EP1656216A1 - Wooden material panel comprising a soft plastic layer - Google Patents

Wooden material panel comprising a soft plastic layer

Info

Publication number
EP1656216A1
EP1656216A1 EP04764333A EP04764333A EP1656216A1 EP 1656216 A1 EP1656216 A1 EP 1656216A1 EP 04764333 A EP04764333 A EP 04764333A EP 04764333 A EP04764333 A EP 04764333A EP 1656216 A1 EP1656216 A1 EP 1656216A1
Authority
EP
European Patent Office
Prior art keywords
layer
plastic
wood
panel
advantageously
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.)
Ceased
Application number
EP04764333A
Other languages
German (de)
French (fr)
Inventor
Roger Braun
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.)
Kronotec AG
Original Assignee
Kronotec 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
Priority to DE10338854 priority Critical
Priority to DE102004031547A priority patent/DE102004031547A1/en
Application filed by Kronotec AG filed Critical Kronotec AG
Priority to PCT/EP2004/009350 priority patent/WO2005018833A1/en
Publication of EP1656216A1 publication Critical patent/EP1656216A1/en
Ceased legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/18Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0867Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having acoustic absorption means on the visible surface
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/10Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of wood or with an outer layer of wood
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/18Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/181Insulating layers integrally formed with the flooring or the flooring elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/28Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50Multilayers
    • B05D7/56Three layers or more
    • B05D7/57Three layers or more the last layer being a clear coat
    • B05D7/576Three layers or more the last layer being a clear coat each layer being cured, at least partially, separately
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring

Abstract

The invention relates to a wooden material panel, in particular a wall, ceiling or floor panel, comprising a surface coating that is applied in at least some sections. Said coating contains at least one layer of plastic with a Shore hardness A of up to 90, preferably up to 80, in particular up to 65, preferably up to 50, especially between 20 and 60 and more specifically between 30 and 40. The invention also relates to a method for producing said wooden material panel.

Description

 Wood-based panel with a soft plastic layer

The invention relates to a wood-based panel, in particular wall, ceiling or floor panels, with a surface coating.

Wood-based panels, which are made of chipboard, high or medium density fiberboard or the like based on wood, are used in many ways. They are used as window sills or kitchen worktops, but above all as panels for furniture parts, e.g. B. fronts, but also used as wall, ceiling or floor panels. The edges are often designed with a tongue and groove profile.

Such plates usually have a decorative surface that is covered with a plastic. The plastic is intended to ensure a particularly high resistance to mechanical, thermal and / or chemical stresses. Abrasion resistance, resistance to embers and / or household cleaners as well as water or steam are essential properties that must be fulfilled.

While known wood-based panels easily withstand the λ'Organic stresses and are versatile in use with the decoratively designed surfaces, they have disadvantages with regard to acoustic properties, which can prove to be decisive when making a purchase decision. It has proven to be particularly disadvantageous, particularly in the case of floor, wall and ceiling panels, that the panels or panels have a very unfavorable effect on the room and impact sound. The noise level when walking over such surfaces (typically: laminate floors) is very high and is perceived as unpleasant. The lack of soundproofing ability of these wall or ceiling panels or panels makes rooms uncomfortably loud.

It is therefore an object of the invention to offer a resistant wood-based panel, the room acoustic properties of which can be specifically adjusted according to specifications.

The level of sound absorption, including impact sound absorption, should be adjustable depending on the later use and purpose of the wood-based panel, right down to the wall

BESTATIGUNGSKOPIE or ceiling panels or floors, which can be described as "noiseless" and which therefore dampen the vast majority of the noises that are generated, for example by steps, speech and / or media.

In addition to the level of sound absorption, another room acoustic property should be adjustable. The soundscape of natural substances should be able to be reproduced in a targeted manner within the scope of the invention. The background noise, the z. B. arises when walking on natural stone, cork or parquet, should be selectively adjustable.

