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2. 发明授权

US06821614B1 Apparatus and method for continuous formation of composites having filler and thermoactive materials, and products made by the method 失效
标题翻译：用于连续形成具有填料和热活性材料的复合材料的装置和方法，以及通过该方法制备的产品
公开(公告)号：US06821614B1
公开(公告)日：2004-11-23
申请号：US09336339
申请日：1999-06-18
申请人： Paul Dubelsten , Lorence E. Knowles , Erik J. Van Kleek , Alister Cumming Hume , Scott Bradley Gough
发明人： Paul Dubelsten , Lorence E. Knowles , Erik J. Van Kleek , Alister Cumming Hume , Scott Bradley Gough
IPC分类号： B32B2720
CPC分类号： B32B37/10 , B27N3/007 , B27N3/086 , B32B5/16 , B32B23/04 , B32B23/08 , B32B38/0008 , B32B38/06 , B32B2272/00 , B32B2305/70 , B32B2310/14 , B32B2317/16 , B32B2317/18 , B32B2398/20 , Y10T428/249942 , Y10T428/24995 , Y10T428/26
摘要： A method for forming a product from cellulosic material and thermoactive material is described. A mat is formed from a mixture having a predetermined amount of cellulosic material and a predetermined amount of thermoplastic material. The mat is then consolidated and pressed to a predetermined final product thickness. At least a portion of a surface of the mat or product is then surface modified. Consolidating the mixture may include forming a first face layer, forming a core layer on the first face layer, and forming a second face layer on the core layer. Forming the core layer may include depositing mixtures of wood flakes and plastic flakes according to mixture flake size in successive layers such that the core layer has larger flakes adjacent the first face layer and adjacent the second face layer, and smaller flakes in a middle portion of the core layer. The method also can include fusing a sheet of plastic material to at least one surface of the mat, and surface modifying the plastic material. Grafting chemicals can be applied to surface modified mats, plastic material or products. A composite product also is described. One embodiment of the product comprises a first portion having a first core formed from a mixture comprising a cellulosic material and a thermoplastic material, and at least one face layer attached to the first core. The product also comprises a second portion bonded to the first portion. The second portion comprises a second core formed from a mixture comprising a cellulosic material and a thermoplastic material, and at least one face layer attached to the second core.
摘要翻译：描述了从纤维素材料和热活性材料形成产品的方法。由具有预定量的纤维素材料和预定量的热塑性材料的混合物形成垫。然后将垫固化并压制至预定的最终产品厚度。然后将垫或产品的表面的至少一部分进行表面改性。混合混合物可以包括形成第一面层，在第一面层上形成芯层，以及在芯层上形成第二面层。形成芯层可以包括根据连续层中的混合物薄片尺寸沉积木片和塑料薄片的混合物，使得芯层具有与第一面层相邻并且邻近第二面层的较大薄片，并且在中间部分中的较小薄片核心层。该方法还可以包括将一片塑料材料熔合到垫的至少一个表面上，以及改变塑料材料的表面。接枝化学品可用于表面改性垫，塑料材料或产品。还描述了复合产品。该产品的一个实施方案包括具有由包含纤维素材料和热塑性材料的混合物形成的第一芯部的第一部分和连接到第一芯部的至少一个面层。产品还包括结合到第一部分的第二部分。第二部分包括由包含纤维素材料和热塑性材料的混合物形成的第二芯部和连接到第二芯部的至少一个面层。

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