Board and floor panel based on such board
AssigneeUnilin BV
InventorsBenjamin Clement, Sam Ledegen
Life of this patent
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Abstract
Sheet material includes at least two layers of material, wherein a first layer of material forms more than half the thickness of the sheet material and is mainly built up from wood particles glued by means of a first binder and pressed. The first binder is thermosetting, wherein the second layer of material is present on the surface of the aforementioned sheet material and is mainly built up from particulate particles glued by a second binder and pressed. The second binder is thermoplastic and/or elastomeric.
Claims15
A sheet material with at least first and second layers of material, wherein the first layer of material forms more than half of the thickness of the sheet material and is mainly built up from wood particles glued by means of a first binder and pressed,
- wherein the first binder is thermosetting,
- wherein the wood particles of the first layer of material are wood fibres;
- wherein the second layer of material is present on a first surface of the sheet material and is mainly built up from particulate particles glued by means of a second binder and pressed,
- wherein the second binder is thermoplastic or elastomeric;
- wherein the particulate particles of the second layer of material are or comprise wood chips or wood fibres;
- wherein the sheet material has a density profile over the thickness of the sheet material, wherein the density profile has a first peak density formed in the material of the first layer of material, and a second peak density formed in the material of the second layer of material;
- wherein a decorative top layer is arranged on the second layer of material;
- wherein the decorative top layer comprises a printed paper sheet and a transparent or translucent layer applied thereon;
- wherein the transparent or translucent layer comprises synthetic material that is a thermally cured acrylate resin based on a multifunctional acrylate monomer and an acrylate oligomer;
- wherein a polyurethane coating is applied on at least one surface of the printed paper, the at least one surface of the printed paper sheet facing the transparent or translucent layer.
A floor panel comprising a substrate, wherein the substrate comprises a sheet material;
- wherein the sheet material comprises at least two layers of material,
- wherein a first layer of material forms more than half of the thickness of the sheet material and is mainly built up from wood particles glued by means of a first binder and pressed,
- wherein the first binder is thermosetting,
- wherein the wood particles of the first layer of material are wood fibres;
- wherein a second layer of material is present on the surface of the sheet material and is mainly built up from particulate particles glued by means of a second binder and pressed, wherein the second binder is thermoplastic or elastomeric;
- the particulate particles of the second layer of material are or comprise wood chips or wood fibres;
- wherein the floor panel comprises a decorative top layer applied on the second layer of material;
- wherein the decorative top layer comprises a printed paper sheet and a transparent or translucent layer applied thereon;
- wherein the transparent or translucent layer comprises synthetic material that is a thermally cured acrylate resin based on a multifunctional acrylate monomer and an acrylate oligomer;
- wherein a polyurethane coating is applied on at least one surface of the printed paper, the at least one surface of the printed paper sheet facing the transparent or translucent layer.
A sheet material with at least one layer of material, wherein this layer of material is substantially built up from particulate particles which are glued by means of a binder and pressed,
- wherein the binder is thermoplastic or elastomeric;
- wherein the particulate particles are wood chips or wood fibres;
- wherein the binder is polyvinyl butyral (PVB);
- wherein at least one decorative top layer is arranged on the at least one layer of material;
- wherein the decorative top layer comprises a printed paper sheet and a transparent or translucent layer applied thereon, wherein the transparent or translucent layer comprises synthetic material that is a thermally cured synthetic material based on a thermally cured acrylate resin based on a multifunctional acrylate monomer and an acrylate oligomer;
- wherein a polyurethane coating is applied on at least one surface of the printed paper, the at least one surface of the printed paper sheet facing the transparent or translucent layer.
Dependencies are inferred from the claim text.