Basf Se Corporation

Dynea Oy

Institut Für Holztechnologie Dresden Gemeinnützige Gmbh

Ihd Institut Für Holztechnologie Dresden Ggmbh

Detlef Krug

Ingolf Hennig

Michael Hofmann

Stephan Weinkötz

Stephan Weinkoetz

Marco Mäbert

Hendrikus W G Van Herwijnen

Maria Schultze

Axel Höhling

Wolfgang Heep

Andreas Weber

Matthias Schade

Werner Teufel

Marco Maebert

Helmut Bauch

Margot Scheithauer

The invention relates to a method for producing multi-layered lignocellulose materials having a core and an upper and a lower cover layer, said method comprising the following steps a) mixing the components, b) spreading the mixtures in layers, c) pre-compressing, d) applying a high-frequency electric field e) hot pressing. According to the invention, a mixture of C) 1-15 wt.-% of a binding agent selected from the group consisting of aminoplastic resin and organic isocyanate having at least two isocyanate groups [components C)], F) 0.1-3% alkali-/akaline earth salts, for the cover layers of the lignocellulose particles G) with H) 1-15% of a binding agent selected from the group consisting of aminoplastic resin and an organic isocyanate is mixed. After step a) the mixture for the core contains, with respect to the total dry weight of the mixture of the components A)-F) 3-15% water, the mixture for the cover layers of the components G)-K) contains 5-20% water, and the following conditions are met: F)&#x2265;1,1&#x2022;components K) and [components F)+components D)]&#x2265;1,1&#x2022;[components K)+components I)].

Method for producing multi-layered lignocellulose materials having a core with special properties and at least one upper and one lower cover layer

The present invention relates to a process for the batchwise or continuous, preferably continuous production of single-layer lignocellulose-based boards or of multilayer lignocellulose-based boards with a core and with at least one upper and one lower outer layer, comprising the following steps: 

Method for producing single or multi-layered lignocellulose materials by hardening in a high frequency electric field

The invention relates to a binder for producing materials based on wood chips and/or wood fibers. The aim of the invention is to design a binder which is used for producing and gluing materials based on wood chips and/or wood fibers, contains natural protein components, significantly reduces or even eliminates the drawbacks of the prior art, and can be economically produced and used. Said aim is achieved by a binder which is used for materials based on wood chips and/or wood fibers, comprises an aldehyde-based condensation resin and other additives, and is characterized in that the binder comprises a water-soluble reactive additive containing a peptide/amino acid mixture without moieties of water-insoluble and high-viscosity proteins. The invention also relates to a method for producing said binder as well as a molded article.

Binder for materials based on wood chips and/or wood fibers, method for the production of said binder, and molded article

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Dresden, Germany

Detlef Krug