METHODS AND COMPOSITIONS FOR CLEANING POLYMERIZED RESIDUE

    公开(公告)号:US20190316064A1

    公开(公告)日:2019-10-17

    申请号:US16382920

    申请日:2019-04-12

    Abstract: The present disclosure provides methods and compositions for cleaning soils from surfaces of processing equipment. The soils include aqueous based emulsion polymers that need to be removed from associated polymerization processing equipment. The equipment may be used in the production of paint or coating components. A cleaning composition is heated and applied to the equipment to be cleaned. Cleaning of interior surfaces can be performed using clean-in-place methods. The cleaning composition can include combinations of organic solvent, alkanolamine, water, chelating agent, alkali metal hydroxide, or surfactant.

    METHODS FOR COLORIMETRIC ENDPOINT DETECTION AND MULTIPLE ANALYTE TITRATION SYSTEMS

    公开(公告)号:US20190310235A1

    公开(公告)日:2019-10-10

    申请号:US16378714

    申请日:2019-04-09

    Abstract: Systems for quantifying one or more target analyte concentrations in a process solution are provided and can be used, for example, in methods for quantifying a target analyte concentration. These systems and methods include continuous and batchwise automated titration methods that use titration chemistries to measure the target analyte concentration in the process solution using a multiwavelength detector. The methods provide for efficient and robust automated titration methods for a variety of target analytes and can include methods that analyze more than one analyte and that provide for a dynamic range for measurement of more than one target analyte concentration.

    HANDHELD FLUOROMETER
    15.
    发明申请
    HANDHELD FLUOROMETER 审中-公开
    手持式荧光计

    公开(公告)号:US20160097721A1

    公开(公告)日:2016-04-07

    申请号:US14970573

    申请日:2015-12-16

    Abstract: A method of detecting concentration of dipicolinic acid and terbium chloride in a chemical composition with a fluorometer, wherein the fluorometer comprises an excitation source for emitting electromagnetic radiation at one or more wavelengths, and a detector module for detecting fluorescence emitted by dipicolinic acid, emitting electromagnetic radiation from the excitation source at wavelengths that induce fluorescence in dipicolinic acid-terbium chloride combination present in the chemical composition, detecting the fluorescence emitted by the dipicolinic acid-terbium chloride combination via the detector module, and determining the concentration of dipicolinic acid using predetermined relationship between fluorescence emitted and the concentration of dipicolinic acid-terbium chloride combination.

    Abstract translation: 一种利用荧光计检测化学成分中二吡啶甲酸和铽的浓度的方法,其中所述荧光计包括用于发射一个或多个波长的电磁辐射的激发源,以及用于检测由吡啶二酸发射的荧光的检测器模块,发射电磁 在化学组成中存在于二吡啶甲酸 - 铽氯化物组合中诱导荧光的波长处的激发源的辐射,通过检测器模块检测由二吡啶甲酸 - 氯化铽组合发出的荧光,并使用预定关系确定二吡啶甲酸的浓度 荧光发射和二吡啶甲酸 - 铽的组合浓度。

    HANDHELD FLUOROMETER
    16.
    发明申请
    HANDHELD FLUOROMETER 有权
    手持式荧光计

    公开(公告)号:US20160047746A1

    公开(公告)日:2016-02-18

    申请号:US14457573

    申请日:2014-08-12

    Abstract: A fluorometer for measuring fluorescence of a sample includes an excitation source for emitting electromagnetic radiation along a first beam path to induce fluorescence in the sample. An excitation filter transmits electromagnetic radiation from the excitation source toward the sample. An excitation filter holder supports the excitation filter and defines an aperture for passage of electromagnetic radiation from the excitation source. The aperture is positioned asymmetrically relative to the first beam path such that the aperture allows an asymmetrical portion of the electromagnetic radiation in the first beam path to pass toward the sample and the excitation filter holder blocks passage of a corresponding asymmetrical portion of the electromagnetic radiation in the first beam path. The blocked passage of the corresponding asymmetrical portion of the electromagnetic radiation in the first beam path reduces the amount of electromagnetic radiation oriented directly from the emitter module to the detector module.

    Abstract translation: 用于测量样品荧光的荧光计包括用于沿着第一光束路径发射电磁辐射以在样品中诱导荧光的激发源。 激发滤波器将来自激发源的电磁辐射传递给样品。 激励过滤器保持器支撑激励过滤器并且限定用于来自激发源的电磁辐射通过的孔。 孔径相对于第一光束路径不对称地定位,使得孔口允许第一光束路径中的电磁辐射的不对称部分朝向样品传递,并且激发滤光器保持器阻止电磁辐射的对应不对称部分的通过 第一个光束路径。 第一光束路径中电磁辐射的对应不对称部分的阻挡通道减少了从发射器模块直接定向到检测器模块的电磁辐射量。

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