Method for evaluating cation-exchange resin and method for controlling water treatment system using the same
    1.
    发明授权
    Method for evaluating cation-exchange resin and method for controlling water treatment system using the same 有权
    阳离子交换树脂的评价方法及使用该阳离子交换树脂的水处理系统的控制方法

    公开(公告)号:US07357871B2

    公开(公告)日:2008-04-15

    申请号:US10520233

    申请日:2003-05-12

    IPC分类号: B01D15/04

    CPC分类号: C02F1/42 B01J39/05 B01J47/14

    摘要: A method for a cation-exchange resin wherein a strongly acidic cation-exchange resin is contacted with an aqueous eluting solution and the polystyrenesulfonic acid being eluted from this resin is measured, which comprises setting a plurality of molecular weight ranges in the molecular weight distribution of the polystyrenesulfonic acid eluted, and evaluating the performance capability of the cation-exchange resin based on the correspondence relationship of each molecular weight range with the amount eluted in said each molecular weight range. The evaluation method allows on-target and precise evaluation of the performance capability of a cation-exchange resin being independent of the structure of a base resin and the circumstance under which it is used, which leads to the determination of the optimum time for the exchange of a resin in a water treatment system using a cation-exchange resin, and thus to the extension of exchange of a resin and the reduction of an operation cost for the system.

    摘要翻译: 一种阳离子交换树脂的方法,其中测量强酸性阳离子交换树脂与水洗脱溶液接触,并从该树脂洗脱出聚苯乙烯磺酸,其包括设定多个分子量范围的分子量分布 洗脱聚苯乙烯磺酸,并根据每个分子量范围的对应关系与在每个分子量范围内洗脱的量对阳离子交换树脂的性能进行评价。 评价方法允许对阳离子交换树脂的性能能力进行目标和精确评估,而不依赖于基础树脂的结构和使用它的环境,这导致了交换的最佳时间的确定 的树脂在使用阳离子交换树脂的水处理系统中,从而延长树脂的交换和降低系统的操作成本。

    High-sensitivity measuring instrument and method of using the instrument to measure a characteristic value at a point in time
    2.
    发明授权
    High-sensitivity measuring instrument and method of using the instrument to measure a characteristic value at a point in time 有权
    高灵敏度测量仪器和使用仪器在某个时间点测量特征值的方法

    公开(公告)号:US07154274B2

    公开(公告)日:2006-12-26

    申请号:US10508225

    申请日:2003-03-19

    IPC分类号: G01N27/02

    CPC分类号: G01N27/06

    摘要: A high-sensitivity measuring instrument comprising at least two sensors for detecting the same characteristics by touching a substance being measured with a specified time difference, wherein the between detection signals taken out simultaneously from respective sensors is determined, the difference between characteristic values upon elapsing the specified time difference is determined from the difference between detection signals, a reference time of measurement and a reference characteristic value at that time are preset, a time axis having a time pitch of a specified time difference is set, and a measurement value is obtained at a point in time elapsing an arbitrary time pitch from the reference time. Objective measurement characteristics can be detected by the measuring instrument not in the form of difference or variation but as an absolute value with high accuracy and sensitivity.

    摘要翻译: 一种高灵敏度测量仪器,包括至少两个传感器,用于通过以指定的时间差触摸被测量的物质来检测相同的特性,其中确定从各个传感器同时取出的检测信号之间的差值, 根据检测信号之间的差异来确定规定的时间差,测量的基准时间和此时的基准特性值被预先设定为具有指定时间间隔的时间间隔的时间轴,并且在 从参考时间经过一个任意时间间隔的时间点。 客观测量特性可以通过测量仪器检测,不是以差异或变化的形式,而是以高精度和高灵敏度的绝对值。

    Polymeric conjugate of methotrexate compound and pyran copolymer and
method for the preparation thereof
    5.
    发明授权
    Polymeric conjugate of methotrexate compound and pyran copolymer and method for the preparation thereof 失效
    甲氨蝶呤化合物和吡喃共聚物的聚合物缀合物及其制备方法

    公开(公告)号:US5401742A

    公开(公告)日:1995-03-28

    申请号:US214467

    申请日:1994-03-18

    CPC分类号: A61K47/48192

    摘要: Methotrexate, which is a known anticancer agent, can be converted into a polymeric conjugate with a pyran copolymer, which in itself has a certain anticancer effect, by a method in which an alkylene diamine is reacted with the carboxyl group of the methotrexate molecule to give an amidation product having a free amino group in a molecule, which is then reacted with the carboxyl group of the pyran copolymer, of which at least 10% of the repeating units have been modified with the methotrexate residue. The polymeric conjugate has sustained releasability of the methotrexate compound in blood serum so that an excellent therapeutic effect can be obtained by the administration thereof against cancers with little problems due to the side effects caused by an unduly high concentration of the drug in blood unavoidable when methotrexate as such is administrated.

