US20130183506A1 - Panel comprising a polymeric composite layer and a reinforcement layer - Google Patents
Panel comprising a polymeric composite layer and a reinforcement layer Download PDFInfo
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- US20130183506A1 US20130183506A1 US13/807,434 US201113807434A US2013183506A1 US 20130183506 A1 US20130183506 A1 US 20130183506A1 US 201113807434 A US201113807434 A US 201113807434A US 2013183506 A1 US2013183506 A1 US 2013183506A1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
- E04C2/22—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics reinforced
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- 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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
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- 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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood 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
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- 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
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/10—Next to a fibrous or filamentary layer
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- 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
- B32B5/028—Net structure, e.g. spaced apart filaments bonded at the crossing points
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- 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
- B32B5/12—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 characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
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- 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
- B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/30—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being formed of particles, e.g. chips, granules, powder
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
- E04C2/246—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings 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
- E04F13/0875—Coverings 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 a basic insulating layer and at least one covering layer
- E04F13/0878—Coverings 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 a basic insulating layer and at least one covering layer the basic insulating layer comprising mutual alignment or interlocking means
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings 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
- E04F13/16—Coverings 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 fibres or chips, e.g. bonded with synthetic resins, or with an outer layer of fibres or chips
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/102—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of fibrous or chipped materials, e.g. bonded with synthetic resins
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
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- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
- B32B2260/023—Two or more layers
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- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/028—Paper layer
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- 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
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
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- 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
- B32B2471/00—Floor coverings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31971—Of carbohydrate
- Y10T428/31989—Of wood
Abstract
A panel comprises a polymeric composite layer and at least a reinforcement layer for reinforcing the polymeric composite layer at least in the plane of the panel. The reinforcement layer is made of a material which is different from that of the polymeric composite layer.
Description
- This application is a Section 371 National Stage Application of International Application PCT/EP2011/060991 filed Jun. 30, 2011 and published as WO 2012/001091 A1 in English.
- The discussion below is merely provided for general background information and is not intended to be used as an aid in determining the scope of the claimed subject matter.
- Aspects of the present invention relate to a panel, in particular a floor panel which comprises a polymeric composite layer.
- A panel having a layer of a polymeric composite is known from WO 2008/122668. In this case the polymeric composite is WPC, which is a composite of polymeric material and a natural fiber for example from any wood source. Due to the presence of polymers the dimensions of the known panels depend on temperature more strongly than for example wooden floor boards or panels mainly made of wood-based material, which limits the applicability of panels including a WPC layer.
- This Summary and the Abstract herein are provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary and the Abstract are not intended to identify key features or essential features of the claimed subject matter, nor are they intended to be used as an aid in determining the scope of the claimed subject matter. The claimed subject matter is not limited to implementations that solve any or all disadvantages noted in the Background.
- An aspect of the present invention is to provide a panel including a polymeric composite layer which is applicable in changing ambient conditions.
- For this purpose the panel comprises a reinforcement layer for reinforcing the polymeric composite layer at least in the plane of the panel, which reinforcement layer is made of a material which is different from that of the polymeric composite layer. The reinforcement layer may also reinforce the polymeric composite layer in a direction extending transversely to the plane of the panel.
- An advantage of the panel is that deformation of the polymeric composite layer in the plane of the panel is minimized. In other words, the sensitivity of the dimensions of the panel to ambient conditions is minimized. This means that the panel can be applied at locations where ambient conditions change, for example in case of floor panels that are connected to each other to form a flooring on a floor having a floor heating system. Furthermore, in case of floor panels that are mutually connected to form a flooring, the expansion clearance between the wall and an adjacent floor panel can be minimized. In practice, the reinforcement layer is thinner than the polymeric composite layer, for example less than 0.4 mm but a greater thickness is possible. It is noted that the reinforcement layer may be a sheet or plate; the layer may be self-supporting and/or made of one piece.
- The polymeric composite may be a mixture of one or more polymers and non-polymeric or partly polymeric material. Examples of non-polymeric or partly polymeric materials are chalk and carpet waste, jute, styrene butadiene (latex), but a lot of alternative materials are conceivable. The polymeric composite may further contain a coupling agent to improve the material cohesion. Alternative additives are elastomers or materials having a high absorption capacity of fillers. This may also improve characteristics like UV resistance, humidity resistance and bending strength. The fillers may be fibers, powders or the like. In general, the polymeric composite layer may be a composite of a polymer and a non-polymer composite substance. The composite substance may be natural or non-natural fibers, particles or the like. In a practical embodiment the polymeric composite layer is a WPC layer made of wood plastic composite (WPC) and the reinforcement layer is a non-WPC reinforcement layer.
