BOARD, METHOD OF MANUFACTURING A BOARD AND A PANEL COMPRISING SUCH BOARD MATERIAL
Boards have a mineral content, including magnesiumoxychloride and/or magnesiumoxysulphate, and may be finished with a DPL laminate decorative layer.
1 .- 75 . (canceled)
76 . A board, wherein this board is a board comprising:
5Mg(OH2).MgSO4.7H2O.
77 . The board according to claim 76 , wherein the board comprises at least one layer based on MgO and MgSulphate.
78 . The board according to claim 76 , wherein this board comprises at least two layers having a mutually different composition,
wherein a first layer of said at least two layers comprises or is obtained from at least MgO and MgChloride, while a second layer of said at least two layers comprises or is obtained from at least MgO and MgSulphate.
79 . The board according to claim 76 , wherein this board comprises at least two layers having a mutually different composition,
wherein a first layer of said at least two layers is based on magnesiumoxychloride, while a second layer of said at least two layers is based on magnesiumoxysulphate.
80 . The board according to claim 76 , wherein said board comprises at least three layers,
wherein a layer based on magnesiumoxychloride is adjacent to two layers based on magnesiumoxysulphate, namely one at the bottom and one at the top of the magnesiumoxychloride based layer.
81 . The board according to claim 76 , wherein said board comprises at least three layers,
wherein a layer based on magnesiumoxysulphate is adjacent to two layers based on magnesiumoxychloride, namely one at the bottom and one at the top of the magnesiumoxysulphate based layer.
82 . A coated panel comprising a board according to claim 76 , wherein said panel comprises a decorative layer provided on said board,
wherein said decorative layer comprises thermosetting resin, such as melamine, and a printed paper sheet and/or an overlay paper and/or an underlay paper and/or a wood veneer.
83 . The coated panel as in claim 82 , wherein said coated panel is obtained through a DPL press treatment.
84 . The coated panel comprising a board as in claim 76 , wherein said panel comprises a decorative layer provided thereon,
wherein said decorative layer comprises a wood veneer, or a ceramic tile, or a stone veneer, or a thermoplastic top layer.
85 . A panel, wherein the panel is a floor, wall or ceiling panel,
wherein the panel comprises a coated panel as in claim 82 ;
wherein the board is provided at at least two opposite edges with coupling means allowing to couple two such panels at the respective edges,
wherein a vertical locking perpendicular to the plane of coupled panels and/or a horizontal locking perpendicular to the respective edges and in the plane of the coupled panels is obtained;
wherein said coupling means are basically shaped as a tongue and a groove,
wherein the groove is bordered by an upper lip and a lower lip.
86 . The panel in accordance with claim 76 , wherein said lower lip and/or said upper lip comprises a locking element taking part in said horizontal locking,
wherein the respective lip is at least partially provided in a layer of the board that comprises cellulose fibers and/or magnesiumoxychloride.
87 . A method of manufacturing board, wherein said method comprises:
the step of providing a mixture of at least
35 to 50 wt % of MgO having a purity of 80-98% (wt %)
50 to 65 wt % of MgSO4 in a 20-40% (wt %) solution in water;
the step of solidifying said mixture.
88 . The method of manufacturing board according to claim 87 , wherein said method comprises the step of providing one or more of citric acid, sodium citrate and phosphoric acid is provided in said mixture.