The above object is achieved by providing a wood-based panel, in particular a wall, ceiling or floor panel with a surface coating applied at least in sections, which has at least one layer of plastic, the Shore hardness A of which is up to 90, preferably up to 80, particularly preferably up to 65, advantageously up to 50. Layers of plastic with a Shore A hardness of 20 to 60, preferably 30 to 40, have proven to be particularly suitable. This layer is referred to below as the "layer of plastic with low hardness". The Shore hardness is tested in accordance with DIN 53505 and makes a statement about the hardness of test specimens and products made of elastomers and plastics. It is determined by the penetration of a defined test specimen with a defined spring force into the surface of a test specimen, here a wood-based panel with a surface made of plastic. Fabrics whose Shore hardness is specified in class A are particularly soft substances. Harder substances are specified in Shore hardness classes B, C and D.

Known wood-based panels are provided with the hardest possible surface, since hard plastic surfaces are particularly resistant to the stresses mentioned. However, the hardness of the surface is not always desirable, either because the surface feels cold or smooth, or because the coating turns out to be brittle when the surface is subsequently processed. Since the hardness of the surface enables particularly good sound reflection or conduction of impact sound, the poor sound insulation behavior is significantly influenced by this hardness.

The layer of plastic of low hardness according to the invention is to a compared to known coatings, e.g. B. lacquer layers, very soft layer. A layer of plastic with a Shore A hardness of 90 or less initially appears to the person skilled in the art as not being sufficiently resilient for the production of a resistant wood-based panel, but tests have shown that even surfaces with a much lower hardness meet the aforementioned conditions with regard to the resistance of the coated wood-based panel against mechanical, thermal and / or chemical loads.

The resistance to the action of acids and / or alkalis, water, oils and the like as well as the abrasion resistance, especially under the action of chair castors, make it possible to use the wood-based panel coated according to the invention in the same wide range of applications for which the previously known boards with hard surface coatings are suitable. The significantly improved sound insulation behavior of the "soft" surface is particularly noticeable under mechanical stress.

Even "soft" plastic surfaces with low hardness are lightfast or UV-resistant. The surface coatings are usually transparent so that decorations that are applied to the wood-based panels are not covered. Surprisingly, it has been found that the depth effect of the print is improved by a surface which is provided with a “soft” plastic coating. This results in better options for decorative surface design.

It has also proven to be advantageous that a surface with a lower Shore hardness, which feels "softer", enables significantly better impact sound and room sound insulation. This is particularly important when using such wood-based panels with surfaces of lower hardness than floor panels, typically: laminate floors.

The appearance of the surface according to the invention is not only softer, it is also warmer and is subjectively perceived as more pleasant. This parameter is also of great importance for the use of wood-based panels. In rooms that are walked on barefoot or in which people frequently sit on the floor (children's and youth rooms, gymnasiums, gymnastics and therapy rooms or the like) is a pleasant, cozy feeling of space of special value.

The at least one layer of plastic with low hardness is preferably made of thermoplastic or of a mixture of plastics which contains at least one thermoplastic. Thermoplastic plastics are easy to process and have a Shore A hardness in the above range.

Alternatively, the layer of plastic made of a polyolefin, a reactive polyolefin (POR), a polyurethane (PU), for example a polymer

Diphenylmethane diisocyanate (PMDI) an ethylene vinyl acetate (EVA), an epoxy or a polyester. These raw materials are preferably used in powder form or as hot melts. The layer can also be produced from a mixture of the aforementioned substances or from a mixture of plastics using at least one of the aforementioned plastics. Numerous known polymers and / or polymer mixtures are known to the person skilled in the art, which are basically suitable for coating the surfaces of wood-based panels. The inventive selection of the plastic according to the achievable surface hardness in the range below 90 Shore hardness A, preferably under a Shore hardness Avon 80, particularly preferably under a Shore hardness A of 65, very particularly preferably under a Shore hardness A of 50 , advantageously in the range from 20 to 60, preferably from 30 to 40, can be determined by simple coating and loading tests. The properties of plastics can be adjusted very precisely as a pure product and in a mixture, so that the desired Shore A hardness but also other properties such as transparency, processing conditions, curing times, compatibility with other materials and the like can be set in a targeted manner.