    摘要翻译: 通过使亚烷基二胺与甲氨蝶呤分子的羧基反应而得到的方法,可以将已知抗癌剂的甲氨蝶呤与吡喃共聚物转化为本身具有一定抗癌作用的聚合物, 分子中具有游离氨基的酰胺化产物,然后与吡喃共聚物的羧基反应,其中至少10%的重复单元已被甲氨蝶呤残基修饰。 聚合物缀合物具有甲氨蝶呤化合物在血清中具有持续的释放性,因此,由于由于甲氨蝶呤中不可避免的血液中药物浓度过高而引起的副作用,因此通过对癌症给药而获得优异的治疗效果 因此被管理。

    Process for preparation of thermoplastic resin sheets
    7.
    发明授权
    Process for preparation of thermoplastic resin sheets 失效
    热塑性树脂片的制备方法

    公开(公告)号:US4997600A

    公开(公告)日:1991-03-05

    申请号:US356269

    申请日:1989-05-23

    IPC分类号: B29C47/88 B29L7/00

    摘要: A thermoplastic sheet is prepared by (i) extruding a molten thermoplastic resin in the form of a sheet from a molding die; (ii) applying static charges to the extruded resin sheet from a first electrode whereby the charged resin sheet is pinned to the surface of an electrical insulating layer of a quenching roller to quench the resin sheet; (iii) peeling the quenched sheet from the surface of the quenching roller; and (v) applying electrostatic charges having a reverse polarity to that of the electrostatic charges from the first electrode to the exposed surface portion of the quenching roller from a second electrode. The quenching roller is made of an electrically earthed substrate and the electrical insulating layer formed on the surface of the substrate. The second electrode is made of a plurality of electrodes arranged at intervals along the rotating direction of the quenching roller between the sheet-peeling position where the quenched sheet is peeled from the quenching roller and the sheet pinning-initiating position where the sheet to be quenched is pinned to the quenching roller, and the electrical insulating layer has a volume resistance and surface resistance of at least 10.sup.7 .OMEGA. and a surface roughness not larger than 0.3 .mu.m expressed as the center line average roughness (Ra).

    METHOD AND APPARATUS FOR TREATMENT OF AN EFFLUENT CONTAINING RADIOACTIVE MATERIALS
    9.
    发明申请
    METHOD AND APPARATUS FOR TREATMENT OF AN EFFLUENT CONTAINING RADIOACTIVE MATERIALS 有权
    用于处理含放射性物质的液体的方法和装置

    公开(公告)号:US20080156735A1

    公开(公告)日:2008-07-03

    申请号:US11851198

    申请日:2007-09-06

    IPC分类号: G21F9/12 B01D15/04

    摘要: A method and apparatus for treating an effluent containing radioactive materials: wherein an oxidizing agent is added to an effluent containing radioactive materials, and the effluent including the oxidizing agent is filtered with a filtration film to obtain filtrated water; and the filtrated water is filtered through activated carbon; and the filtered water filtered by the activated carbon is filtered through at least one of an ion-exchanger and reverse osmosis membrane.

    摘要翻译: 一种用于处理含有放射性物质的流出物的方法和装置,其中向含有放射性物质的流出物中加入氧化剂,并用过滤膜过滤含有氧化剂的流出物,得到过滤水; 过滤后的水通过活性炭过滤; 并且通过活性炭过滤的过滤水通过离子交换和反渗透膜中的至少一种过滤。

    Method for evaluating cation-exchange resin and method for controlling water treatment system using the same
    10.
    发明申请
    Method for evaluating cation-exchange resin and method for controlling water treatment system using the same 有权
    阳离子交换树脂的评价方法及使用该阳离子交换树脂的水处理系统的控制方法

    公开(公告)号:US20060032818A1

    公开(公告)日:2006-02-16

    申请号:US10520233

    申请日:2003-05-12

    IPC分类号: B01J39/00

    CPC分类号: C02F1/42 B01J39/05 B01J47/14

    摘要: A method for evaluating a strongly acidic cation-exchange resin wherein said strongly acidic cation-exchange resin is contacted with an aqueous eluting solution and polystyrenesulfonic acid being eluted from this resin is measured, which comprises the steps of setting a plurality of molecular weight ranges in the molecular weight distribution of the polystyrenesulfonic acid eluted, and evaluating the performance of the cation-exchange resin based on the relationship of each molecular weight range with the amount eluted in said each molecular weight range. The evaluation method allows precise evaluation of the performance of a cation-exchange resin independently of the structure of the resin matrix and the circumstance under which it is used, which leads to the determination of an optimum timing for replacement of a resin in a water treatment system using a cation-exchange resin, and thus to the extension of an replacement cycle of the resin and the reduction of an operation cost for the system.

    摘要翻译: 测定强酸性阳离子交换树脂的方法,其中所述强酸性阳离子交换树脂与水性洗脱溶液接触,并且从该树脂洗脱出聚苯乙烯磺酸,其包括以下步骤:设定多个分子量范围 洗脱聚苯乙烯磺酸的分子量分布,根据各分子量范围与所述各分子量范围内洗脱量的关系,评价阳离子交换树脂的性能。 该评价方法能够与树脂基体的结构和使用的环境无关地对阳离子交换树脂的性能进行精确评价,从而能够确定水处理中的树脂的更换的最佳时机 系统使用阳离子交换树脂,从而延长树脂的更换周期并降低系统的操作成本。