公开(公告)号：US20120306115A1

公开(公告)日：2012-12-06

申请号：US13587381

申请日：2012-08-16

申请人： Takashi WANO ,  Yozo NAGAI ,  Yuri HORIE ,  Atsushi TANAKA ,  Osamu TABEI

发明人： Takashi WANO ,  Yozo NAGAI ,  Yuri HORIE ,  Atsushi TANAKA ,  Osamu TABEI

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

CPC分类号： B29C55/005 ,  B29C47/0004 ,  B29C47/0021 ,  B29C67/06 ,  B29K2027/18 ,  B29K2105/256 ,  C08J5/18 ,  C08J2327/18

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。

公开(公告)号：US20120101215A1

公开(公告)日：2012-04-26

申请号：US13336681

申请日：2011-12-23

申请人： Takashi WANO ,  Yuri HORIE ,  Atsushi TANAKA ,  Osamu TABEI ,  Yozo NAGAI

发明人： Takashi WANO ,  Yuri HORIE ,  Atsushi TANAKA ,  Osamu TABEI ,  Yozo NAGAI

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。