MEDIUM DENSITY MIXED HARDWOOD FLAKE LAMINA

摘要

MEDIUM DENSITY MIXED HARDWOOD FLAKE LAMINAAbstract of the InventionA lamina for a medium density structural boardmade from dimensioned wood flakes cut from a mixture ofhardwood species and having a high retained internal bondstrength is disclosed. The wood flakes are blended with aphenol formaldehyde resin having a major quantity of a lowmolecular weight fraction and a wax and then formed into ahot pressed product. The lamina may be used alone or asthe core of a structural board having veneer, hardboard orplywood face panels. Three or more lamina may be formedinto a structural board or used as the core of a boardhaving veneer, hardboard or plywood face panels.