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US 12,454,122 B2Granted
Wood fibre based panel with a surface layer
AssigneeVälinge Innovation AB
InventorsDarko Pervan, Göran Ziegler
Life of this patent
Estimating the term…
Abstract
A building panel with a surface layer including a wood veneer, a wood fibre based core and a sub-layer between the surface layer and the core. The sub-layer includes wood fibres and a binder. The surface layer has surface portions including material from the sub-layer. The surface portions including material from the sub-layer extend into the wood veneer.
Claims20
A method to produce a building panel, the method comprising:
- applying a first sub-layer comprising wood fibres, a filler and a binder on a first side of a wood fibre based core, the filler consisting of a starch;
- applying a first wood veneer on the first sub-layer to form a first surface layer,
- applying heat and pressure to bond the first wood veneer, the first sub-layer and the wood fibre based core together, whereby material from the first sub-layer is pressed into holes and/or cracks of the first wood veneer,
- wherein the first surface layer has a surface portion comprising material from the first sub-layer extending into the first wood veneer.
1 more element
A method to produce a building panel, the method comprising:
- applying a first sub-layer comprising wood fibres, a filler and a binder on a first side of a wood fibre based core, the filler comprising a starch, the filler being free of cellulose;
- applying a first wood veneer on the first sub-layer to form a first surface layer,
- applying heat and pressure to bond the first wood veneer, the first sub-layer and the wood fibre based core together, whereby material from the first sub-layer is pressed into holes and/or cracks of the first wood veneer,
- wherein the first surface layer has a surface portion comprising material from the first sub-layer extending into the first wood veneer.
1 more element
A method to produce a building panel, the method comprising:
- applying a first sub-layer comprising wood fibres, a filler and a binder on a first side of a wood fibre based core, the filler comprising a maize or potato starch;
- applying a first wood veneer on the first sub-layer to form a first surface layer,
- applying heat and pressure to bond the first wood veneer, the first sub-layer and the wood fibre based core together, whereby material from the first sub-layer is pressed into holes and/or cracks of the first wood veneer,
- wherein the first surface layer has a surface portion comprising material from the first sub-layer extending into the first wood veneer.
1 more element
Dependencies are inferred from the claim text.