- In one embodiment the reinforcement layer is incorporated within the polymeric composite layer since this creates an efficient reinforcement of the polymeric composite layer. In terms of manufacturing such an embodiment the reinforcement layer can easily be integrated in a known pressing process for manufacturing a polymeric composite panel such that the reinforcement layer is embedded within the polymeric composite layer. Such a process is described in WO 2008/122668.
- The reinforcement layer may have an open structure. The advantage is that upon pressing melted granulate layers together whereas the reinforcement layer is sandwiched between the layers a strong bond between the melted granulate layers at open areas of the open structure can be achieved. As a result the reinforcement layer is fully integrated in the polymeric composite layer without significantly weakening the panel at the reinforcement layer in a direction perpendicular to the plane of the panel. Thus, the resulting polymeric composite layer is continuous through open areas of the open structure, i.e. in a direction perpendicular to the plane of the panel.
- The reinforcement layer may comprise longitudinal filaments and transversal filaments extending in transverse direction with respect to the longitudinal filaments. The filaments may be oriented perpendicularly with respect to each other but this is not necessary. The mutual distance of at least one of the longitudinal filaments and transversal filaments may vary within the reinforcement layer, which provides the opportunity to create a stronger reinforcement at predefined areas of the panel. For example, the mutual distance may vary between 1-5 filaments per cm. It is advantageous when the mutual distance is adapted to the size of the granulate of which the polymeric composite layer is made; in particular if the granulate is not entirely melted it can still pass through the reinforcement layer upon pressing. The filaments may be made of glass fiber, or fibers of polyester high tenacity, polyester textile, cellulose, aramid, PEN, Nomex or other materials that are dimensionally insensitive to changing ambient conditions such as temperature changes.
- It is noted that the filaments may be fixed to each other by a fixing mechanism, for example glue. Both the filaments and the fixing mechanism will be selected such that they are compatible with polymeric composite and in one embodiment form a strong bond therewith. Additionally, binders may be added to the polymeric composite and/or to the reinforcement layers, such as acrylate, ethylenvinyl acetate, polyurethane, polyvinyl alcohol, polyvinyl acetate, polyvinylchloride, styrene butadiene or the like.
- The panel may comprise at least another reinforcement layer, which, in one embodiment, is located at a distance from the reinforcement layer. A plurality of reinforcement layers is possible, as well. The reinforcement layers may be located within the polymeric composite layer.
- The panel may be a floor panel, ceiling panel, wall panel, or the like.
- Aspects of the invention will hereafter be elucidated with reference to very schematic drawings showing an embodiment of the invention by way of example.
-
FIG. 1 is an enlarged sectional view of an embodiment of a panel. -
FIG. 2 is a series of very schematic top views of different types of reinforcement layers, being applicable in the panel according toFIG. 1 . -
FIG. 3 is a series of perspective views of different types of reinforcement layers, being applicable in the panel according toFIG. 1 . -
FIG. 4 is a very schematic view of an apparatus for manufacturing a panel ofFIG. 1 . -
FIG. 1 shows a cross-sectional view of an embodiment of a floor panel 1. The floor panel 1 includes aWPC layer 2 made of wood plastic composite (WPC) granulate and areinforcement layer 3. Thereinforcement layer 3 is thinner than theWPC layer 2 and is intended to minimize dimensional changes of theWPC layer 2 in the plane of the panel 1. In this embodiment thereinforcement layer 3 is incorporated within theWPC layer 2 such that portions of theWPC layer 2 extend at both sides of thereinforcement layer 3. For stability reasons it is preferred that the thicknesses of these portions of theWPC layer 2 are substantially equal. It is noted that instead of WPC an alternative polymeric composite may be applied. - Furthermore, the floor panel 1 according to
FIG. 1 includes a top laminate on theWPC layer 2. In this example, the top laminate is a high pressure laminate construction comprising at least a printeddecorative layer 4 and an impregnatedprotective overlay 5 pressed together with heat and pressure to become one single layer due to the impregnation material which, in one embodiment, is a resin such as melamine resin. In a further embodiment, the melamine resin is mixed with urea formaldehyde to obtain advantageous properties such as minimized shrinkage and reduced cloudiness. In one embodiment, theoverlay paper 5 is a high abrasive overlay which can have aluminium oxide or other abrasive resistant hard particles embedded in the surface of the paper. It is noted that a different layer type can be provided on the WPC layer, for example a polymeric film having a decoration pattern, which is printed on the film. The polymeric film may be melted to the WPC layer. - The top laminate or top layer as described above consists of one or more paper layers, but also one or more wood veneer layers, vulcanized cellulose layers or other layers suitable as top layer are conceivable.
