发明授权
- 专利标题: Reactive cellulose and method for making same
- 专利标题(中): 反应性纤维素及其制备方法
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申请号: US09403713申请日: 1999-11-10
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公开(公告)号: US06392035B1公开(公告)日: 2002-05-21
- 发明人: Ties Karstens , Armin Stein , Hans Steinmeier
- 申请人: Ties Karstens , Armin Stein , Hans Steinmeier
- 优先权: FR9705430 19970425
- 主分类号: C08B1100
- IPC分类号: C08B1100
摘要:
The invention concerns reactive cellulose, i.e. cellulose having in particular a very low degree of crystallinity obtainable with a high degree of purity. Said novel reactive cellulose is particularly used as raw material for making cellulose ethers. The invention is characterized in that the reactive cellulose is substituted by organic groups according to a degree of substitution, DS, of less than 0.2, preferably between 0.04 and 0.2.