Method for drying nonionic alkylene oxide-type water-soluble resin, method for packaging it, and method for transporting it
    1.
    发明授权
    Method for drying nonionic alkylene oxide-type water-soluble resin, method for packaging it, and method for transporting it 有权
    非离子环氧烷型水溶性树脂的干燥方法,包装方法及其运送方法

    公开(公告)号:US07354984B2

    公开(公告)日:2008-04-08

    申请号:US11062151

    申请日:2005-02-18

    IPC分类号: C08G18/08

    CPC分类号: C08G65/30 Y10T428/1348

    摘要: To efficiently dry it, a nonionic alkylene oxide-type water-soluble resin is put into a container, then the container is degassed to a prescribed vacuum degree which is maintained while a dry gas having a dew point not higher than prescribed is introduced into the container at a rate not lower than prescribed. Minor volatiles are efficiently removed from the resin in an evaporation tank having a stirring blade. For protecting the dried resin from water, a dry gas is introduced into and air is purged from an empty packaging container whereafter the resin is charged into the container is sealed. By controlling solvent content and visocity of the resin and loading it into a temperature-controlled transportation container and/or unloading it out of the transportation container by the use of a pump, good subsquent processability of the resin and prevention of deterioration thereof are ensured.

    摘要翻译: 为了有效地将其干燥,将非离子型环氧烷烃型水溶性树脂放入容器中,然后将容器脱气到规定的真空度,将具有不高于露点的干燥气体导入到 容器以不低于规定的速度。 在具有搅拌叶片的蒸发罐中有效地从树脂中除去少量挥发物。 为了将干燥的树脂从水中保护,将干燥的气体引入空气中并从空的包装容器中清除空气,然后将树脂装入容器中进行密封。 通过控制树脂的溶剂含量和粘度,并将其装载到温度控制的运输容器中和/或通过使用泵将其卸载出运输容器,确保树脂的良好的加工性和防止其变质。