Process and apparatus for optical recording of motions and states in
ultracentrifuges in multi-cell operation
    3.
    发明授权
    Process and apparatus for optical recording of motions and states in ultracentrifuges in multi-cell operation 失效
    用于多单元操作的超离心机的运动和状态的光学记录的方法和装置

    公开(公告)号:US4202632A

    公开(公告)日:1980-05-13

    申请号:US846331

    申请日:1977-10-28

    CPC classification number: G01N21/07 B04B13/00

    Abstract: A method of measurement for analytical ultracentrifuges with a multi-cell rotor and with simultaneous measurement of several cells, in which light pulses of constant energy are passed, independently of the rotor speed, through individual selectable measuring cells in the entire speed range and in which these light pulses can be provided either by a controlled laser beam or a controlled Kerr cell or a controlled gas discharge lamp.

    Abstract translation: 一种用于具有多单元转子的分析超速离心机的测量方法,并且同时测量几个单元,其中恒定能量的光脉冲独立于转子速度通过各个可选择的测量单元在整个速度范围内通过,并且其中 这些光脉冲可以由受控的激光束或受控的克尔单元或受控气体放电灯提供。

    Preparation of an aqueous polymer dispersion
    6.
    发明授权
    Preparation of an aqueous polymer dispersion 失效
    聚合物水分散体的制备

    公开(公告)号:US5430092A

    公开(公告)日:1995-07-04

    申请号:US202460

    申请日:1994-02-28

    CPC classification number: C08F291/00

    Abstract: In a process for preparing a final aqueous polymer dispersion having a solids volume concentration of 50% by volume or more, free-radically polymerizable monomers other than vinyl or vinylidene halides are subjected to a free radical aqueous emulsion polymerization by the feed stream addition process in the presence of an aqueous starting polymer dispersion whose dispersed starting polymer particles have a certain minimum diameter.

    Abstract translation: 在制备固体体积浓度为50体积%以上的最终含水聚合物分散体的方法中,除了乙烯基或亚乙烯基卤化物之外的可自由基聚合的单体通过进料流添加方法进行自由基水乳液聚合 其分散的起始聚合物颗粒具有一定最小直径的起始聚合物水分散体水溶液的存在。

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