PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE SHEET, AND PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE SEAL TAPE
    1.
    发明申请
    PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE SHEET, AND PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE SEAL TAPE 失效
    聚四氟乙烯片的制造方法和聚四氟乙烯密封带的制造方法

    公开(公告)号:US20120306115A1

    公开(公告)日:2012-12-06

    申请号:US13587381

    申请日:2012-08-16

    IPC分类号: B29C67/24 B29C55/30 B29C53/18

    摘要: Disclosed is a process for production of a polytetrafluoroethylene (PTFE) sheet, which is superior in productivity compared to conventional processes and can reduce the cost of production. Also disclosed is a process for production of a PTFE seal tape. The processes comprise the following steps (i) to (iii): (i) applying a force to a PTFE particle suspension comprising PTFE particles, a surfactant and water (a dispersion medium) so that the particles can come close to each other or contact with each other, thereby forming a PTFE-containing solid material having the water and the surfactant included therein; (ii) shaping the solid material into a sheet-like form; and (iii) reducing the water content in the sheet-like solid material.

    摘要翻译: 公开了一种生产与常规方法相比生产率高的聚四氟乙烯(PTFE)片材的方法,并且可以降低生产成本。 还公开了一种生产PTFE密封带的方法。 该方法包括以下步骤(i)至(iii):(i)向包含PTFE颗粒,表面活性剂和水(分散介质)的PTFE颗粒悬浮液施加力,使得颗粒彼此靠近或接触 从而形成其中包含水和表面活性剂的含PTFE固体材料; (ii)将固体材料成型为片状; 和(iii)降低片状固体材料中的含水量。

    METHOD OF MANUFACTURING POLYTETRAFLUOROETHYLENE PARTICLE AGGREGATE AND METHOD OF MANUFACTURING POLYTETRAFLUOROETHYLENE PRODUCT
    2.
    发明申请
    METHOD OF MANUFACTURING POLYTETRAFLUOROETHYLENE PARTICLE AGGREGATE AND METHOD OF MANUFACTURING POLYTETRAFLUOROETHYLENE PRODUCT 失效
    制备聚四氟乙烯颗粒聚集体的方法和制备聚四氟乙烯产品的方法

    公开(公告)号:US20120101215A1

    公开(公告)日:2012-04-26

    申请号:US13336681

    申请日:2011-12-23

    IPC分类号: C08L27/18

    CPC分类号: C08J5/02 C08J2327/18

    摘要: The present invention provides a method of manufacturing a polytetrafluoroethylene (PTFE) product offering better productivity and a higher degree of flexibility in form of the product to be obtained than the conventional methods of manufacturing a PTFE product, and a method of manufacturing PTFE particle aggregate obtained as an intermediate while manufacturing a PTFE product. According to the manufacturing methods, aggregate of PTFE particles including water and a surfactant is obtained by applying force to a dispersion of PTFE particles containing PTFE particles, a surfactant and water as a dispersion medium, where the force makes the PTFE particles approach or contact with each other. Such a manufacturing method may be carried out, for example, with a chamber (1) shown in FIG. 1.

    摘要翻译: 本发明提供一种制造聚四氟乙烯(PTFE)产品的方法,该方法与常规的PTFE产品的制造方法相比,可以获得更好的生产率和更高的柔性,并且制备PTFE颗粒聚集体的方法 作为中间体,同时制造PTFE产品。 根据制造方法,通过对PTFE颗粒,表面活性剂和水作为分散介质的PTFE颗粒的分散体施加力,获得包含水和表面活性剂的PTFE颗粒,其中所述力使PTFE颗粒接近或接触 彼此。 这种制造方法可以例如利用图1所示的室(1)进行。 1。