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    Reducing molecular weight distribution of polyether glycols by short-path distillation
    2.
    发明授权
    Reducing molecular weight distribution of polyether glycols by short-path distillation 失效
    通过短路蒸馏降低聚醚二醇的分子量分布

    公开(公告)号：US5282929A

    公开(公告)日：1994-02-01

    申请号：US944995

    申请日：1992-09-15

    Applicant: Suriyanarayan Dorai ,  Frank L. Rawling, Jr. ,  James A. Schultz

    Inventor： Suriyanarayan Dorai ,  Frank L. Rawling, Jr. ,  James A. Schultz

    IPC: B01D3/12 ,  C08G18/48 ,  C08G65/02 ,  C08G65/20 ,  C08G65/30 ,  B01D3/10 ,  C07C41/38

    CPC classification number: B01D3/12 ,  C08G18/4854 ,  C08G65/20 ,  C08G65/30 ,  Y10S159/16

    Abstract: Polyether glycols, especially poly(tetramethylene ether) glycol (PTMEG) having a narrow molecular weight distribution of about 1.90 to 2.07, or dispersity of 1.50 to 1.90, are made by a process wherein the low molecular weight fraction in unit operations using at least one short-path distillation evaporator. In these units, PTMEG is subjected to temperatures in the range of 150.degree.-190.degree.C. with the hold-up time varying between 10-200 seconds. The required vacuum to force the separation of the low molecular weight PTMEG varies between 0.001 mm and 1.0 mbar. PTMEG residue from the distillation unit is also characterized by its low water content and low concentration of oligomeric cyclic ethers.

    Abstract translation: 具有约1.90-2.07的窄分子量分布或1.50至1.90的分散性的聚醚二醇，尤其是聚（四亚甲基醚）二醇（PTMEG）是通过一种方法制备的，其中使用至少一种 短路蒸馏蒸发器。 在这些单元中，PTMEG经受在150度-190摄氏度范围内的温度。 保持时间在10-200秒之间变化。 强制分离低分子量PTMEG所需的真空度在0.001毫米至1.0毫巴之间变化。 来自蒸馏单元的PTMEG残余物的特征还在于其低含水量和低浓度的低聚环醚。

    Purification of fluoroalkanesulfonate salts
    4.
    发明授权
    Purification of fluoroalkanesulfonate salts 有权
    氟烷基磺酸盐的纯化

    公开(公告)号：US08461378B2

    公开(公告)日：2013-06-11

    申请号：US12879553

    申请日：2010-09-10

    Applicant: Allen Capron Sievert ,  Lee Grant Sprague ,  James A. Schultz ,  Katelyn Rae Walck

    Inventor： Allen Capron Sievert ,  Lee Grant Sprague ,  James A. Schultz ,  Katelyn Rae Walck

    IPC: C07C309/10

    CPC classification number: C07C303/44 ,  C07C309/06

    Abstract: A process for the purification of fluoroalkanesulfonate salt comprising (a) contacting a mixture of said salt and an inorganic salt contaminant with a solvent to selectively dissolve said fluoroalkanesulfonate salt in solution, and (b) isolating the solution, to yield a fluoroalkanesulfonate salt containing less than 500 micrograms of inorganic salt contaminant per gram of fluoroalkanesulfonate salt, or containing less than a maximum of 0.3% by weight of individual solvent.

    Abstract translation: 一种用于纯化氟烷基磺酸盐的方法，包括（a）将所述盐和无机盐污染物的混合物与溶剂接触以选择性地溶解溶液中的所述氟代烷基磺酸盐，和（b）分离溶液，得到含有较少量的氟代烷基磺酸盐 超过500微克无机盐污染物/克氟烷基磺酸盐，或含有少于最多0.3重量％的单一溶剂。

    PURIFICATION OF FLUOROALKANESULFONATE SALTS
    5.
    发明申请
    PURIFICATION OF FLUOROALKANESULFONATE SALTS 有权
    氟烷基磺酸盐的纯化

    公开(公告)号：US20120065425A1

    公开(公告)日：2012-03-15

    申请号：US12879553

    申请日：2010-09-10

    Applicant: ALLEN CAPRON SIEVERT ,  LEE GRANT SPRAGUE ,  JAMES A. SCHULTZ ,  KATELYN RAE WALCK

    Inventor： ALLEN CAPRON SIEVERT ,  LEE GRANT SPRAGUE ,  JAMES A. SCHULTZ ,  KATELYN RAE WALCK

    IPC: C07C309/65

    CPC classification number: C07C303/44 ,  C07C309/06

    Abstract: A process for the purification of fluoroalkanesulfonate salt comprising (a) contacting a mixture of said salt and an inorganic salt contaminant with a solvent to selectively dissolve said fluoroalkanesulfonate salt in solution, and (b) isolating the solution, to yield a fluoroalkanesulfonate salt containing less than 500 micrograms of inorganic salt contaminant per gram of fluoroalkanesulfonate salt, or containing less than a maximum of 0.3% by weight of individual solvent.

