Method for Preparation of Hydroxyalkylalkylcellulose Ethers with High Yield
    8.
    发明申请
    Method for Preparation of Hydroxyalkylalkylcellulose Ethers with High Yield 审中-公开
    高产量羟烷基烷基纤维素醚的制备方法

    公开(公告)号:US20080242852A1

    公开(公告)日:2008-10-02

    申请号:US10574331

    申请日:2005-12-30

    IPC分类号: C08B11/02

    CPC分类号: C08B11/08

    摘要: The present invention relates to a method for preparing hydroxyalkylalkylcellulose with high yield, more particularly to a method for preparing hydroxyalkylalkylcellulose with high yield, with at least 60% of alkoxy and hydroxyalkoxy substituted, by treating finely ground pulp with an alkali metal hydroxide at room temperature, reacting it with an alkylene oxide and an alkyl halide, and then adding an alkali metal hydroxide and an alkyl halide thereto. The method of the present invention is highly economical and also environment-friendly because waste of the reactants can be greatly reduced.

    摘要翻译: 本发明涉及一种以高产率制备羟烷基烷基纤维素的方法,更具体地涉及一种以高产率制备羟烷基烷基纤维素的方法,通过在室温下用碱金属氢氧化物处理细磨的纸浆,将至少60%的烷氧基和羟基烷氧基取代 与烯化氧和烷基卤反应,然后向其中加入碱金属氢氧化物和烷基卤化物。 本发明的方法是非常经济且环保的,因为可以大大减少反应物的浪费。