Patent ID: 6120717
Filing Date: 2000-09-19
Classification: B27N,C08K,C08L,C09J

Abstract:
An improved process for manufacturing wood composition boards under heat and pressure comprising providing a fibrous mat, treating the surface of said mat, hot pressing said mat at elevated temperature and pressure into a solid composition board product, and releasing said composition board from said press wherein the improvement comprises treating the surface of the mat with a composition comprising a crosslinking resin and an aqueous dispersion of acrylic polymer particles, wherein said particles have a THF gel content of greater than about 70% and wherein said particles are formed from a monomer mixture comprising from about 0.2% to about 5%. by weight allyl methacrylate based on the weight of said particles; and whereby the press release rating of said manufactured wood composition board is superior to that of a comparative board comprising particles having a THF gel content of less than about 70%.