IMPROVED ALKANOLYSIS PROCESS
    22.
    发明申请
    IMPROVED ALKANOLYSIS PROCESS 审中-公开
    改进的碱解法

    公开(公告)号:WO2013112785A1

    公开(公告)日:2013-08-01

    申请号:PCT/US2013/023055

    申请日:2013-01-25

    CPC classification number: C08G65/00 C08G65/20 C08G65/30 C08G65/32 Y02P20/127

    Abstract: The present invention provides an improved process for converting a diester of polyether polyol, e.g., PTMEA, to the corresponding dihydroxy product, e.g., polytetramethylene ether glycol (PTMEG) continuously in a reaction zone, such as, for example, a reactive distillation system, for achieving virtually complete conversion of PTMEA to PTMEG, and recovery of PTMEG free of unreacted or unconverted PTMEA and alkanol ester by-product.

    Abstract translation: 本发明提供了一种改进的方法,其将聚醚多元醇例如PTMEA的二酯在反应区(例如反应蒸馏系统)中连续转化成相应的二羟基产物,例如聚四亚甲基醚二醇(PTMEG) 用于实现PTMEA到PTMEG的几乎完全转化,以及没有未反应或未转化的PTMEA和链烷醇酯副产物的PTMEG的回收。

    LOW WICK CONTINUOUS FILAMENT POLYESTER YARN
    24.
    发明申请
    LOW WICK CONTINUOUS FILAMENT POLYESTER YARN 审中-公开
    低温连续纤维聚酯纱

    公开(公告)号:WO2005093140A1

    公开(公告)日:2005-10-06

    申请号:PCT/US2005/008989

    申请日:2005-03-18

    CPC classification number: D06M13/08 D06M15/277 G09F7/00 G09F17/00

    Abstract: The present invention teaches a filament yarn that has low wicking, i.e., less than or equal to about 6 mm; has a contact angle of greater than or equal to about 65° but less than about 90° according to the straw method; and a static voltage of +/- 400 volts (between -400 to +400 volts). Such yams are traditionally employed in weaving signs, banners, awning, tents and other products where moisture resistant yam is important. The yams can be made into fabrics that possess the same features as the yarn, namely low wicking, and water and oil repellency.

    Abstract translation: 本发明教导了具有低芯吸力,即小于或等于约6mm的长丝纱线; 根据秸秆方式具有大于或等于约65°但小于约90°的接触角; 和静态电压+/- 400伏特(-400至+400伏特之间)。 这种纱线传统上用于编织标志,横幅,遮阳篷,帐篷等防潮山药重要的产品。 纱线可以制成具有与纱线相同特征的织物,即低芯吸,防水拒油性。

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