notamment véhicule automobile caractérisé en ce qu’il présente au moins une pièce intérieure (1 ) habillée grâce à la mise en oeuvre du procédé selon l’une quelconque des revendications 1 à 12. [Claim 13] Interior trimmed part (1), in particular of a vehicle, in particular of a motor vehicle, characterized in that it is obtained by implementing the method according to one of claims 1 to 12. [Claim 14] Vehicle, in particular a motor vehicle, characterized in that it has at least one interior part (1) dressed by implementing the method according to any one of claims 1 to 12.
PCT/EP2020/062436 2019-05-21 2020-05-05 Process for lining internal components of vehicles, associated lined components and vehicles WO2020233979A1 (en)

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