发明申请
US20080242852A1 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
- 专利标题： Method for Preparation of Hydroxyalkylalkylcellulose Ethers with High Yield
- 专利标题（中）： 高产量羟烷基烷基纤维素醚的制备方法
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申请号： US10574331申请日： 2005-12-30
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公开(公告)号： US20080242852A1公开(公告)日： 2008-10-02
- 发明人: Seok Soo Kim , Ung-Jin Kim , Il Yong Lee , Hee Won Hwang , Yong Sung Jang
- 申请人： Seok Soo Kim , Ung-Jin Kim , Il Yong Lee , Hee Won Hwang , Yong Sung Jang
- 国际申请： PCT/KR2005/004663 WO 20051230
- 主分类号： C08B11/02
- IPC分类号： C08B11/02
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.
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