- The design and overall upper layers can be textured such as embossed in register with the design of the printed decorative layer in order to even better imitate natural material, such as stone, brick, ceramic, wood, marble or the like.
- Preferably but not necessarily a
backing layer 6 is provided below theWPC layer 2 and is fixed to the underside of theWPC layer 2. Thebacking layer 6 can be used as a balancing layer and it may also have moisture resisting properties. Furthermore, apaper layer 7 may be provided between the WPC layer and the top laminate. - At least on two opposite sides of the floor panel 1 and in one embodiment on all sides are formed
coupling mechanisms 8 to couple adjacent panels 1 together. In one embodiment, thecoupling mechanisms 8 also include a mechanical locking system to lock the adjacent floor panels 1 not only in a direction perpendicular to the surface of the panels, but also in a direction parallel to the surface and perpendicular to the respective side of the floor panel 1. However the invention is not limited thereto at all. AlthoughFIG. 1 shows a tongue and a groove ascoupling mechanisms 8, all coupling systems, including the use of adhesives is encompassed by the invention. - In an advantageous embodiment the
reinforcement layer 3 has an open structure, since this allows the portions of theWPC layer 2 at both sides of thereinforcement layer 3 to contact each other during manufacturing, hence creating an integral structure of theWPC layer 2 and thereinforcement layer 3.FIG. 2 shows several examples ofreinforcement layers 3 including an open structure. The reinforcement layers 3 as shown comprise parallellongitudinal filaments 9 and paralleltransversal filaments 10 which extend in a transverse direction with respect to thelongitudinal filaments 9. Thefilaments open areas 11. Although thelongitudinal filaments 9 andtransversal filaments 10 in the embodiments are perpendicularly orientated with respect to each other this is not necessary.FIG. 2 also shows that the reinforcement layers 3 may vary in respect of mutual distances of thefilaments reinforcement layer 3, and in filament dimensions. -
FIG. 3 shows examples ofdifferent reinforcement layers 3 in perspective view. Thelongitudinal filaments 9 andtransversal filaments 10 may lay on each other and may be mutually attached at intersections of thefilaments parallel filaments 9′, 9″ which are attached to each other along thefilaments 9′, 9″ and interrupted by thetransversal filaments 10 which are sandwiched between theparallel filaments 9′, 9″ at intersections of thefilaments 9′, 9″ and thetransversal filaments 10. Furthermore, thefilaments fabric 11, for example a non woven, as illustrated in the lower drawing ofFIG. 3 . -
FIG. 4 shows anapparatus 12 for manufacturing laminate sheets S which may include a plurality of panels 1 (seeFIG. 1 ) which are cut from the sheets S and are finished in a manner well known in the prior art. - The
apparatus 12 includes afirst granulate supply 13 including amechanism 14 which is adapted to supply a first layer ofgranulate 15 on a supportingconveyor belt 16. Theapparatus 12 further includes asecond granulate supply 17 including amechanism 18 which is adapted to supply a second layer ofgranulate 19. - Between the
first granulate supply 13 and thesecond granulate supply 17 thereinforcement layer 3 is supplied by unwinding it from a supply roller. The second layer ofgranulate 19 is supplied on top of thereinforcement layer 3. - The granulate is made from wood/plastic composite which is a material known in the prior art. It may include from about 30 wt % to about 95 wt % of at least one polymeric material and from about 5 wt % to about 80 wt % of at least one natural fiber or flour by weight of the WPC layer. Alternatively, the polymeric composite includes fibers, particles, flour or the like, that comprises one or more polymers itself, to which possibly one or more polymeric materials are added. The polymeric material can be one or more polymers having a polyolefin group, such as polyethylene. Other exemplary polymers include polypropylene, polyvinyl chloride, copolymer of PVC, and also other suitable thermoplastics. The polymer material to be processed can be in powder, liquid, cubed, pelletized form and/or any other form. The polymeric material can be virgin, recycled or a mixture of both. Additionally, the polymeric material may be provided with natural or non-natural additives, and/or a coupling agent to improve the material cohesion. The polymeric material can be incorporated with a blowing agent to make a cellular foam structure core.
