METHODS AND COMPOSITIONS FOR DRYING IN THE PREPARATION OF RADIOPHARMACEUTICALS
    1.
    发明申请
    METHODS AND COMPOSITIONS FOR DRYING IN THE PREPARATION OF RADIOPHARMACEUTICALS 审中-公开
    用于干燥放射性核素制备的方法和组合物

    公开(公告)号:US20130022525A1

    公开(公告)日:2013-01-24

    申请号:US13550188

    申请日:2012-07-16

    IPC分类号: C01B7/00 C09K3/00

    CPC分类号: C07B59/00

    摘要: A method of drying a radioisotope solution having radioisotopes includes passing the radioisotope solution through a solid phase extraction column containing an anion exchange group, thereby trapping the radioisotopes in the column. The method also includes passing an eluent through the column, thereby removing the radioisotopes from the column. The eluent includes a cation trapping agent/salt complex, less than 4% water, and the remainder is a solvent. A method of producing the eluent includes reacting a cation trapping agent with a salt in the presence of less than 4% water and a solvent to form solubilized cation trapping agent/salt complex, wherein one of the cation trapping agent and the salt is present in en excess of a stoichiometric amount and ending the reaction when a predetermined amount of solubilized cation trapping agent/salt complex has been formed.

    摘要翻译: 干燥具有放射性同位素的放射性同位素溶液的方法包括使放射性同位素溶液通过含有阴离子交换基团的固相萃取塔,从而将放射性同位素捕集在柱中。 该方法还包括使洗脱液通过柱,从而从柱中除去放射性同位素。 洗脱液包括阳离子捕获剂/盐络合物,小于4%的水,其余为溶剂。 制备洗脱液的方法包括在小于4%的水和溶剂的存在下使阳离子捕获剂与盐反应形成溶解的阳离子捕获剂/盐络合物,其中阳离子捕获剂和盐之一存在于 超过化学计量量,并且当已经形成预定量的溶解的阳离子捕获剂/盐络合物时结束反应。

    Furanic-modified amine-based curatives
    7.
    发明申请
    Furanic-modified amine-based curatives 审中-公开
    呋喃改性胺类固化剂

    公开(公告)号:US20080207847A1

    公开(公告)日:2008-08-28

    申请号:US11903251

    申请日:2007-09-20

    IPC分类号: C08G18/00 C07D307/34

    摘要: Difunctional aromatic diamines (e.g. Ethacure® 100 and 300) are derivatized with furan-2,5-dicarboxylic acid (FDCA) to form FDCA-derived bisamides; the derivatives have enhanced curative properties when used as curatives for polyureas, hybrid epoxy-urethanes, hybrid urea-urethanes, chain extenders for polyurethane and polyurea elastomers, and also for reaction injection molding (RIM) products.

    摘要翻译: 用呋喃-2,5-二羧酸(FDCA)衍生不同功能的芳族二胺(例如100和300),以形成FDCA衍生的双酰胺; 当用作聚脲,混合环氧 - 氨基甲酸酯,混合尿素 - 氨基甲酸酯,聚氨酯和聚脲弹性体的增链剂以及反应注射成型(RIM)产品时,衍生物具有增强的固化性能。