METHOD FOR ACYLATING CELLULOSE WITH A SPECIFIC AVERAGE DEGREE OF POLYMERIZATION
    7.
    发明申请
    METHOD FOR ACYLATING CELLULOSE WITH A SPECIFIC AVERAGE DEGREE OF POLYMERIZATION 审中-公开
    用特定平均聚合度聚合纤维素的方法

    公开(公告)号:US20090182138A1

    公开(公告)日:2009-07-16

    申请号:US12305004

    申请日:2007-06-20

    IPC分类号: C08B15/00

    摘要: The present invention describes a process for acylating polysaccharides or oligosaccharides, which comprises dissolving a polysaccharide or oligosaccharide in at least one ionic liquid and, in step A) treating the solution with at least one acid, if appropriate with addition of water, (step A1) or, if appropriate with addition of water, at elevated temperature (step A2) and, in step B) reacting the polysaccharide or oligosaccharide obtained in this way, whose DP is lower than that of the polysaccharide or oligosaccharide used, with an acylating agent.

    摘要翻译: 本发明描述了一种用于酰化多糖或寡糖的方法,其包括将多糖或寡糖溶解在至少一种离子液体中,并且在步骤A)中,如果适量加入水,则用至少一种酸处理该溶液(步骤A1 ),或者如果适当加入水,则在升高的温度下(步骤A2),并且在步骤B中)使DP得到的多糖或寡糖的DP低于所用多糖或寡糖的多糖或寡糖与酰化剂 。