- The natural fibers or flour have a specific moisture content, depending on the WPC-board specifications and requirements. The natural fibers can be from any wood source, cellulose source, other natural sources, or any combination thereof. Generally, any natural fiber can be used, which is from trees, plants, parts thereof and the like. The specific selection of a particular type of wood and/or wood fibers can have an influence on the properties of the final panel. The fibers of an exotic hard wood type could for example be substantially thicker and/or longer than normal fir wood. The bending stiffness will be higher if the WPC layer is made with longer fibers. Synthetic fibers may also be used to enhance mechanical properties such as flexural and tensile modules of the product. The natural fiber or flour can be virgin, recycled or a mixture of both. Furthermore the natural fibers or flour can be incorporated with a foaming agent to make a cellular foam structure core.
- The
mechanisms conveyor belt 16. Other means are of course conceivable. - The
lower conveyor belts 16 has a greater length than a second,upper conveyor belt 20 which is positioned at a distance from the first andsecond granulate supply - The upper and
lower conveyor belt conveyor belts first heating zone 21A and asecond heating zone 21B with niprollers 22 in between. These niprollers 22 are positioned below the transport part of thelower conveyer belt 16 and above the transport part of theupper conveyor 20 to effect a first pressing action on thelayers rollers 23 consisting of two pairs of upper and lower nip rollers effects a final pressing action on thelayers - As described hereinbefore the
reinforcement layer 3, in one embodiment, has an open structure such that the first and second layers of the meltedgranulate open areas 11 of thereinforcement layer 3. This avoids any weak bond between thelayers reinforcement layer 3. - The last zone within the
conveyor belts annealing zone 24 by which the sheet layers 15, 19 are cooled and brought in the final form. Theconveyor belts heating zones annealing zone 24. The platens in theupper conveyor belt 20 are movable in vertical direction, while the platens in thelower conveyor belt 16 are rigidly mounted. The movability of the platens with theupper conveyor 20 is to create a gap according to the required thickness of the sheet to be formed. In principle, the heating and cooling platens do no exert pressure on the granulate layers 15, 19 and only the calibrating niprollers - As illustrated in
FIG. 4 there is supplied a layer of paper or other absorbingmaterial first layer 15 and upper side of thesecond layer 19 ofgranulate 3 in order to be melted thereto, i.e. to be attached thereto through the melted plastic from the granulate. The paper layers 6, 7 are supplied by unwinding them from supply rollers. The paper layers 6, 7 are interposed between thefirst granulate layer 15 and thelower conveyor belt 16 and between thesecond granulate layer 19 and theupper conveyor belt 20, respectively, so that they also assist in preventing the granulate layers 15, 19 from sticking to theconveyor belts reinforcement layer 3 will be configured to that of theconveyor belts conveyor belts - Instead of
paper layer 7 it is possible to supply a polymeric sheet, for example polypropylene, PVC, polyester or the like, to the melted layer of granulate of the WPC layer. The polymeric film melts and as a result after pressing, the resulting panel obtains a smooth surface at the side where the polymeric sheet is provided and melted. This is advantageous if the WPC layer has a coarse surface due to inhomogeneous mixing of the polymer and a composite substance. Additionally, the melted polymeric layer on the WPC layer may also improve the stability and stiffness of the resulting panel and further improve the adherence of still another polymeric film thereon which is provided at a later stage such that it does not fully melt. This further polymeric film may be provided with a decoration pattern. It is also possible to provide a melted polymeric layer or film at the back side of the WPC layer, which may function as a balancing layer. - At a position downstream of the
upper conveyor belt 20 there is arranged acutting mechanism 25 to cut the continuous sheet web into separate sheets S which are then collected for further processing so as to form the floor panel 1 as shown inFIG. 1 . - An alternative method of manufacturing the panels is one in which a top laminate and optionally also a backing layer is fixed directly to the WPC layer simultaneously with the formation of the WPC layer including the
reinforcement layer 3. This means that the (paper) layers 6 and 7 are then formed by the materials for forming the top laminate and the backing layer which are directly fixed to the WPC layers by adherence thereto. The top laminate should then be of such structure that it can be supplied in rollers and can be fixed directly to the second WPC layer. The top laminate or top layer may consist of paper layers, but also one or more wood veneer layers or vulcanized cellulose layers are conceivable according to the present invention as long as they withstand the heat during pressing. In a further alternative embodiment, the top laminate can be left out and the decor can be printed directly on the WPC material. As an alternative or additionally, the raw WPC material can be embossed and/or chafed/sanded in a particulate pattern to imitate natural materials such as wood or stone. - From the foregoing, it will be clear that aspects of the invention provide a panel of which the dimensions are stable despite of varying ambient conditions.
