Abstract: The invention relates to a coating for a wood board. In accordance with the invention, the coating is formed of at least three layers, which are the first (1) layer formed of a film containing polyolefin and a coupling agent which is reactive with —OH groups of the wood for forming self-adhesive properties, second (2) layer selected from the group signaling layer and decorative layer and third (3) layer formed of a film containing polyolefin and the coupling agent which is re-active with —OH groups of the wood for forming self-adhesive properties, and the second layer is arranged between the first and third layers, and the layers are joined together by means of the coupling agent. Further, the invention relates to a wood board (4) which has been coated by said coating.

Abstract: The invention relates to a wood-metal composite structure comprising a wood material and a metal material, and the wood material and the metal material (2) are joined together by a coupling agent. In accordance with the invention the wood-metal composite structure (5) comprises a coupling material (1,2,3,4) containing metal material (2), and the coupling material comprises at least three layers, and at least outer layers (1,3) of the coupling material contain polymer and coupling agent which is reactive with —OH groups of the materials for forming self-adhesive properties and at least one layer (2) including metal material is arranged between outer layers (1,3).

Abstract: The invention relates to a coating for a wood board. In accordance with the invention, the coating is formed of at least three layers, which are the first (1) layer formed of a film containing polyolefin and a coupling agent which is reactive with —OH groups of the wood for forming self-adhesive properties, second (2) layer selected from the group signalling layer and decorative layer and third (3) layer formed of a film containing polyolefin and the coupling agent which is re-active with —OH groups of the wood for forming self-adhesive properties, and the second layer is arranged between the first and third layers, and the layers are joined together by means of the coupling agent. Further, the invention relates to a wood board (4) which has been coated by said coating.

Abstract: The invention relates to a glue line material for a wood board. In accordance with the invention,the glue line material is formed of at least first film layer (3), and the film comprises at least three film layers and at least outer film layers contain polyolefin and a coupling agent which is reactive with —OH groups of the wood for forming self-adhesive properties to make the glue line material self adhesive to —OH groups of the wood.

Abstract: The invention relates to a coated wood board, in which the wood board is coated with a coating material. In accordance with the invention, the coating material is formed of polyolefin film, and polyolefin film is at least partially cross-linked so that the percentage of cross-linking is 10-60% bigger than the polyolefin amorphous percentage for pinning two phases, crystalline and amorphous, together for forming a wear and heat resistant coating.