785,007. Laminates. ELMENDORF, A. May 6, 1954, No. 13180/54. Class 140. A veneer panel includes a resin-bonded fibrous ligno-cellulose or wood particle core and thin veneer faces bonded to opposite sides of the core characterized in that the veneer faces when clay have the same across-the-grain width as the thin veneer faces when in the-initial green or wet condition, in which condition the veneer faces have been applied to the core, and in that the wood particle core includes zones adjacent the veneer faces in which the ratio of the binder to the wood particles is substantially higher than in the interior of the core. The core may consist of naturally occurring or botanic wood fibres, or fibre bundles or ligno-cellulose particles such as hammer-milled wood waste, bonded together with a binder under heat and pressure. Specified binders are phenolic resin and urea resin. The core may be compressed to a density exceeding that of the wood. The steam generated during hot-pressing causes the binder to flow and, if open defects 4 are present in a veneer 3 they are filled by the core material 5 under the action of the heat and pressure. Specifications 701,268 and 785,008 are referred to.
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