Patent ID: 8188266

Claim:
A composite material, comprising: (a) at least one cellulose- or lignocellulose-containing material, and (b) a composite as a binder, the composite resulting from the reaction of at least the components (i) a glycidyloxypropylalkoxysilane, (ii) an aqueous silica sol having a solids content of >20% by weight, (iii) an organic acid as a hydrolysis catalyst and (iv) n-propyl zirconate, butyl titanate or titanium acetylacetonate as a crosslinking agent, and wherein said composite material is obtained by treating dried or moist cellulose- or lignocellulose-containing material (a) with a composite according to (b), to obtain a treated cellulose or lignocellulose material; bringing the treated cellulose or lignocellulose material into a desired form, to obtain a formed material and then hot-pressing said formed material, wherein up to 15% by weight of composite (b), based on absolutely dry cellulose or lignocellulose material, are used, and wherein the treated cellulose or lignocellulose material is scattered to give a cake, combed, and pressed at a temperature of up to 250° C. and at a pressure of up to 9 N/mm 2 and for a time of up to 300 s per mm board thickness.