SOUND ATTENUATING LAMINATE MATERIALS

Sound absorbing or attenuating laminate flooring materials are provided， which are directed to be used in the production of floor covering， floor panels， furniture panels， cabinets， counter-tops and wall panels. As well， the methods for producing such products are provided. In particular， abrasion resistant panels， with a laminated structure， created by forming an assembly which consists of laminating a heat-activated resin impregnated paper wear layer， a decorative layer with printed graphics or a wood veneer decorative layer， a medium density (MDF) or high-density (HDF) natural fiber-based core and a resin impregnated paper balancing layer. To achieve sound absorbing and/or attenuating properties， any or all paper layers may be pre coated with an additional flexible elastomeric coating， film or material prior to assembly of the panel， or the natural fiber core panel may be coated with a flexible elastomeric coating， film or material prior to assembly with the papers. The flexible elastomeric coating， film or material acts to absorb， reduce， and/or ameliorate the sound transmissions inherent in laminated panels.

本发明提供了吸音或减震型层压地板材料，该材料可用于制备地面覆盖物、地板板材、家具板材、橱柜、台面及墙面装饰板。同时，本发明还提供了该类产品的制备方法。
具体而言，本发明提供了具有层压结构的耐磨板材：通过层叠组装热活化树脂浸渍纸耐磨层、带有印刷图案的装饰层或木饰面装饰层、中密度纤维板（MDF）或高密度纤维板（HDF）天然纤维基芯层以及树脂浸渍纸平衡层而制得。
为赋予板材吸音和/或减震性能，可在板材组装前，对任意一层或全部纸层预先施加额外的柔性弹性涂层、薄膜或材料；亦可在将纸材与天然纤维基芯层组装前，先对芯层施加柔性弹性涂层、薄膜或材料。该柔性弹性涂层、薄膜或材料可吸收、减弱并/或改善层压板材固有的声传递问题。