Device and method for delivering fluid
    1.
    发明授权
    Device and method for delivering fluid 失效
    用于输送流体的装置和方法

    公开(公告)号:US06045055A

    公开(公告)日:2000-04-04

    申请号:US65923

    申请日:1998-04-24

    IPC分类号: A61L9/12

    CPC分类号: A61L9/12

    摘要: The present invention is directed to a device for delivering a fluid to the surrounding environment. The device includes a housing having an interior region and at least one opening, a fluid contained within the interior region, and a device means to force the fluid through the opening, and against gravity. Such a forcing device preferably comprises a gas generating pump, designed to force fluid positioned below the opening through a channel or conduit and out of the housing. Moreover, the opening in the housing may be associated with a member for controllably releasing fluid from the housing, for instance one or more porous plugs, an emanator pad, a decorative element or an adjustable valve. Additionally, the invention contemplates the use of a moveable member, such as a piston, flexible bladder, or expandable bladder, to separate the fluid from the gas generating pump and assist is forcing fluid out of the housing.

    摘要翻译: 本发明涉及一种用于将流体输送到周围环境的装置。 该装置包括壳体,其具有内部区域和至少一个开口,包含在内部区域内的流体以及强制流体穿过开口并且抵抗重力的装置装置。 这种强制装置优选地包括气体发生泵,其被设计成迫使通过通道或导管定位在开口下方的流体并且离开壳体。 此外,壳体中的开口可以与用于可控地从壳体释放流体的构件相关联,例如一个或多个多孔塞,发射器垫,装饰元件或可调节阀。 另外,本发明考虑使用诸如活塞,柔性气囊或可膨胀气囊的可移动构件来分离来自气体发生泵的流体,并且有助于迫使流体离开壳体。

    Controlled release of substances
    2.
    发明授权
    Controlled release of substances 有权
    物质的控制释放

    公开(公告)号:US06419163B1

    公开(公告)日:2002-07-16

    申请号:US09649565

    申请日:2000-08-28

    IPC分类号: A61L900

    摘要: The present invention is directed to a device for releasing a volatile substance. The device includes a housing having an interior region, a volatile substance contained within the interior region, and the ability to controllably release the volatile substance from the housing. Such controllable release can be accomplished by the housing being substantially permeable to ambient air, yet substantially impermeable to the volatile substance contained within the interior region of the housing. Additionally, the invention contemplates the use of one or more porous plugs for diffusing the volatile substance therethrough and eventually into atmosphere in a vapor form. To assist such diffusion, the invention likewise contemplates the use of an electrochemical gas generating cell, a heating element and/or other features which allow air to controllably enter into the interior region of the housing.

    摘要翻译: 本发明涉及一种用于释放挥发性物质的装置。 该装置包括具有内部区域,包含在内部区域内的挥发性物质以及从壳体中可控地释放挥发性物质的能力的壳体。 这种可控制的释放可以通过壳体基本上可透过环境空气而实现,但是对于容纳在壳体的内部区域内的挥发性物质基本上不可渗透。 此外,本发明考虑使用一个或多个多孔塞将挥发性物质扩散通过其中并最终以蒸汽形式进入大气。 为了帮助这种扩散,本发明同样考虑了使用电化学气体发生电池,加热元件和/或允许空气可控地进入壳体的内部区域的其它特征。

    PROCESS FOR PRODUCING BISPHENOL A WITH REDUCED SULFUR CONTENT, POLYCARBONATE MADE FROM THE BISPHENOL A, AND CONTAINERS FORMED FROM THE POLYCARBONATE
    6.
    发明申请
    PROCESS FOR PRODUCING BISPHENOL A WITH REDUCED SULFUR CONTENT, POLYCARBONATE MADE FROM THE BISPHENOL A, AND CONTAINERS FORMED FROM THE POLYCARBONATE 有权
    用于生产具有降低的硫含量的二苯醚A的方法,来自二苯醚A的聚碳酸酯和由聚碳酸酯形成的容器

    公开(公告)号:US20130108820A1

    公开(公告)日:2013-05-02

    申请号:US13660195

    申请日:2012-10-25

    IPC分类号: C07C37/68

    摘要: In one embodiment, a process for producing a bisphenol A product comprises: reacting phenol with acetone in the presence of a sulfur containing promoter to obtain a reaction mixture comprising bisphenol A, phenol, and the promoter; after reacting the phenol with the acetone, cooling to form a crystal stream comprising crystals of bisphenol A and phenol; separating the crystals from the crystal steam; melting the crystals to form a molten stream of bisphenol A, phenol, and sulfur; contacting the molten stream with a base to reduce a sulfur concentration in the molten stream and form a reduced sulfur stream; and removing phenol from the reduced sulfur stream to form a bisphenol A product. Also disclosed herein is a container comprising: a polycarbonate formed from a bisphenol A having a sulfur concentration of 0.5 to 15 ppm based upon the weight of the bisphenol A.

    摘要翻译: 在一个实施方案中,制备双酚A产物的方法包括:在含硫促进剂存在下使苯酚与丙酮反应,得到包含双酚A,苯酚和助催化剂的反应混合物; 在苯酚与丙酮反应后,冷却以形成包含双酚A和苯酚晶体的晶体流; 将晶体与晶体蒸汽分离; 熔化晶体以形成双酚A,苯酚和硫的熔融流; 使熔融流与碱接触以降低熔融流中的硫浓度并形成还原硫流; 并从还原的硫物流中除去苯酚以形成双酚A产物。 本文还公开了一种容器,其包含:基于双酚A的重量,由双酚A形成的聚碳酸酯,其具有0.5至15ppm的硫浓度。