Method for the production of cellulosic board material

Details Method for the production of cellulosic board material Method for the production of cellulosic board material

C - Chemistry, Metallurgy

08

K

400/1308, 6/179,

C08K 5/16 (2006.01) B27N 1/00 (2006.01) C08L 97/02 (2006.01) C09K 3/00 (2006.01)

Patent

CA 1145499

ABSTRACT OF THE DISCLOSURE A method for producing board materials of cellulose containing components using a novel composition of formaldehyde absorbing agent, wax and water together with formaldehyde-based curable glues. By treatment of at least one part of the components at a low moisture content with a formaldehyde absorbing agent in the composition the board materials obtained after pressing get a low content of free formaldehyde and very good strength properties. The moisture content of the components at the treatment is lower than 12 per cent by weight. The formaldehyde absorbing agent is preferably urea.

326490

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