| abstract |
The invention is directed to lignocellulosic materials having a core and two outer layers, containing in the coren A) lignocellulose particles; B) expanded plastics particles having a bulk density in the range from 10 to 150 kg/m 3 , C) one or more binders selected from the group consisting of aminoplast resin, phenoplast resin, and organic isocyanate having at least two isocyanate groups, and D) optionally additives and in the outer layers E) lignocellulose particles, F) one or more binders selected from the group consisting of aminoplast resin, phenol-formaldehyde resin, and organic isocyanate having at least two isocyanate groups, and where the lignocellulose particles of the outer layers E comprise at least 25% by weight of lignocellulosic chips and the expanded plastics particles B are present in nonuniform distribution in the core. |