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    • 4. 发明申请
    • POLYMER PROCESSING SYSTEMS INCLUDING SCREWS
    • 聚合物加工系统包括螺丝
    • WO2004009320A2
    • 2004-01-29
    • PCT/US2003/022322
    • 2003-07-17
    • TREXEL, INC.
    • XU, JingyiCARDONA, Juan, C.KISHBAUGH, Levi, A.
    • B29C45/00
    • B29C44/3446B29C47/6018B29C47/6025B29C47/6062B29C47/6087B29C2045/1722Y10T29/49716
    • Injection molding and blow molding systems that include screws having low L:D ratios are provided. The systems are capable of producing microcellular polymeric materials. In some cases, the systems may be formed by retrofitting conventional polymer processing systems. Retrofitting may involve changing (e.g., machining or replacing) existing components of the conventional system, as well as, adding new components to the system. For example, retrofitting generally involves replacing the conventional polymer processing screw with a new designed to satisfy conditions needed for processing microcellular materials. In other cases, the systems may be newly manufactured. The retrofitted or newly manufactured systems of the invention are considerably less expensive than newly manufactured microcellular processing systems having higher L:D ratios.
    • 提供了包括具有低L:D比率的螺杆的注射成型和吹塑成型系统。 该系统能够生产微孔聚合物材料。 在一些情况下,系统可以通过改进常规聚合物加工系统而形成。 改装可涉及改变(例如,加工或替换)传统系统的现有组件,以及向系统添加新组件。 例如,改造通常涉及用设计为满足处理微孔材料所需条件的新型设备替换常规聚合物加工螺杆。 在其他情况下,系统可能是新制造的。 本发明的改型或新制造的系统比具有较高L:D比率的新制造的微孔处理系统便宜得多。