Process for preparing wood chip boards

Details Process for preparing wood chip boards Process for preparing wood chip boards

B - Operations, Transporting

27

N

154/97

B27N 3/00 (2006.01) B27N 1/00 (2006.01) C08L 61/20 (2006.01) C08L 97/02 (2006.01) C08L 1/00 (2006.01)

Patent

CA 1129761

ABSTRACT OF THE DISCLOSURE The present invention provides in a process for prepar- ing a wood chip board in which the wood raw material is subjected to a cutting operation and to a subsequent drying step so as to achieve a moisture content of less than 4% by weight, whereafter the wood chip material is glued with an aqueous liquor of an amino- plast and then the glued chip material thus obtained is compressed under heat, the improvement in which the glueing is effected with a liquor having a solid resin content in the range between 20 and 35% by weight, the amount of glue used containing less than 6% by weight of solid resinbased on the total chip material weight cal- culated as absolutely dry material.

337180

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