Abstract:
The present invention relates to lignocellulosic materials having a core and two outer layers, comprising in the core A)30% to 98% by weight of lignocellulose particles; B) 1% to 25% by weight of expanded plastics particles having a bulk density in the range from 10 to 150 kg/m3, C) 1% to 50% by weight of one or more binders selected from the group consisting of phenoplast resin, aminoplast resin, and organic isocyanate having at least two isocyanate groups, and D) 0% to 30% by weight of additives and in the outer layers E)70% to 99% by weight of lignocellulose fibers, F) 1% to 30% by weight of one or more binders selected from the group consisting of phenoplast resin, aminoplast resin, and organic isocyanate having at least two isocyanate groups, and G) 0% to 30% by weight of additives.
Abstract:
The disclosure relates to a lignocellulosic material having a core and two outer layers, comprising in the core A) 30% to 98% by weight of lignocellulose particles; B) 1 % to 25% by weight of expanded plastics particles having a bulk density in the range from 10 to 150 kg/m3, C) 1 % to 50% by weight of one or more binders selected from the group consisting of phenoplast resin, aminoplast resin, and organic isocyanate having at least two isocyanate groups, and D) 0% to 30% by weight of additives and in the outer layers E) 70% to 99% by weight of lignocellulosic fibres, F) 1 % to 30% by weight of one or more binders selected from the group consisting of phenoplast resin, aminoplast resin, and organic isocyanate having at least two isocyanate groups, and G) 0% to 30% by weight of additives, wherein the expanded plastics particles B are present in nonuniform distribution in the core, therefore the weight ratio X of expanded plastics particles B to lignocellulose particles A in the outer regions of the core (“exterior”) is different from the weight ratio Y of expanded plastic particles B to lignocellulose particles A in the inner region of the core (”interior”).
Abstract:
It is desirable to provide lignocellulosic materials having improved flexural strength, improved screw pullout values, good surface properties, and good processing properties. The present invention provides a lignocellulosic material having a core and two outer layers, the core comprising 30-98% lignocellulose particles, 1-25% expanded plastics, and 1-50% binders, the outer layers comprising 70-99% lignocellulosic fibers and 1-30% binders, wherein the weight ratio of expanded plastics to lignocellulose particles in the exterior of the core is different than said ratio in the interior of the core.
Abstract:
The present invention relates to lignocellulosic materials having a core and two outer layers, comprising in the core (A) 30% to 98% by weight of lignocellulose particles; (B) 1 % to 25% by weight of expanded plastics particles having a bulk density in the range from 10 to 150 kg/m3, (D) 1 % to 50% by weight of one or more binders selected from the group consisting of phenoplast resin, aminoplast resin, and organic isocyanate having at least two isocyanate groups, and (D) 0% to 30% by weight of additives and in the outer layers, (E) 70% to 99% by weight of lignocellulose fibers, (F) 1 % to 30% by weight of one or more binders selected from the group consisting of phenoplast resin, aminoplast resin, and organic isocyanate having at least two isocyanate groups, and G) 0% to 30% by weight of additives. (No Suitable Figure)
Abstract:
The present invention relates to lignocellulosic materials having a core and two outer layers, comprising in the core A)30% to 98% by weight of lignocellulose particles; B) 1% to 25% by weight of expanded plastics particles having a bulk density in the range from 10 to 150 kg/m