| 摘要 |
Board material of the type which substantially is composed of flax shives (2), which are bound by means of a thermo-hardening polycondensation glue, characterized in that said board material (1) comprises particulate filling material (4), which is situated at least among said flax shives (2), wherein this particulate filing material (4) comprises foamed particles of polystyrol or polystyrene, and that the bound flax shives (2) form a layer (3) situated centrally in the thickness (T) of the board material (1), whereas one or both surfaces (6) of the board material (1) are formed by a layer (5) comprising bound wood chips, wherein the average dimensions of the wood chips situated at one or both surfaces (6) are smaller than the average dimensions of the flax shives (2) situated centrally, and that said particulate filling material (4) is distributed homogenously or almost homogenously in the entire layer (3) formed by the flax shives (2). |
