Process for manufacturing lignocellulosic material fibreboard

Details Process for manufacturing lignocellulosic material fibreboard Process for manufacturing lignocellulosic material fibreboard

C - Chemistry, Metallurgy

09

J

18/1010

C09J 161/24 (2006.01) C08L 97/02 (2006.01)

Patent

CA 1168416

ABSTRACT OF THE DISCLOSURE A process for manufacturing lignocellulosic material fibre- board, wherein the fibre impregnation step is effected after drying thereof. Said impregnation is effected with a binder mixture having a resin solids content of about 50% and a viscosity at 25°C of less than 30 cps, prepared from a tack free urea-formaldehyde resin having a solids content of 60% to 70%, a viscosity at 25°C lying between 150 and 300 cps and a free formaldehyde value of less than 1%.

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