Binder composition in wooden composite boards

A binder composition, in particular for wooden composite boards obtainable from

• at least one polymer adhesive selected from a formaldehyde adhesive, polyurethane adhesive, epoxide resin adhesive, or polyester adhesive,
• at least one polyalcohol compound selected from an alditol,
• one compound of the general formula (I)
• RaSiX(4−a) (I),
• or the general formula (II)
• ObXc(OH)dReSiO(4−b−c−d−e)/2 (II),
• wherein
• X is H, OH or a hydrolysable moiety selected from the group comprising halogen, alkoxy, carboxyl, amino, monoalkylamino or dialkylamino, aryloxy, acyloxy, alkylcarbonyl,
• R is a non-hydrolysable organic moiety R selected from the group comprising substituted and unsubstituted akyl, substituted and unsubstituted aryl, substituted and unsubstituted alkenyl, substituted and unsubstituted alkinyl, substituted and unsubstituted cycloalkyl, which may be interrupted by —O— or —NH—, and
• wherein R has at least one functional group Q selected from a group comprising an epoxide, hydroxyl, ether, amino, monoalkylamino, dialkylamino, substituted and unsubstituted aniline, amide, carboxyl, alkinyl, acryl, acryloxy, methacryl, methacryloxy, mercapto, cyano, alkoxy, isocyanate, aldehyde, alkylcarbonyl, acid anhydride and/or phosphoric acid group, and
• R and X can be in each case the same or different from each other, and
• a=0, 1, 2, 3, in particular 0 or 1,
• b, c, d=0 or 1, and
• e=1, 2, 3,
• wherein at least two different compounds of the general formula (I) and/or (II) are used, and
• wherein a first compound corresponds to the formula SiX4 with X being OH or alkoxy and a second compound corresponds to the formula RaSiX(4−a) with a=1 or 2, wherein X being OH or alkoxy, R is methyl, ethyl, n-propyl or n-butyl and Q is a glycidyl or glycidyloxy group, an alkoxy, an amino or an isocyano group.