Method and apparatus for determining the environmental stress crack
resistance of plastic articles
    2.
    发明授权
    Method and apparatus for determining the environmental stress crack resistance of plastic articles 失效
    用于确定塑料制品的环境应力抗裂性的方法和装置

    公开(公告)号:US5001935A

    公开(公告)日:1991-03-26

    申请号:US485585

    申请日:1990-02-27

    摘要: A method and apparatus for determining the environmental stress crack resistance of plastic articles, such as polyethylene terephthalate containers, are provided. In accordance with the method of the invention, the internal chamber of a hollow plastic article is pressurized, the exterior of the base is then exposed to an environmental stress cracking agent, and it is then determined if crazing and/or changes in the base clearance of the plastic article have occurred. Subsequent increases in pressure and subsequent exposures and determinations yield information on the environmental stress cracking characteristics of the container.

    摘要翻译: 提供了一种用于确定诸如聚对苯二甲酸乙二醇酯容器之类的塑料制品的耐环境应力开裂性的方法和装置。 根据本发明的方法,中空塑料制品的内部腔室被加压,然后将底部的外部暴露于环境应力开裂剂,然后确定是否裂缝和/或底座间隙的变化 的塑料制品已经发生。 随后的压力增加和随后的暴露和测定产生关于容器的环境应力开裂特性的信息。

    PASTED ZINC ELECTRODE FOR RECHARGEABLE NICKEL-ZINC BATTERIES
    7.
    发明申请
    PASTED ZINC ELECTRODE FOR RECHARGEABLE NICKEL-ZINC BATTERIES 有权
    用于可充电镍镍电池的压电锌电极

    公开(公告)号:US20100291439A1

    公开(公告)日:2010-11-18

    申请号:US12467993

    申请日:2009-05-18

    摘要: Active material for a negative electrode of a rechargeable zinc alkaline electrochemical cell is made with zinc metal particles coated with tin and/or lead. The zinc particles may be coated by adding lead and tin salts to a slurry containing zinc particles, a thickening agent and water. The remaining zinc electrode constituents such as zinc oxide (ZnO), bismuth oxide (Bi2O3), a dispersing agent, and a binding agent such as Teflon are then added. The resulting slurry/paste has a stable viscosity and is easy to work with during manufacture of the zinc electrode. Further, the zinc electrode is much less prone to gassing when cobalt is present in the electrolyte. Cells manufactured from electrodes produced in accordance with this invention exhibit much less hydrogen gassing, by as much as 60-80%, than conventional cells. The cycle life and shelf life of the cells is also enhanced, as the zinc conductive matrix remains intact and shelf discharge is reduced.

    摘要翻译: 可充电锌碱性电化学电池的负极的活性材料由涂覆有锡和/或铅的锌金属颗粒制成。 可以通过向含有锌颗粒,增稠剂和水的浆料中加入铅和锡盐来涂覆锌颗粒。 然后加入剩余的锌电极成分如氧化锌(ZnO),氧化铋(Bi 2 O 3),分散剂和粘结剂如特氟纶。 所得到的浆料/糊料具有稳定的粘度,并且在锌电极的制造过程中易于加工。 此外,当电解质中存在钴时,锌电极容易发生气体渗透。 从根据本发明生产的电极制造的电池比常规电池表现出少得多的氢气,多达60-80%。 电池的循环寿命和保质期也得到提高,因为锌导电基体保持完整,降低了放电。

    Inverted closures for beverage containers
    8.
    发明授权
    Inverted closures for beverage containers 失效
    饮料容器倒盖

    公开(公告)号:US5147057A

    公开(公告)日:1992-09-15

    申请号:US599501

    申请日:1990-10-18

    IPC分类号: B65D17/34 B65D47/36

    CPC分类号: B65D47/36 B65D2231/02

    摘要: A single service container having a closure cap with a recessed portion extending generally interiorly of said container. A tab is defined by a score line which, upon deflection of a an actuating member on the cap, substantially separates from the remainder of the recessed portion forming an opening in the cap. Once the tab has been separated, it is deflected through the opening and prevented from obstructing the opening by the actuating member being positioned in an interference relationship between the interior of the container, adjacent the opening, and the tab.

    摘要翻译: 具有封闭帽的单一服务容器,其具有大致在所述容器内部延伸的凹部。 一个拉片由一个刻痕线限定,该刻痕线在帽上的致动件偏转时基本上与形成盖中的开口的凹陷部分的其余部分分离。 一旦突片已经分离,其被偏转穿过开口并且被防止由致动构件阻挡开口的位置处于与容器的内部相邻的开口处的突出部之间的干涉关系。