Title:
CARBOXYMETHYL CELLULOSE OR ITS SALT
Document Type and Number:
Japanese Patent JP3850559
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a carboxymethyl cellulose or its salt (CMC) capable of coexisting fluidity, coating property and thixotropy in an aqueous composition.
SOLUTION: The viscosity ratio η24/η1 of the viscosity η1 after 1 hour and the viscosity η24 after 24 hours after preparing an aqueous solution of sorbitol using this CMC is ≥1.4. This CMC exhibits (1) the turbidity of 1 wt.% solution using 4 wt.% sodium chloride solution as the solvent is ≥30%, (2) the viscosity of 1 wt.% aqueous solution is 20 to 1,000 (mPa.s), (3) the average degree of etherification is 0.6 to 1.0. This CMC is obtained by setting the reaction temperature at 20 to 50°C in a process producing the alkaline cellulose by reacting cellulose and alkali.
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Inventors:
Katsuaki Ohno
Hiroyuki Nakamura
Hiroyuki Nakamura
Application Number:
JP20538098A
Publication Date:
November 29, 2006
Filing Date:
July 21, 1998
Export Citation:
Assignee:
Daicel Chemical Industry Co., Ltd.
International Classes:
C08B11/12; C08B15/04; A23G9/32; A23G9/44; A23G9/52; A61K8/73; A61Q11/00; C09K3/00; (IPC1-7): C08B15/04
Domestic Patent References:
| JP7196481A | ||||
| JP10007551A | ||||
| JP47039385A | ||||
| JP6248001A | ||||
| JP9188703A |
Attorney, Agent or Firm:
Mitsuo Kata
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