Particle board process using polymeric isocyanate/release agent
AssigneeThe Quaker Oats Company
InventorsBen R. Bogner, Francis C. Grant-Acquah
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Abstract
A binder system is disclosed which incorporates an internal release agent and comprises a mixture of polyisocyanate resin, furfural and an ester of phosphoric acid. In the process of the invention the ester of phosphoric acid is placed into solution with furfural and subsequently blended with the polyisocyanate. Increased stability of the binder system is observed as well as providing for increased mold releasing capabilities.
Claims3
A process for the preparation of a particle board comprising the steps of mixing furfural and a phosphate to form a stable release agent solution, blending a polyisocyanate with said release agent solution to form a binder system, mixing said binder system with wood chip particles and molding said mixture of said binder system and cellulosic material under heat to form a board of good strength and water resistance.
Dependencies are inferred from the claim text.