Patent ID: 7736559
Filing Date: 2010-06-15
Classification: C08L

Abstract:
1. A method of making a wood composite, the method comprising: (a) supplying an amount of cellulosic material comprising a wood element and having an overall moisture content of between 4 and 10% by weight; (b) applying to the cellulosic material a polymeric quaternary amine cure accelerant in an amount of 1 to 8% by weight of the cellulosic material, said polymeric quaternary amine cure accelerant being supplied as an aqueous composition having a solids content of between 5 to 75% by weight (c) also applying to the cellulosic material a protein component in an amount of 1 to 8% by weight of the cellulosic material to yield a thermosetting cellulosic composition, (d) the cellulosic material, polymeric quaternary amine cure accelerant and protein component each being supplied in an amount such that Total Moisture Input per amount of cellulosic material is between 8 and 12% by weight, where the Total Moisture Input is defined as the sum of (1) a product of the overall % by weight moisture content of the cellulosic material and the amount of cellulosic material (2) a product of the polymeric quaternary amine cure accelerant % by weight moisture content and the amount of polymeric quaternary amine cure accelerant and (3) a product of the protein component % by weight moisture content and the amount of protein component and (e) consolidating said thermosetting cellulosic composition under heat and pressure to yield said wood composite.