Method of molding an article from wood particles having superior impact resistance

Claim 1

THE METHOD OF SHAPING WOOD FRAGMENTS INTO ARTICLES OF MANUFACTURE COMPRISING THE STEPS OF, FORMING A WOOD FRAGMENT BONDING AND TREATING SOLUTION OF POLYVINYL ACETATE EMULSION, WATER AND PHOSPHORIC ACID IN THE RATIO OF ABOUT EIGHT OUNCES OF (5% PHOSPHORIC ACID TO 12 QUARTS OF A MIXTURE OF ONE PART POLYVINYL ACETATE EMULSION (55% RESIN CONTENT) AND 1 TO 50 PARTS WATER, MIXING THE WOOD FRAGMENTS WITH THE WOOD TREATING SOLUTION IN THE RATIO OF ABOUT 30 LBS. OF WOOD FRAGMENTS TO ABOUT 12 QUARATS OF THE TREATING SOLUTION, LETTING THE MIXTURE OF WOOD FRAGMENTS AND SOLUTION STAND FOR ABOUT 6 HOURS AT ABOVE 40*F. FOR REACTION WITH THE WOOD FRAGMENTS AND REDUCTION OF THE MOISTURE CONTENT TO ABOUT 10% THEN MOLDING UNDER HEAT AND PRESSURE TO THE DESIRED SHAPE USING PRSSURES OF 1 TO 50 TONS OR MORE AT TEMPERATURES BETWEEN ABOVE 90*F. AND BELOW 265*F.