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    • 6. 发明申请
    • METHOD OF MAKING A SHEET OF BUILDING MATERIAL
    • 制作材料的方法
    • US20100215946A1
    • 2010-08-26
    • US12679889
    • 2007-10-01
    • Geoffrey F. WenselRobert W. Suggitt
    • Geoffrey F. WenselRobert W. Suggitt
    • B32B5/16B29C55/02
    • B29C43/24B29C43/003B29C47/0019B29C47/8845B29C47/906B29K2023/0608B29K2105/26B29K2509/00B29L2031/10B29L2031/108C08J5/18C08J2323/06C08L23/06C08L23/0815E04D5/06Y10T428/25Y10T428/251Y10T428/258Y10T428/259C08L2666/06
    • A method of making a sheet of building material, useful for roofing or siding applications, and the sheet material made by such method. A mixture of a thermoplastic resin and mineral filler is prepared, the resin comprising about 10% to 40% by weight of the mixture and the filler comprising about 60% to 90% by weight. The mixture is mixed at a temperature above the melting point of the resin and is formed into a sheet at such temperature. The sheet is allowed to cool until the surface is at a temperature below the midpoint of the melting range of the thermoplastic resin, e.g. in the range of 210 to 220 degrees F. (99 to 104 degrees C.), for polyethylene, at which point it is strained by passing it through calendering rollers. The sheet material made by this process, having a high concentration of mineral filler, is fire resistant, durable, ductile, of moderate weight and resistant to weathering. It can be produced using relatively inexpensive manufacturing equipment. The sheet material can incorporate a high proportion of recycled resin, such as recycled high density polyethylene.
    • 制造用于屋面或壁板应用的建筑材料片材的方法以及通过这种方法制成的片材。 制备热塑性树脂和矿物填料的混合物,所述树脂占混合物的约10重量%至40重量%,填料占约60重量%至90重量%。 将混合物在高于树脂熔点的温度下混合,并在该温度下形成片材。 允许片材冷却直到表面处于低于热塑性树脂的熔融范围的中点的温度,例如, 在210至220华氏度(99至104摄氏度)的范围内,对于聚乙烯,此时通过使其通过压延辊而变形。 通过该方法制备的具有高浓度矿物填料的片材是耐火的,耐用的,延展性的,重量适中并且耐风化的。 它可以使用相对便宜的制造设备生产。 片材可以加入高比例的再循环树脂,例如再循环的高密度聚乙烯。