Dieffenbacher Schenck Panel Gmbh

Kay-Henrik Von Der Heide

Gernot Von Haas

A method of making panel-shaped products by hot-pressing a multi-layered formed body of chips of lignocellulose-containing annual plants impregnated with an isocyanate binder, is to avoid the problem of the adhesion of the isocyanate binder. For this purpose, the cover layer material is divided into a cover layer material fine fraction ( ) and a cover layer material coarse fraction ( ), whereby the cover layer material fine fraction ( ) is pre-mixed with adhesion promoters and/or wetting agents and/or acids and/or bases, and next glued with amino and/or phenolic plastics, and the cover layer material coarse fraction ( ) is glued with isocyanate or mixtures of isocyanate and amino and/or phenolic plastics. Next, a five-layered formed body is spread, whereby the outermost cover layers of the formed body consist of the cover layer material fine fraction glued with amino and/or phenolic plastics.

Method of producing panel-shaped products

In a method of producing panel-shaped products by hot pressing a formed multi-layered body of lignocellulose-containing chips impregnated with binder, different binders are used in the middle layer and in the cover layers arranged on both sides of the middle layer, the cover layers consist of chips of wood or other raw materials based on wood impregnated with a binder including amino and/or phenolic plastics, and the middle layer consists of a mixture of chips of lignocellulose-containing annual plants chips of wood or other raw materials based on wood impregnated with a binder including an isocyanate.

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Darmstadt, Germany

Kay-Henrik Von Der Heide