Layered wood composites

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Reexamination Certificate

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C428S536000, C428S537100, C427S408000

Reexamination Certificate

active

07544423

ABSTRACT:
A method for the preparation of a composite product, as well as the composite product. The composite product comprises at least two layers. At least one of the layers is of wood or another cellulose-containing material. The process comprises differentially treating the layers prior to, during, or after the lamination of the layers into a composite product.

REFERENCES:
patent: 4657789 (1987-04-01), Lars
patent: 5234747 (1993-08-01), Walser et al.
patent: 5405705 (1995-04-01), Fujimoto et al.
patent: 6620349 (2003-09-01), Lopez
patent: 2003/0026942 (2003-02-01), Hejna et al.
patent: 2001279917 (2001-10-01), None
patent: WO 01/91925 (2001-12-01), None
patent: WO2005/098135 (2004-04-01), None
patent: WO 2005/098135 (2005-10-01), None
H. J. Deppe, Examination of the Protective Treatment of Plywood, Bundesanst. Mater., 1986, pp. 333-340, vol. 44(9), Holz als Roh-und Werstoff, Berlin-Dahlem, Germany.
Douglas J. Gardener, et al. Wood Composite Preservation, American Chemical Society, Symposium Series, 2003, pp. 399-419, Chapter 25, USA.

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