Method of forming a board product
First Claim
1. THE METHOD OF FORMING A BOARD PRODUCT COMPRISING PREPARING A FIRST AQUEOUS SLURRY-FORMES LOOSELY FELTED, WET MAT UNIT OF INTERLACED CELLULOSIC FIBERS HAVING A MOISTURE CONTENT OF AT LEAST ABOUT FIFTY PERCENT BASED ON THE DRY WEIGHT OF THE FIBERS WHEREBY THE RESULTANT MAT UNIT IS SOFT AND PULPY, DUSTING A COATING OF DRY ADHESIVE POWDER ONTO DISCRETE MOIST COARSE WOODEN COMPONENTS, THE COMPONENTS HAVING BOTH WIDTH AND LENGTH MANY TIMES GREATER THAN THE THICKNESS THEREOF,THE GRAIN OF SAID COMPONENTS EXTENDING LONGITUDINALLY THEREOF, SAID COMPONENTS HAVING A MOISTURE CONTENT OF ONLY ABOUT THAT OF GREEN WOOD, ASSEMBLING UPON SAID FIRST MAT UNIT WHILE IN SAID WET, SOFT AND PULPY CONDITION, A SUBSTANTIALLY PULP FREE CORE LAYER CONSISTING OF SAID COATED COMPONENTS IN LOOSE FORM, SAID COMPONENTS BEING ARRANGED IN A POSITION SUBSTANTIALLY PARALLEL WITH SAID COATED COMPONENTS IN TO SAID MAT WHEREBY THE GRAIN OF SAID COMPONENTS EXTENDS SUBSTANTIALLY PARALLEL WITH SAID MAT, THE GRAIN OF SOME OF THE COMPONENTS EXTENDING IN A DIFFERENT DIRECTION FROM THAT OF OTHER OF THE COMPONENTS, PLACING A SECOND WET MAT UNIT PREPARED THE SAME AS SAID FIRST MAT UNIT OVER THE UPPER SURFACE OF SAID CORE LAYER, THE OPPOSITE SURFACES OF SAID CORE LAYER BEING ROUGH, EVEN AND HAVING DEPRESSIONS THEREIN, COMPRESSING THE ASSEMBLED MAT UNITS AND CORE BETWEEN PLATENS WHEREBY THE FIBERS ARE
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1 Claim
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1. THE METHOD OF FORMING A BOARD PRODUCT COMPRISING PREPARING A FIRST AQUEOUS SLURRY-FORMES LOOSELY FELTED, WET MAT UNIT OF INTERLACED CELLULOSIC FIBERS HAVING A MOISTURE CONTENT OF AT LEAST ABOUT FIFTY PERCENT BASED ON THE DRY WEIGHT OF THE FIBERS WHEREBY THE RESULTANT MAT UNIT IS SOFT AND PULPY, DUSTING A COATING OF DRY ADHESIVE POWDER ONTO DISCRETE MOIST COARSE WOODEN COMPONENTS, THE COMPONENTS HAVING BOTH WIDTH AND LENGTH MANY TIMES GREATER THAN THE THICKNESS THEREOF,THE GRAIN OF SAID COMPONENTS EXTENDING LONGITUDINALLY THEREOF, SAID COMPONENTS HAVING A MOISTURE CONTENT OF ONLY ABOUT THAT OF GREEN WOOD, ASSEMBLING UPON SAID FIRST MAT UNIT WHILE IN SAID WET, SOFT AND PULPY CONDITION, A SUBSTANTIALLY PULP FREE CORE LAYER CONSISTING OF SAID COATED COMPONENTS IN LOOSE FORM, SAID COMPONENTS BEING ARRANGED IN A POSITION SUBSTANTIALLY PARALLEL WITH SAID COATED COMPONENTS IN TO SAID MAT WHEREBY THE GRAIN OF SAID COMPONENTS EXTENDS SUBSTANTIALLY PARALLEL WITH SAID MAT, THE GRAIN OF SOME OF THE COMPONENTS EXTENDING IN A DIFFERENT DIRECTION FROM THAT OF OTHER OF THE COMPONENTS, PLACING A SECOND WET MAT UNIT PREPARED THE SAME AS SAID FIRST MAT UNIT OVER THE UPPER SURFACE OF SAID CORE LAYER, THE OPPOSITE SURFACES OF SAID CORE LAYER BEING ROUGH, EVEN AND HAVING DEPRESSIONS THEREIN, COMPRESSING THE ASSEMBLED MAT UNITS AND CORE BETWEEN PLATENS WHEREBY THE FIBERS ARE
Specification
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Current AssigneeRalph Chapman
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Original AssigneeRalph Chapman
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InventorsChapman, Ralph
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Application NumberUS03/842,528Time in Patent Office655 DaysField of SearchUS Class Current162/103CPC Class CodesB27N 3/06 Making particle boards or f...Y10T 428/253 Cellulosic [e.g., wood, pap...
