Light wood-base materials

Details Light wood-base materials Light wood-base materials

B - Operations, Transporting

27

N

B27N 3/00 (2006.01)

Patent

CA 2666454

The invention relates to light wood-based materials containing 30 - 92.5 % by wt. of wood particles, in relation to the wood-based material. Said wood particles have an average density of between 0.4 - 0.85 g/cm3, 2.5 - 20 % by wt. of polystyrene and/or styrene copolymer as filling material, in relation to the wood-based material. Said filling material has a bulk density of between 10 -100 kg/m3, and 5 - 50 % by wt. of binding agents, in relation to wood-based material. The average density of the light wood-based material is less than or equal to 600 kg/m3.

L'invention concerne des matériaux légers dérivés du bois qui contiennent 30 à 92,5 % en poids, par rapport au matériau dérivé du bois, de particules de bois à densité moyenne comprise entre 0,4 et 0,85 g/cm3, 2,5 à 20 % en poids, par rapport au matériau dérivé du bois, de polystyrène et/ou de copolymère de styrène en tant que matière de charge à densité en vrac comprise entre 10 et 100 kg/m3, et 5 à 50 % en poids, par rapport au matériau dérivé du bois, de liants. Le matériau léger dérivé du bois selon l'invention a une densité moyenne inférieure ou égale à 600 kg/m3.

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