| 摘要 |
The invention relates to an Oriented Strand Board (OSB), comprising a core layer and two face layers, whereby at least one layer comprises an adhesive composition, characterised in that the adhesive composition comprises a resin composition comprising urea and formaldehyde, whereby the resin composition further comprises melamine and/or an aromatic hydroxyl compound, wherein: the molar ratio of formaldehyde to the sum of melamine and the aromatic hydroxyl compound lies between 8:1 and 100:1; the molar ratio of formaldehyde to the sum of (NH2)2 and the aromatic hydroxyl compound lies between 1:0.2 and 1:2. The invention further relates to a process for preparing the OSB according to the invention.
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