According to a further preferred embodiment of the invention, the layer of plastic with low hardness can be made of a plastic or a mixture of plastics which are transparent, filled, in particular mineral or organic filled and / or colored. This means that the surface of the wood-based panel - insofar as it is coated - can be designed in a variety of ways. Even layer thicknesses of 20 μm for the layer of plastic with low hardness are sufficient to achieve good resistance to a wide variety of stresses even with softer layers. The "soft" plastic coatings can be applied using the same application methods as known plastic coatings. According to the invention, the thickness of the layer of plastic is up to 300 μm, preferably up to 40 μm, particularly preferably up to 70 μm, advantageously up to 100 μm, particularly advantageously up to 150 μm, in particular up to 250 μm.

According to an advantageous development of the invention, the at least one layer of plastic with low hardness is part of a multilayer surface coating on a surface of the wood-based panel. A wood-based panel usually has two main surfaces, front and back. The side edges are also part of the surface, but it is not necessary for numerous uses to provide the side edges with the coating according to the invention. In connection with this invention, the term surface always means front and / or back without therefore excluding the side edges. According to the prior art, surface coatings for wood-based panels are common, which are composed of several layers. Mostly they are layers made of different materials. This layer structure can also be used advantageously in the context of the present invention. According to the invention, the at least one layer of plastic can be part of a multilayer surface coating of the wood-based panel.

The layer of plastic according to the invention can be integrated as an external or non-external layer in the surface coating of the wood-based panel. It has been found that to set the room acoustic parameters, it is not necessary to arrange the layer of plastic with a low Shore A hardness on the outside. The advantageous effect of this invention is also achieved if the layer of plastic is applied, for example, between the application of printing ink and the outer layer of lacquer.

The wood-based panel according to the invention can be further improved in that at least two layers of plastic with a Shore hardness A below 90, preferably with a Shore hardness A below 50, are part of the surface coating. The at least two layers can either be arranged on the same side of the wood-based panel or on different sides, e.g. B. on the front and on the back of the wood-based panel, that is, on the main surfaces of the wood-based panel. If two layers of plastic with low hardness are applied to one and the same surface of the wood-based panel, they can be applied directly to one another. This is e.g. B. useful when thin layers of plastic are easier to apply or other processing advantages are given. If desired, one or more layers of another material can also be arranged between the at least two layers of plastic of low hardness. It can be z. B. color layers, lacquer layers, layers with pigments or a layer of a material with a different Shore hardness A. Such a multilayer structure of the surface coating proves to be particularly advantageous if the room acoustic effect of natural materials is to be imitated.

In the context of the invention, it proves to be particularly advantageous if, in the case of a multilayer surface coating, the at least one layer of the plastic adjoins a layer of synthetic resin. The synthetic resin layers include above all lacquer layers which have a much harder Shore hardness A than the plastic layer according to the invention. Such layers of synthetic resin can be arranged above or below the layer of plastic. Even if the layer of plastic is not arranged on the outside, its room acoustic effect is largely retained and is not covered by the layer of synthetic resin.

Likewise, the layer of plastic of low hardness can adjoin a layer of paint or pigments. Here too, the layer sequence of the surface coating between the surface of the wood-based panel and the outermost layer of the surface coating can be freely selected in coordination with the desired acoustical properties. So z. B. a single or multi-layer paint application can be applied to the surface of the wood-based panel to which a layer of plastic of low hardness is applied. The layer of plastic is then preferably transparent so as not to hide the paint application. If the layer of low hardness plastic does not adhere to the surface on which it is to be applied, the surface can be treated with an adhesive beforehand. Within the scope of the embodiment described above, z. B. an adhesion promoter can be applied to the paint application before the layer of plastic of low hardness is applied.

If the surface has extraordinary requirements with regard to e.g. B. the abrasion, so usual additives such as corundum or other particles can be incorporated into the surfaces of the invention.

The layer of low hardness plastic is also elastic. It therefore has restoring forces that ensure that deformations caused by acting forces at least largely recede after these forces have been reduced. This is particularly advantageous if point loads occur which lead to cracks or breaks in the coating in the case of harder surface coatings. Surprisingly, this elasticity is not lost if a harder surface coating is applied to the layer of low hardness plastic. Elimination of elastic deformations does not occur suddenly, but in hours or days, depending on the type of plastic selected, which is of low hardness, and the type of load. The positive effects described can be measured despite the mostly small layer thicknesses of approx. 100 μm to approx. 300 μm.

