Method of producing press-moulding materials with...

Details Method of producing press-moulding materials with... Method of producing press-moulding materials with...

B - Operations, Transporting

27

N

B27N 3/08 (2006.01) B27N 1/02 (2006.01) B27N 3/00 (2006.01) C07C 55/08 (2006.01) C07C 275/14 (2006.01) C07D 209/02 (2006.01) C07D 521/00 (2006.01) C08G 18/18 (2006.01) C08L 97/02 (2006.01)

Patent

CA 2244190

A process is described for producing pressed materials, particularly wood particle boards, by the hot compaction of raw materials containing lignocellulose which are mixed and/or impregnated with polyisocyanates as binders, with the use of latent, thermally activatable catalysts, wherein ammonium salts from the reaction of amines with malonic acid are used as catalysts.

L'invention concerne un procédé de production de matériaux moulés par compression, notamment de panneaux d'agglomérés en bois, par thermocompression de matériaux contenant de la lignocellulose, mélangés à des polyisocyanates et/ou imprégnés desdits polyisocyanates, à l'aide de catalyseurs thermo-activables latents. Selon ce procédé, les catalyseurs utilisés sont des sels d'ammonium issus de la réaction d'amines avec de l'acide malonique.

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