Particle board with middle layer of defibrated wood particles

Details Particle board with middle layer of defibrated wood particles Particle board with middle layer of defibrated wood particles

B - Operations, Transporting

32

B

B32B 21/02 (2006.01) B27N 1/00 (2006.01) B27N 3/02 (2006.01) B27N 3/04 (2006.01) B27N 3/14 (2006.01) B27N 3/16 (2006.01) B32B 21/13 (2006.01)

Patent

CA 2740770

The invention relates to a wood particle board (5) and to a process for the manufacture of the same. The process involves the feed-out of a first quantity (9') of glue-coated wood particles (25), producing a bottom particle mat (10'), feed-out of a second quantity (9"), comprising a homogeneous mixture of glue-coated defibrated wood particles, for producing an intermediate, voluminous mat (20) on top of the bottom particle mat (10'), feed-out of a third quantity (9) of glue-coated wood particles, producing a top particle mat (10) on top of said intermediate, voluminous mat (20), and compression of said fed-out quantities, to form a bottom (1), intermediate (7) and top layer (3) of the wood particle board (5).

L'invention concerne un panneau de particules de bois (5) et son procédé de fabrication. Ledit procédé comprend les étapes suivantes: apport dune première quantité (9') de particules (25) de bois encollées, production dun mat inférieur de particules (10'), apport dune deuxième quantité (9') dun mélange homogène de particules de bois (25) défibrées encollées formant un mat intermédiaire volumineux (20) au-dessus du mat inférieur (10'), apport dune troisième quantité (9') de particules encollées, production dun mat supérieur (10') de particules de bois encollées au-dessus du mat intermédiaire volumineux (20), et compression desdits apports pour former les couches inférieure (1), intermédiaire (7) et supérieure (3) du panneau de particules de bois (5).

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