Bonding unsintered non-expanded PTFE film to PTFE coated substrate
    65.
    发明申请
    Bonding unsintered non-expanded PTFE film to PTFE coated substrate 失效
    将未烧结的未膨胀PTFE膜粘结到PTFE涂覆的基材上

    公开(公告)号:US20040261929A1

    公开(公告)日:2004-12-30

    申请号:US10840572

    申请日:2004-05-06

    IPC分类号: B65B001/00

    摘要: A method of bonding an unsintered unexpanded PTFE feed film to a flexible PTFE coated substrate comprises providing a three roll calender comprising a metal surfaced roll coacting with two filled rolls to define first and second nips. The PTFE feed film is calendered in the first nip, with the thus calendered PTFE film remaining supported on the metal surfaced roll for transport to and through the second nip. The PTFE coated substrate is directed through the second nip for calendering with and bonding to the calendered PTFE film to thereby produce a laminated composite.

    摘要翻译: 将未烧结的未膨胀的PTFE进料膜粘合到柔性PTFE涂覆的基材上的方法包括提供三辊压延机,其包括与两个填充的辊共同作用的金属表面辊,以限定第一和第二辊隙。 PTFE进料薄膜在第一压区中压延,因此压延的PTFE薄膜保持支撑在金属表面的辊上,以便运送到第二压区。 PTFE涂覆的基材被引导通过第二辊隙,用于压延并与压延的PTFE膜结合,从而产生层压复合材料。

    Method of manufacturing container covers
    66.
    发明申请
    Method of manufacturing container covers 审中-公开
    制造容器盖的方法

    公开(公告)号:US20040256051A1

    公开(公告)日:2004-12-23

    申请号:US10865026

    申请日:2004-06-10

    摘要: Disposable polymeric container covers, methods of manufacturing the same, and machines for manufacturing the same are disclosed wherein the cover may include a polymer film adapted to enclose a bowl or the like, and an elastic film proximate thereto adapted to seal the cover against the bowl. The elastic film may be provided as an annular member completely surrounding the bowl, or in segments around an otherwise non-elastic ring. The method may include co-extruding the elastic with the non-elastic polymer, or stamping the elastic and non-elastic polymers as separate pieces and then heat sealing them together.

    摘要翻译: 公开了一次性聚合物容器盖及其制造方法,以及用于制造其的机器,其中所述盖可以包括适于包围碗等的聚合物膜,以及靠近其的弹性膜适于将盖密封在碗上 。 弹性膜可以设置为完全围绕碗的环形构件,或者围绕其他非弹性环的节段。 该方法可以包括将弹性体与非弹性聚合物共挤出,或者将弹性和非弹性聚合物冲压成单独的片,然后将它们热封在一起。