    Abstract translation: 一种用于纯化氟烷基磺酸盐的方法，包括（a）将所述盐和无机盐污染物的混合物与溶剂接触以选择性地溶解溶液中的所述氟代烷基磺酸盐，和（b）分离溶液，得到含有较少量的氟代烷基磺酸盐 超过500微克无机盐污染物/克氟烷基磺酸盐，或含有少于最多0.3重量％的单一溶剂。

    Device for tracing electrical cable
    7.
    发明授权
    Device for tracing electrical cable 失效
    用于跟踪电缆的装置

    公开(公告)号：US06963192B2

    公开(公告)日：2005-11-08

    申请号：US10277085

    申请日：2002-10-22

    Applicant: James A. Schultz

    Inventor： James A. Schultz

    IPC: G01R31/02 ,  H04M1/24 ,  H04M3/22 ,  G01R19/00

    CPC classification number: H04M3/229 ,  G01R31/021 ,  H04M1/24

    Abstract: A device for tracing electrical cable. The device allows a cable installer or service person not only to identify one wire or cable in a group, but to simultaneously remotely identify as many cables as he desires. The device requires only that the installer connect a test device to each of the cables which he wishes to identify. Additionally, this identification is extremely easy to accomplish, as the “Identifying label” is in the installers own spoken words, and can be heard at the remote end by using existing industry standard test equipment (i.e.: an installer's test set, phone, headset, or amplified probe).

    Abstract translation: 用于跟踪电缆的设备。 该设备允许电缆安装人员或服务人员不仅可以识别一个组中的一根电线或电缆，而且可以同时远程识别所需的电缆数量。 该设备仅需要安装者将测试设备连接到他希望识别的每根电缆。 另外，这种识别是非常容易完成的，因为“识别标签”在安装者自己的口语中，并且可以通过使用现有的行业标准测试设备（即：安装者的测试集，电话，耳机）在远程端听到 ，或扩增探针）。

    Reducing molecular weight distribution of polyether glycols by short-path distillation
    8.
    发明授权
    Reducing molecular weight distribution of polyether glycols by short-path distillation 失效
    通过短路蒸馏降低聚醚二醇的分子量分布

    公开(公告)号：US5302255A

    公开(公告)日：1994-04-12

    申请号：US944994

    申请日：1992-09-15

    Applicant: Suriyanarayan Dorai ,  Frank L. Rawling, Jr. ,  James A. Schultz

    Inventor： Suriyanarayan Dorai ,  Frank L. Rawling, Jr. ,  James A. Schultz

    IPC: B01D3/12 ,  C08G18/48 ,  C08G65/02 ,  C08G65/20 ,  C08G65/30 ,  B01D1/22 ,  B01D3/10 ,  C07C41/38

    CPC classification number: B01D3/12 ,  C08G18/4854 ,  C08G65/20 ,  C08G65/30 ,  Y10S159/16

    Abstract: Polyether glycols, especially poly(tetramethylene ether) glycol (PTMEG) having a narrow molecular weight distribution of about 1.25 to 1.80, or dispersity of 1.05 to 1.90, are made by a process involving distilling the low molecular weight fraction in unit operations including at least one short-path distillation evaporator. Two short-path distillation evaporators, in series, are desirable if significant narrowing of the PTMEG is required. In these units, PTMEG is subjected to temperatures in the range of 270.degree.-400.degree. C. with the hold-up time varying between 10-200 seconds. The required vacuum to force the separation of the low molecular weight PTMEG varies between 0.001 mm and 1.0 mbar. PTMEG residue from the distillation unit is also characterized by its low water content and low concentration of oligomeric cyclic ethers.

    Abstract translation: 具有约1.25至1.80的窄分子量分布或1.05至1.90的分子量的聚醚二醇，特别是聚（四亚甲基醚）二醇（PTMEG）是通过包括在单元操作中蒸馏低分子量级分的方法制备的，包括至少 一个短路蒸馏蒸发器。 如果需要PTMEG的显着变窄，则需要两个串联的短路蒸馏蒸发器。 在这些单元中，PTMEG的温度在270-400摄氏度的范围内，保持时间在10-200秒之间变化。 强制分离低分子量PTMEG所需的真空度在0.001毫米至1.0毫巴之间变化。 来自蒸馏单元的PTMEG残余物的特征还在于其低含水量和低浓度的低聚环醚。

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