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    • 32. 发明授权
    • Extrusion die for making hollow-chamber profiled panels of thermoplastic plastic with interior coextruded layer
    • 挤出模具,用于制造具有内部共挤出层的热塑性塑料的中空室型材板
    • US06821609B2
    • 2004-11-23
    • US10153672
    • 2002-05-24
    • Volker MendeWolfgang Scharnke
    • Volker MendeWolfgang Scharnke
    • B32B100
    • B29C47/705B29C47/0019B29C47/0021B29C47/0028B29C47/065B29C47/12B29C47/145B29L2031/60E04C2/543Y10T428/24182Y10T428/24562Y10T428/24661Y10T428/24744
    • An extrusion die has a distributing tool; a profiling nozzle; and at least three melt-flow ducts; a first melt-flow duct is routed around a second melt-flow duct or the distributing tool using a branch and is merged again downstream from the branch; and a third melt-flow duct opens into the second melt-flow duct. The extrusion die is suitable for extrusion of a hollow-chamber profiled panel of a thermoplastic plastic with a layered structure which comprises a top and bottom layer of a first plastic melt; and an intermediate layer of a second plastic melt disposed in an interior of a hollow chamber profile. The first plastic melt is allocated to the first melt-flow duct and to the second melt-flow duct and the second plastic melt is allocated to the third melt-flow duct. During the extrusion the second plastic melt is deposited onto the first plastic melt upstream from or in the region of the branch, and a distribution of the deposited second plastic melt is regulated using the distributing tool. The second melt-flow duct conveying the first plastic melt and the deposited second plastic melt is then merged with the first melt-flow duct in the profiling nozzle, whereupon the first plastic melt from the first melt-flow duct is deposited on the second plastic melt from the second melt flow duct, to sandwich the second plastic melt between two layers of the first plastic melt; and the united plastic melts are shaped to the hollow-chamber profiled panel during ejection from the profiling nozzle.
    • 挤出模具具有分配工具; 型材喷嘴; 和至少三个熔体流动管道; 第一熔体流动管道围绕第二熔体流动管道或分配工具使用分支布置并且再次从分支的下游合并; 并且第三熔体流动管道通向第二熔体流动管道。 挤出模具适合于挤压具有分层结构的热塑性塑料的中空室型面板,其包括第一塑料熔体的顶层和底层; 以及设置在中空室型材内部的第二塑料熔体的中间层。 将第一塑料熔体分配到第一熔体流动管道和第二熔体流动管道,并且将第二塑料熔体分配给第三熔体流动管道。 在挤出期间,将第二塑料熔体沉积到分支上方或上部的第一塑料熔体上,并且使用分配工具调节沉积的第二塑料熔体的分布。 输送第一塑料熔体和沉积的第二塑料熔体的第二熔体流动管道然后与成型喷嘴中的第一熔体流动管道合并,从而来自第一熔体流动管道的第一塑料熔体沉积在第二塑料 从第二熔体流动管道熔化,以将第二塑料熔体夹在两层第一塑料熔体之间; 并且在从成形喷嘴喷射期间,将合并的塑料熔体成形为中空室型面板。
    • 33. 发明授权
    • Multilayer laminate for use in chemical barrier packaging
    • 用于化学屏障包装的多层层压板
    • US06767601B2
    • 2004-07-27
    • US09973644
    • 2001-10-09
    • Frank J. Colombo
    • Frank J. Colombo
    • B32B100
    • B32B27/34B32B15/08B32B27/08Y10T428/13Y10T428/1352Y10T428/31736Y10T428/31743
    • A multilayer laminate suitable for use as a packaging film, more particularly for use as a chemical barrier packaging film, and suitable for packaging products such as motor oils and solvent impregnated cloths. The package is useful in applications which allow users to avoid the need to use spray bottles to dispense solvents, thus protecting users from inhaling hazardous chemicals from the air. The multilayer film comprises an inner layer comprising an unoriented nylon; a middle layer comprising either a polyolefin, a metal foil, or a polyester attached to a surface of the inner layer; and an outer layer comprising either a polyolefin or a polyester attached to a surface of the middle layer; such that when the middle layer comprises a polyolefin, the outer layer comprises a polyester, and when the middle layer comprises a polyester, the outer layer comprises a polyolefin.
    • 适合用作包装膜的多层层压材料,更具体地用作化学屏障包装膜,并且适用于包装机油和溶剂浸渍布的产品。 该包装可用于允许用户避免使用喷雾瓶分配溶剂的应用,从而保护使用者免受空气中的危险化学物质的吸入。多层膜包括包含非取向尼龙的内层; 中间层,其包含连接到内层的表面的聚烯烃,金属箔或聚酯; 以及包含连接到中间层的表面的聚烯烃或聚酯的外层; 使得当中间层包含聚烯烃时,外层包含聚酯,当中间层包含聚酯时,外层包含聚烯烃。