Title:
PRODUCTION OF SODIUM CARBOXYMETHYL CELLULOSE
Document Type and Number:
Japanese Patent JP3475115
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing sodium carboxymethyl cellulose having excellent dispersibility in aqueous solution.
SOLUTION: An etherification reaction is carried out with ±0.2 mol/C6H10O5 excessive alkali based on anhydrous glucose unit and a reaction solvent is recovered. Then the reaction product is heat-treated at 100-150°C for 0.5-3 hours to produce sodium carboxymethyl cellulose.
Inventors:
Keiichi Sato
Masako Furukawa
Masako Furukawa
Application Number:
JP6924999A
Publication Date:
December 08, 2003
Filing Date:
March 15, 1999
Export Citation:
Assignee:
Daiichi Kogyo Pharmaceutical Co., Ltd.
International Classes:
C08B11/12; (IPC1-7): C08B11/12
Attorney, Agent or Firm:
Sota Asahina (1 person outside)