- The invention is not limited to the embodiment shown in the drawings and described hereinbefore, which may be varied in different manners within the scope of the claims and the technical equivalents. For example, the reinforcement layer may be fixed to an outer side of the WPC layer instead of being incorporated therein.
Claims (15)
1. A panel, comprising a polymeric composite layer and at least a reinforcement layer for reinforcing the polymeric composite layer at least in the plane of the panel, the reinforcement layer being made of a material which is different from that of the polymeric composite layer.
2. The panel according to claim 1 , wherein the polymeric composite layer is a WPC layer made of wood plastic composite (WPC) and the reinforcement layer is a non-WPC reinforcement layer.
3. The panel according to claim 1 , wherein the reinforcement layer is incorporated within the polymeric composite layer.
4. The panel according to claim 1 , wherein the reinforcement layer has an open structure.
5. The panel according to claim 4 , wherein the polymeric composite layer is continuous through open areas of the open structure.
6. The panel according to claim 1 , wherein the reinforcement layer comprises a fiber web.
7. The panel according to claim 1 , wherein the reinforcement layer comprises longitudinal filaments and transversal filaments extending in transverse direction with respect to the longitudinal filaments.
8. The panel according to claim 7 , wherein the mutual distance of at least one of the longitudinal filaments and transversal filaments vary within the reinforcement layer.
9. The panel according to claim 1 , wherein the thickness of portions of the WPC layer at both sides of the reinforcement layer is substantially equal.
10. The panel according to claim 1 , wherein the reinforcement layer is a sheet or plate.
11. The panel according to claim 1 , wherein the reinforcement layer is a self-supporting layer.
12. The panel according to claim 1 , wherein the reinforcement layer is made of one piece.
13. The panel according to claim 1 , wherein the panel comprises at least another reinforcement layer.
14. The panel according to claim 1 , wherein the reinforcement layer is thinner than the polymeric composite layer.
15. The panel according to claim 1 , wherein the polymeric composite layer contains at least 30% polymer.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20100167985 EP2402155A1 (en) | 2010-06-30 | 2010-06-30 | A panel comprising a polymeric composite layer and a reinforcement layer |
EP10167985.0 | 2010-06-30 | ||
PCT/EP2011/060991 WO2012001091A1 (en) | 2010-06-30 | 2011-06-30 | A panel comprising a polymeric composite layer and a reinforcement layer |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130183506A1 true US20130183506A1 (en) | 2013-07-18 |
Family
ID=42829578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/807,434 Abandoned US20130183506A1 (en) | 2010-06-30 | 2011-06-30 | Panel comprising a polymeric composite layer and a reinforcement layer |
Country Status (11)
Country | Link |
---|---|
US (1) | US20130183506A1 (en) |
EP (9) | EP2402155A1 (en) |
CN (1) | CN103153609A (en) |
BR (1) | BR112012033497B1 (en) |
CA (1) | CA2804167C (en) |
DE (2) | DE202011110971U1 (en) |
ES (2) | ES2869246T3 (en) |
PL (2) | PL2588311T5 (en) |
PT (1) | PT3575081T (en) |
RU (3) | RU2592523C2 (en) |
WO (1) | WO2012001091A1 (en) |
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JP2019504946A (en) * | 2016-02-04 | 2019-02-21 | エルジー・ハウシス・リミテッド | Board for interior interior material, method for producing the same, and interior interior material using the board |
US10821714B2 (en) | 2014-11-20 | 2020-11-03 | Ivc B.V. | Method for manufacturing a panel including a reinforcement sheet, and a floor panel |
US11655638B2 (en) | 2014-07-04 | 2023-05-23 | Flooring Industries Limited, Sarl | Floor panel and method for manufacturing floor panels |
US11814852B2 (en) | 2015-09-14 | 2023-11-14 | Flooring Industries Limited Sarl | Floor panel for forming a floor covering |
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KR20170040265A (en) * | 2014-07-31 | 2017-04-12 | 유니린 비브이비에이 | Method and installation for manufacturing a floor covering product and floor covering product obtained hereby |
KR101976405B1 (en) * | 2014-07-31 | 2019-08-28 | 유니린 비브이비에이 | Method and installation for manufacturing a floor covering product and floor covering product obtained hereby |
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JP2019504946A (en) * | 2016-02-04 | 2019-02-21 | エルジー・ハウシス・リミテッド | Board for interior interior material, method for producing the same, and interior interior material using the board |
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