| 摘要 |
<p>A wood-based facing material consists of a loose matrix of wood fibers (4) the gaps between which are packed with a polarized hardened filling material (6) of urea-formaldehyde concentrate. The facing material lower face bears an adhesive coating (12) and is bonded to e.g. chipboard or medium density fiberboard. The weight of the filling material is roughly 60 % of that of the wood fibers. The wood fiber content is 100 g/m(2. The bonding agent (12) is a pre-dried duroplastic adhesive e.g. melamine resin applied at up to 15 g/ m(2. The facing material weighs up to 240 g/m(2. Further claimed is a panel of wood based material and completed with a commensurate abrasion-resistant overlay facing material.</p> |