The invention further relates to a process for the production of wood-based panels with a surface coating applied at least in sections, in which at least one layer of plastic is applied, the Shore hardness A of which is up to 90, preferably up to 80, particularly preferably up to 65, advantageously up to 50, particularly advantageously 20 to 60, preferably 30 to 40.

According to an advantageous development of the invention, the layer of plastic is applied in a thickness between 20 μm and 300 μm, preferably up to 40 μm, particularly preferably up to 70 μm, advantageously up to 100 μm, particularly advantageously up to 150 μm, in particular up to to 250 μm. Despite the relatively thin layer thickness there is a clear room acoustic effect, in particular improved sound insulation. Depending on the selection of the plastic of low hardness and the arrangement of the at least one layer of plastic of low hardness, the sound-absorbing effect of the layer applied according to the invention can be optimized in simple tests according to the respective requirements. Alternatively, the sound effect of different natural substances can be simulated in the same way.

It has also proven to be advantageous that the layer of plastic according to the invention is elastic, in particular after the reduction of a mechanical load which causes a deformation, that is to say, e.g. B. after an impact or pressure load, resumes the original shape. Such a tough-elastic layer is impact-resistant, abrasion-resistant and scratch-resistant. According to a preferred embodiment, a residual impression remains after a punctiform or sheet-like loading, which is between 0.5 and 4%, preferably 0.5 to 2% of the impression under loading, measured according to the conditions of DIN-EN 433.

In terms of process technology, it is advantageous if the layer of plastic of low hardness is applied by rolling. Rolling allows the application of layers within a wide range of different layer thicknesses. Rollers also ensure that the layer is applied evenly over the entire surface of the wood-based panel.

It proves to be advantageous if the layer of plastic is applied at a temperature of more than 80 ° C., preferably more than 120 ° C., particularly preferably more than 160 ° C. In this temperature range, suitable plastics can be processed particularly well, e.g. B. apply in thin layers, dry quickly or react and apply at high processing speeds.

Details of the invention are explained below using an exemplary embodiment.

A commercially available primer is first applied to a hardboard to smooth the surface. Two layers of paint are applied to the primer to create a colored decor. Acrylic paints are used as paints. Each of the previously applied layers has hardened. A layer of plastic with a Shore A hardness of 55 is now applied to the last coat of lacquer applied. The following material mix is only mentioned as an example of the possible composition of such a layer:

Acrylate dispersions: 48% by weight (% by weight), pigments (titanium dioxide or others) 8% by weight, barium sulfate 17% by weight, kaolin 2% by weight, insulating powder 15% by weight, additives (e.g. thickeners , Stabilizers for the dispersions etc.) 3% by weight and water 7% by weight. The component of the material mixture referred to here as insulating powder is organic particles which are used as fillers and which are selected as a function of the desired Shore hardness A.

This plastic layer is applied with a layer thickness of 50 μm at a temperature of 150 ° C. At the specified application temperature, the plastic layer hardens in a short time without the need for special drying measures. Finally, two layers of UV-curable varnish are applied and cured.

Alternatively, the layer can consist of a thermoplastic material. A PU elastomer is proposed. The advantage of this material is the 3-dimensional restoring forces resulting from the material structure. Such a material can have a Shore hardness Avon 35.

The processing takes place in such a way that the layer of PU elastomer is applied at a temperature of 170 ° C. with a layer thickness of 120 μm. Then the further paint build-up to the finished panels takes place.

