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    • 2. 发明申请
    • METHOD OF PREPARING VEHICLE DOOR PANELS
    • 制造车门面板的方法
    • WO2004067304A2
    • 2004-08-12
    • PCT/US2004/000845
    • 2004-01-14
    • DOW GLOBAL TECHNOLOGIES, INC.MAURER, Myron, J.ROGERS, Steve, J.TUSIM, Martin, H.
    • MAURER, Myron, J.ROGERS, Steve, J.TUSIM, Martin, H.
    • B60J
    • B60R21/04B29C43/18B29C2043/3433B29K2105/26B29L2031/3005B29L2031/3014B60R2021/0414
    • Composite structural parts such as energy-absorbing automotive parts are made by inserting a thermoplastic energy-absorbing component into a mold, injecting a substrate polymer into the mold, and molding the energy-absorbing component and the substrate polymer to form a composite in which the substrate polymer is affixed to the energy-absorbing component without use of an intervening adhesive, and the structure of the energy-absorbing component is substantially preserved. The parts are made without secondary foam tooling, and thus can be produced at lower cost. In preferred embodiments, the substrate polymer and the energy-absorbing component are made from the same polymeric material, or different polymeric materials that are classified the same for recycling purposes. This allows scrap, used and damaged parts to be recycled without the need to separate them into their component parts.
    • 通过将热塑性吸收能量成分插入到模具中,将基材聚合物注入到模具中,并且将能量吸收组分和基材聚合物模制成复合材料制成复合结构部件,例如吸收能量的汽车部件,其中 基材聚合物固定在能量吸收组分上而不使用中间粘合剂,并且能量吸收组分的结构基本上被保留。 这些部件没有二次泡沫模具制造,因此可以以较低的成本生产。 在优选的实施方案中,基材聚合物和能量吸收组分由相同的聚合物材料或被分类为用于回收目的的不同聚合物材料制成。 这样可以将废料,使用和损坏的零件进行回收,而无需将它们分离成其组成部件。