发明名称 |
Solvent system based on molten ionic liquids containing imidazolium as cation, useful for dissolving carbohydrate and for producing regenerated carbohydrate, comprises protic solvent e.g. methanol, ethanol, 1-propanol and/or 1-butanol |
摘要 |
<p>Solvent system based on molten ionic liquid for biopolymers in the form of carbohydrates, comprises optionally additives and a protic solvent or its mixture, and if the protic solvent is water alone, then this is present in the solvent system in an amount of more than about 5 wt.%. Independent claims are included for: (1) a method for the production of a solvent system comprising mixing the carbohydrates with the molten ionic liquid and the protic solvent and/or its mixture, until the carbohydrates are dissolved; (2) a method for the production of regenerated carbohydrates, preferably starch, cellulose and their derivatives using the solvent system, where the solvent system is precipitated, preferably wet spun in a coagulation medium, and contains a solvent, which does not dissolve the carbohydrates and is mixable with the molten ionic liquid; (3) a regenerated carbohydrates, preferably in the form of regenerated cellulose fibers obtained by the above method; and (4) spinnable fibers based on regenerated cellulose with a wet fibrillation grade of /~2.</p> |
申请公布号 |
DE102006035830(A1) |
申请公布日期 |
2008.02.07 |
申请号 |
DE20061035830 |
申请日期 |
2006.08.01 |
申请人 |
BASF AG |
发明人 |
STEGMANN, VEIT;MASSONNE, KLEMENS;MAASE, MATTHIAS;UERDINGEN, ERIC;LUTZ, MICHAEL;HERMANUTZ, FRANK;GAEHR, FRANK |
分类号 |
C07D233/58;C08B1/00;D01D5/00;D01F2/08 |
主分类号 |
C07D233/58 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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