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    • 7. 发明授权
    • Synthetic closure and manufacturing process thereof
    • 合成封闭及其制造工艺
    • US06733706B2
    • 2004-05-11
    • US10066104
    • 2001-10-29
    • Michael AllmanEduardo Lauer
    • Michael AllmanEduardo Lauer
    • B29C4402
    • B29C47/126B29C47/0009B65D39/00B65D39/0011Y10T428/1376Y10T428/24802Y10T428/249953Y10T428/249977Y10T428/249986
    • A plastic foamed synthetic closure for use with liquid bearing containers which closely simulates natural cork products is realized by incorporating color concentrates into the polymer melt and forming the color concentrates into elongated streaks. The desired emulation is further enhanced by arcuately pivoting the foamed plastic material during the production to form curved or sinusoidal-shaped streaks. This invention also provides manufacturing methods for mass producing individual products in a continuous motion casting system wherein fully complete products are formed in polymer casting members, which receive foam material exiting from the die and allow the foamed material to be formed in a continuous operation in the casting members. Finally, the present invention also teaches a unique system for maintaining and delivering carbon dioxide in its supercritical phase for use as a blowing agent.
    • 用于密封模拟天然软木产品的液体承载容器的塑料发泡合成盖通过将颜色浓缩物结合到聚合物熔体中并将颜色浓缩物形成细长条纹来实现。 通过在生产过程中弧形旋转泡沫塑料材料以形成弯曲或正弦形条纹进一步增强了所需的仿真。 本发明还提供了在连续运动铸造系统中批量生产各种产品的制造方法,其中完全完整的产品形成在聚合物铸造件中,其接收从模具出来的泡沫材料,并允许泡沫材料在连续操作中形成 铸造成员。 最后,本发明还教导了用于维持和输送其超临界相中二氧化碳作为发泡剂的独特系统。