Method for preparing filtering material
    1.
    发明授权
    Method for preparing filtering material 有权
    过滤材料的制备方法

    公开(公告)号:US07387700B2

    公开(公告)日:2008-06-17

    申请号:US10473803

    申请日:2002-04-03

    IPC分类号: B32B37/00 B29C65/00

    摘要: A method of manufacturing a filter medium that has a PF value that exceeds 32, the PF value calculated from the pressure loss and the collection efficiency of the filter medium according to the following formula: PF=[−log(permeability (%)/100)/(pressure loss (Pa)]×1000[Formula 1] in which permeability (%)=100−collection efficiency (%). In this method, 380 ml or more of a liquid lubricant at 20° C. is added per 1 kg of a PTFE fine powder, this compound is processed into a tape shape and elongated to obtain a PTFE porous film, and an air permeable support member is heat laminated to at least one surface of the PTFE porous film.

    摘要翻译: 制造PF值超过32的过滤介质的方法,根据压力损失计算的PF值和过滤介质的收集效率根据下式:&lt;&lt; in-line-formula description =“In- PF = [ - log(磁导率(%)/ 100)/(压力损失(Pa)] x1000 [公式1] <?in-line-formula description =“In-line Formulas (%)= 100收集效率(%)的“end =”尾“→>在该方法中,每1kg PTFE细粉末加入20℃下的380ml以上液体润滑剂 ,将该化合物加工成带状并拉长以获得PTFE多孔膜,并且将透气性支撑构件热层压到PTFE多孔膜的至少一个表面上。

    Ventilation filter medium for container, and container and container cap equipped with ventilation filter medium
    4.
    发明授权
    Ventilation filter medium for container, and container and container cap equipped with ventilation filter medium 失效
    用于集装箱的通风过滤介质,以及装有通风过滤介质的集装箱和集装箱盖

    公开(公告)号:US07097682B2

    公开(公告)日:2006-08-29

    申请号:US10491812

    申请日:2002-10-11

    IPC分类号: B01D19/00

    CPC分类号: A01G18/64

    摘要: The present invention provides a culture container and a cap for a container having a ventilation filter medium or a medium similar thereto that can exchange carbon dioxide gas in the culture container with atmospheric air, and prevent the contamination of sterilized culture medium inside the culture container with fungi, mites, and the like. A culture bottle includes a bottle unit, and a cap that is mounted on an opening. The cap includes a cap unit, and a ventilation filter medium. A hole is provided in the cap unit. The ventilation filter medium includes a plurality of micropores having a pore diameter between 0.1 and 50 micrometers, and is mounted on the hole.

    摘要翻译: 本发明提供一种用于容器的培养容器和容器盖,其具有通气过滤介质或类似介质的介质,其可以在大气中与培养容器中的二氧化碳气体交换,并且防止培养容器内的无菌培养基被污染, 真菌,螨类等。 培养瓶包括瓶单元和安装在开口上的盖。 盖包括盖单元和通风过滤介质。 盖单元中设有一个孔。 通气过滤介质包括孔径在0.1和50微米之间的多个微孔,并且安装在孔上。