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Abstract

The present invention relates to a process for the discontinuous or continuous, preferably continuous, production of single-layer or multilayer lignocellulosic materials, comprising the process steps of

v) mixing the components of the individual layers,x) scattering the mixture(s) produced in process step i) to form a mat,xi) precompacting the scattered mat, andxii) hot pressing the precompacted mat,which comprises, in process step i)for the core of multilayer lignocellulosic materials or for single-layer lignocellulosic materials, mixing the lignocellulose particles (component LCP-1) withu) 0 to 25 wt % of expanded polymer particles having a bulk density in the range from 10 to 150 kg/m3 (component A),v) 0.05 to 1.39 wt % of binders selected from the group of organic isocyanates having at least two isocyanate groups (component B),w) 3 to 20 wt % of binders selected from the group of amino resins (component C),x) 0 to 5 wt % of curing agents (component D),y) 0 to 5 wt % of additives (component E),z) 0.01 to 10 wt % of trialkyl phosphate (TAP) (component F), andfor the outer layers of multilayer lignocellulosic materials, mixing the lignocellulose particles (component LCP-2) withaa) 1 to 30 wt % of binders selected from the group of amino resins, phenolic resins, organic isocyanates having at least two isocyanate groups, protein-based binders, and other polymer-based binders (component G),bb) 0 to 5 wt % of curing agents (component H),cc) 0 to 5 wt % of additives (component I), anddd) 0 to 10 wt % of trialkyl phosphate (TAP) (component J).

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First Claim