| 摘要 |
<p>1514064 Laminates; faced chipboard FELDMUHLE AG 26 May 1976 [28 May 1975] 21819/76 Headings B5N and B5A [Also in Division C3] A process for the production of a chipboard faced with a layer of paper impregnated with synthetic polymeric material, e.g. a melaminealdehyde resin is characterised by passing a layer 9 of paper impregnated with a synthetic digomeric or polymeric material and an adjacent layer 10 of substantially discrete binding agent treated chip material together on a moving belt 1 between a calendering roll 11 and counter-pressure rollers 14, 15, 16 whilst applying heat. In the embodiment shown, a layer 8 of woven or knitted fabric, e.g. of hessian, forms a decorative exposed surface and the chipboard forming material is applied from device 5 and comprises fine outer sections 10a and a coarse middle section 10b.</p> |
