Title:
【発明の名称】セルロ-スエ-テルの製造及び精製方法
Document Type and Number:
Japanese Patent JPS5942682
Kind Code:
B2
Abstract:
Polysaccharide ethers are made by reacting an alkali metal polysaccharide and an etherifying agent in a diluent containing a liquid hydrocarbon. The reaction mixture is subjected to azeotroping conditions which remove water and hydroxyl containing organic by-products, which interfere with cross-linking reaction of the crude polysaccharide ether with carbonyl compounds. The process is especially adaptable to water-solubilizible cellulose ethers with gel points of about 90 DEG C or higher.
Inventors:
KAARU REOHORUDO KURUUMERU
JEEMUSU OOBUREI MEI
FUREDERITSUKU WAAREN SUTANREI JUNIAA
JEEMUSU OOBUREI MEI
FUREDERITSUKU WAAREN SUTANREI JUNIAA
Application Number:
JP7856975A
Publication Date:
October 17, 1984
Filing Date:
June 24, 1975
Export Citation:
Assignee:
DOW CHEMICAL CO
International Classes:
C08B11/193; C08B11/00; C08B11/20; C08B15/10; C08B31/00; C08B31/08; (IPC1-7): C08B11/193; C08B11/20; C08B15/10
Attorney, Agent or Firm:
Kyozo Yuasa