B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/122, 154/129
B32B 17/02 (2006.01) B32B 21/04 (2006.01) B32B 21/10 (2006.01)
Patent
CA 1302221
Abstract of the disclosure The invention relates to a multiply wood product. The supply of wood suited e.g. for the production of ply- wood has considerably decreased. Consequently, attempts have been made to compensate the deterioration in the quality of the surface finish and in other wood qualities e.g. by means of various coating methods, with varying success. The most important problem has been the insuffi- cient adhesion between the coating and the wood. For the elimination of these problems, a multiply wood product has been developed in which at least one layer is formed by a crude fibre ply blank comprising haphazardly oriented fibre material as well as bonding agents, additives and filler materials. A single hot-pressing step in connection with the production of the multiply wood product forms this blank into homogeneous ply (14) which, by virtue of the partial splitting of the fibre structure and the re- sulting reorientation, which take place during the hot- pressing, fills the irregularities in the surface of an adjacent wood layer (1) and forms a tight synthetic ply of accurate dimensions.
521588
Algars Rainer
Hautaniemi Erkki
Jarvela Pentti
Le Bell Jean
Pirhonen Jussi
Ogilvy Renault
Oy Partek Ab
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