Claims

 1. Wood-based panel, in particular wall, ceiling or floor panel, with a surface coating applied at least in sections, which has at least one layer of plastic whose Shore hardness A up to go, preferably up to 80, particularly preferably up to 65, advantageous up to 50, particularly advantageously from 20 to 60, preferably from 30 to 40.
2. Wood-based panel according to claim 1 with at least one layer of plastic, wherein a thermoplastic or a mixture of plastics containing at least one thermoplastic is used as the plastic.
3. Wood-based panel according to claim 1 with at least one layer of plastic, made of a polyolefin, a reactive polyolefin (POR), a polyurethane (PU), an ethylene vinyl acetate (EVA), polyester or an epoxy, a mixture of the aforementioned plastics or a mixture of plastics containing at least one of the aforementioned plastics.
  4. Wood-based panel according to claim 1 with at least one layer of a plastic or a mixture of plastics which is transparent, filled, in particular mineral or organic filled and / or colored.
5. Wood-based panel according to claim 1, with at least one layer of plastic, the thickness of this layer being between 20 µm and 300 µm, preferably up to 40 µm, particularly preferably up to 70 µm, advantageously up to 100 µm, particularly advantageously up to 150 µm, especially up to 250 µm.
6. Wood-based panel according to claim 1, characterized in that the at least one layer of plastic is part of a multi-layer surface coating on a surface of the wood-based panel.  <Desc / Clms Page number 11>  
7. Wood-based panel according to claim 6, characterized in that the at least one layer of plastic is an outside or a non-outside layer.
8. Wood-based panel according to claim 1, characterized in that at least two layers of plastic are applied to the wood-based panel.
9. Wood material board according to claim 8, characterized in that at least one layer of plastic is applied to each main surface of the wood material board.
  10. Wood-based panel according to claim 1, characterized in that at least two layers of plastic are applied to at least one main surface of the wood-based panel.
  11. Wood-based panel according to claim 10, characterized in that at least one layer of another material, in particular a material with a different Shore hardness A, is arranged between the at least two layers of plastic.
  12. Wood-based panel according to claim 6, characterized in that the at least one layer of plastic adjoins a layer of synthetic resin, in particular a lacquer layer.
  13. Wood-based panel according to claim 6, characterized in that the at least one layer of plastic is adjacent to a layer of paint.
  14. Wood-based panel according to claim 6, characterized in that the layer of plastic is applied to a layer of an adhesion promoter or that a layer of an adhesion promoter is applied to the layer of plastic.
  15. Wood-based panel according to claim 1, characterized in that the layer of plastic is elastic, in particular after the reduction of a mechanical load which causes deformation, assumes the original shape again.  <Desc / Clms Page number 12>  
16. A method for producing a wood-based panel with a surface coating, in particular wall, ceiling or floor panels, wherein at least one layer of plastic with a Shore hardness A to go, preferably up to 80, particularly preferably up to 65, advantageously up to 50, particularly advantageously from 20 to 60, preferably from 30 to 40, is applied to the surface of the wood-based panel.
  17. The method according to claim 15, characterized in that the layer of plastic is applied in a thickness between 25 µm and 300 µm, preferably up to 40 µm, particularly preferably up to 70 µm, advantageously up to 100 µm, particularly advantageously up to 150 µm, especially up to 250 µm.
  18. The method according to claim 15, characterized in that the layer of plastic is applied by means of rollers.
  19. The method according to claim 15, characterized in that the layer of plastic is applied at a temperature of more than 80 C, preferably above 120 C, particularly preferably above 160 C.
EP04764333A 2003-08-20 2004-08-20 Wooden material panel comprising a soft plastic layer Ceased EP1656216A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10338854 2003-08-20
DE102004031547A DE102004031547A1 (en) 2003-08-20 2004-06-29 Wood-based panel with a surface coating and method of making the same
PCT/EP2004/009350 WO2005018833A1 (en) 2003-08-20 2004-08-20 Wooden material panel comprising a soft plastic layer

Publications (1)

Publication Number Publication Date
EP1656216A1 true EP1656216A1 (en) 2006-05-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04764333A Ceased EP1656216A1 (en) 2003-08-20 2004-08-20 Wooden material panel comprising a soft plastic layer

Country Status (5)

Country Link
US (1) US20070294968A1 (en)
EP (1) EP1656216A1 (en)
CA (1) CA2535607A1 (en)
MX (1) MXPA06001958A (en)
WO (1) WO2005018833A1 (en)

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US20070294968A1 (en) 2007-12-27
CA2535607A1 (en) 2005-03-03

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