Title:
MANUFACTURING METHOD OF CELLULOSE DERIVATIVE
Document Type and Number:
Japanese Patent JP2018177892
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a novel manufacturing method of a silyl ether cellulose derivative suitable to an industrial process capable of suppressing deposition of product during a reaction in manufacturing the silyl ether cellulose derivative having a bulky organic silyl group with suppressed variation of substitution degree.SOLUTION: There is provided a manufacturing method of a silyl ether cellulose derivative having (1) a process for dissolving cellulose in an aprotic solvent (A) to obtain a cellulose solution, (2) a process for adding an organic silanization agent to the cellulose solution obtained in the process (1) to obtain a silyl ether cellulose derivative, in which both of cellulose and the silyl ether cellulose derivative are not deposited from a solvent during a reaction of the process (2). There is provided a manufacturing method of the silyl ether cellulose derivative in which the aprotic solvent (B) is added at silyl group substitution degree to cellulose of 1.0 to 1.5 in the process (2).SELECTED DRAWING: None
Inventors:
AKAO SHINSUKE
KORAI HIROTO
YASUMOTO NARUHIRO
KORAI HIROTO
YASUMOTO NARUHIRO
Application Number:
JP2017076274A
Publication Date:
November 15, 2018
Filing Date:
April 06, 2017
Export Citation:
Assignee:
KANEKA CORP
International Classes:
C08B11/00; C08B13/00
Domestic Patent References:
| JP2002194138A | 2002-07-10 |
Foreign References:
| WO2008143322A1 | 2008-11-27 | |||
| US4137399A | 1979-01-30 |