Method of making chipboard involving grinding together a fibrous filler and solid resin
First Claim
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1. A METHOD OF MAKING A CHIPBOARD COMPRISING THE STEPS OF PREPARING AN ASSEMBLY OF WOOD CHIPS AND A RESIN BINDER, GRINDING TOGETHER PARTICLES OF A FIBROUS FILLER, HAVING A MESH NUMBER OF NOT LESS THAN 20, WITH SOLID PARTICLES OF A RESIN BINDER, WHEREBY THE SOLID PARTICLES OF RESIN BINDER ARE, AFTER GRINDING, SUBSTANTIALLY NO LARGER THAN THOSE OF THE FILLER, COATING AT LEAST ONE SURFACE OF SAID ASSEMBLY WITH THE RESULTING GROUND MIXTURE, AND CURING THE COATED ASSEMBLY UNDER PRESSURE SO AS TO FORM A CHIPBOARD HAVING AT LEAST ON SUBSTANTIALLY SMOOTH SURFACE.
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1 Claim
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1. A METHOD OF MAKING A CHIPBOARD COMPRISING THE STEPS OF PREPARING AN ASSEMBLY OF WOOD CHIPS AND A RESIN BINDER, GRINDING TOGETHER PARTICLES OF A FIBROUS FILLER, HAVING A MESH NUMBER OF NOT LESS THAN 20, WITH SOLID PARTICLES OF A RESIN BINDER, WHEREBY THE SOLID PARTICLES OF RESIN BINDER ARE, AFTER GRINDING, SUBSTANTIALLY NO LARGER THAN THOSE OF THE FILLER, COATING AT LEAST ONE SURFACE OF SAID ASSEMBLY WITH THE RESULTING GROUND MIXTURE, AND CURING THE COATED ASSEMBLY UNDER PRESSURE SO AS TO FORM A CHIPBOARD HAVING AT LEAST ON SUBSTANTIALLY SMOOTH SURFACE.
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Current AssigneeLogan Annand David
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Original AssigneeLogan Annand David
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InventorsLOGAN ANNAND DAVID
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Application NumberUS04/261,831Time in Patent Office1,356 DaysField of SearchUS Class Current264/113CPC Class CodesB27N 1/00 Pretreatment of moulding ma...B27N 3/06 Making particle boards or f...
