Method of forming regenerated carbohydrates with solvent systems based on molten ionic liquids
    7.
    发明授权
    Method of forming regenerated carbohydrates with solvent systems based on molten ionic liquids 有权
    用基于熔融离子液体的溶剂体系形成再生碳水化合物的方法

    公开(公告)号:US08163215B2

    公开(公告)日:2012-04-24

    申请号:US12158869

    申请日:2006-12-22

    摘要: A solution system for biopolymers in the form of carbohydrates based on a molten ionic liquid, additives optionally being contained in the solution system, is described. This solution system contains a protic solvent or a mixture of several protic solvents, and in the case where the protic solvent is solely water, this is present in the solution system in an amount of more than about 5 wt. %. Carbohydrates can be incorporated into the solution system, in particular in the form of starch, cellulose and derivatives thereof, and it can then be used for regeneration of the carbohydrates contained therein. A particularly advantageous process for the preparation of the solution system containing the carbohydrates and for the preparation of regenerated carbohydrates, in particular in the form of regenerated cellulose fibers, is moreover described. The invention accordingly also provides such spun fibers as are distinguished in that they are non-fibrillating. The invention offers in particular economic advantages over the systems of the prior art.

    摘要翻译: 描述了基于熔融离子液体的碳水化合物形式的生物聚合物的溶液系统,任选地包含在溶液体系中的添加剂。 该溶液系统含有质子溶剂或几种质子溶剂的混合物,在质子溶剂仅为水的情况下,溶液体系中的溶解体积大于约5wt。 % 碳水化合物可以并入溶液体系中,特别是淀粉,纤维素及其衍生物的形式,然后可以用于其中所含的碳水化合物的再生。 此外,还描述了制备含有碳水化合物和用于制备再生碳水化合物,特别是再生纤维素纤维形式的溶液体系的特别有利的方法。 因此,本发明还提供了这样的纺丝纤维,其特征在于它们是非原纤化的。 本发明相对于现有技术的系统提供了特别的经济优势。

    Method for the production of purified 1,3-substituted imidazolium salts
    8.
    发明授权
    Method for the production of purified 1,3-substituted imidazolium salts 失效
    生产纯化的1,3-取代咪唑鎓盐的方法

    公开(公告)号:US07501522B2

    公开(公告)日:2009-03-10

    申请号:US10564871

    申请日:2004-06-30

    IPC分类号: C07F9/80 C07F5/02

    摘要: Process for preparing purified 1,3-substituted imidazolium salts of the formula (I) by reacting a 1,3-substituted imidazolium salt of the formula (II), with a strong base at from 20 to 250° C. while distilling off the 1,3-substituted imidazol-2-ylidene formed, in which the 1,3-substituted imidazol-2-ylidene which has been distilled off is brought into contact in the gaseous state with the protic acid HaA (III) and/or the 1,3-substituted imidazol-2-ylidene which has been distilled off is passed in the gaseous or condensed state into a receiver comprising the protic acid HaA (III).

    摘要翻译: 通过使式(II)的1,3-取代的咪唑鎓盐与20-250℃的强碱反应制备式(I)的纯化的1,3-取代的咪唑鎓盐的方法,同时蒸馏除去 形成1,3-取代的咪唑-2-亚基,其中已经蒸馏掉的1,3-取代的咪唑-2-亚基以气态与质子酸HaA(III)和/或 已经蒸馏的1,3-取代的咪唑-2-亚基以气态或浓缩状态通入包含质子酸HaA(III)的接收器中。

    Method for the production of purified 1,3-substituted imidazolium salts
    9.
    发明申请
    Method for the production of purified 1,3-substituted imidazolium salts 失效
    生产纯化的1,3-取代咪唑鎓盐的方法

    公开(公告)号:US20060149074A1

    公开(公告)日:2006-07-06

    申请号:US10564871

    申请日:2004-06-30

    IPC分类号: C07F9/80 C07F5/02

    摘要: Process for preparing purified 1,3-substituted imidazolium salts of the formula (I) by reacting a 1,3-substituted imidazolium salt of the formula (II), with a strong base at from 20 to 250° C. while distilling off the 1,3-substituted imidazol-2-ylidene formed, in which the 1,3-substituted imidazol-2-ylidene which has been distilled off is brought into contact in the gaseous state with the protic acid HaA (III) and/or the 1,3-substituted imidazol-2-ylidene which has been distilled off is passed in the gaseous or condensed state into a receiver comprising the protic acid HaA (III).

    摘要翻译: 通过使式(II)的1,3-取代的咪唑鎓盐与20-250℃的强碱反应制备式(I)的纯化的1,3-取代的咪唑鎓盐的方法,同时蒸馏除去 形成1,3-取代的咪唑-2-亚基,其中已经蒸馏掉的1,3-取代的咪唑-2-亚基以气态与质子酸H SUB接触 已经蒸馏掉的A(III)和/或1,3-取代的咪唑-2-亚基以气态或冷凝状态通入含有质子酸H(A) III)。