Use of calcium borate in lignocellulosic-based composites

(57) The lignocellulose system compound material products containing calcium borate of the amount of summary insect killing have the tolerance over the attack by the fungi and insect which destroy wood. The molar ratio of CaO: BO is the poly 3 calcium borate of about 2: 3 and the molar ratio of CaO: BO of desirable calcium borate 6 calcium borate of 1: 3. Compound material combines this calcium borate with the particles of a lignocellulose material, and adhesive resin, and can manufacture it by generally forming this compound material by heating and pressurization.