公开(公告)号：US5132415A

公开(公告)日：1992-07-21

申请号：US578575

申请日：1990-09-07

申请人： Michael Diamantoglou ,  Ernst Kundinger

发明人： Michael Diamantoglou ,  Ernst Kundinger

IPC分类号： B01D61/24 ,  B01D71/10 ,  C08B15/00 ,  C12N11/12

CPC分类号： C12N11/12 ,  B01D71/10 ,  C08B15/00

摘要： Method of manufacturing deoxycellulose compounds from cellulose in aprotic solvents with LiCl and/or CaCl.sub.2, with the solvent, in addition to LiCl or CaCl.sub.2, additionally containing bromides, iodides, rhodanides, or dithiocarbamates of the alkaline and/or alkaline earth metals, and the cellulose initially being dissolved in the mixture of aprotic solvent and salts, with a base and/or a basic salt being added at room temperature, and a sulfonic acid halide being added corresponding to the desired degree of substitution, and then being caused to react at temperatures between 16.degree. C. and 100.degree. C.

摘要翻译： 使用LiCl和/或CaCl 2的非质子溶剂中的纤维素制备脱氧纤维素化合物的方法，除了LiCl或CaCl 2之外还含有碱金属和/或碱土金属的溴化物，碘化物，硫氰酸盐或二硫代氨基甲酸盐的溶剂，以及 纤维素最初溶解在非质子溶剂和盐的混合物中，在室温下加入碱和/或碱性盐，并加入对应于所需取代度的磺酰卤，然后使其在 温度在16℃到100℃之间