Patent ID: 8901208

Claim:
A composite wood board comprising a collection of wood held together by an organic binder, wherein the organic binder includes at least one reaction product of: i) a reducing sugar reactant selected from the group consisting of: a reducing sugar; a reducing sugar yielded by a carbohydrate in situ under thermal curing conditions; and combinations thereof; and ii) an amine reactant selected from a primary amine NH 2 R 1 and a secondary amine NHR 1 R 2 , where R 1 and R 2 are each independently selected in NHR 1 R 2 , R 1 is alkyl which is substituted by at least one group selected from aminoalkyl, amide, nitrile, amino, dialkylamino, acylamino and combinations thereof, and R 2 is selected from alkyl, cycloalkyl, alkenyl, cycloalkenyl, heterocyclyl, aryl, and heteroaryl, each of which may be optionally substituted; and where the composite wood board has one or more of the following characteristics: a modulus of elasticity (MOE) of at least 1800 N/mm 2 , a bending strength (MOR) of at least 14 N/mm 2 an Internal bond strength (IB) of at least 0.28 N/mm 2 a thickness swelling after 24 hours in water at 20° C. of less than or equal to 12% a water absorption after 24 hours in water at 20° C. of less than or equal to 40%.