公开(公告)号：US20140343272A1

公开(公告)日：2014-11-20

申请号：US14363991

申请日：2012-11-16

申请人： SAMSUNG FINE CHEMICALS CO., LTD.

发明人： Min Ju SONG ,  Byoung Hee SON

IPC分类号： C08B13/00

CPC分类号： C08B13/00 ,  C08B3/06 ,  C08B11/02 ,  C08B11/08 ,  C08B11/20 ,  C08L1/32

摘要： Disclosed are a method of preparing acetylated cellulose ether, and acetylated cellulose ether prepared thereby. Here, the disclosed method of preparing the acetylated cellulose ether includes dissolving acetylated cellulose ether in an organic solvent to obtain a mixture comprising a solution of the acetylated cellulose ether; removing an insoluble component that is insoluble in the organic solvent from the mixture; and adding the mixture to water to precipitate the acetylated cellulose ether. The acetylated cellulose ether prepared thereby has a turbidity of less than 40 formazin turbidity units (FTU).

摘要翻译： 公开了制备乙酰化纤维素醚的方法和由此制备的乙酰化纤维素醚。 这里所公开的制备乙酰化纤维素醚的方法包括将乙酰化纤维素醚溶解在有机溶剂中，得到包含乙酰化纤维素醚溶液的混合物; 从混合物中除去不溶于有机溶剂的不溶性成分; 并将混合物加入水中以沉淀乙酰化的纤维素醚。 由此制备的乙酰化纤维素醚具有小于40 formazin浊度单位（FTU）的浊度。