Oriented strand boards

L. Evers (Inventor), Rolf A.T.M. van Benthem (Inventor), J.M.J. Mattheij (Inventor), J.G. Gomez Bueso (Inventor), J.A.A. Vermeulen (Inventor)

Research output: PatentPatent publication

Abstract

Oriented strand board (OSB), comprising a core layer and two face layers, whereby the face layers comprise an adhesive composition, wherein the adhesive composition in at least one of the face layers comprises a resin composition comprising melamine, formaldehyde, optionally urea and aromatic hydroxyl compounds, wherein the molar ratio of melamine to formaldehyde is 1:0.8-4.0, the molar ratio of melamine to urea is 1:0-2.0 and the molar ratio of melamine to aromatic hydroxyl compounds is 1:0-2.0. In a preferred embodiment, both the face layers and the core layer comprise the said adhesive composition. The OSB's according to the invention can meet the OSB/3 and even the OSB/4 requirements in the EN 300 standards.
Original languageEnglish
Patent numberWO/2005/000982
Priority date30/06/03
Filing date28/06/04
Publication statusPublished - 6 Jan 2005
Externally publishedYes

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