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Title:
新規な高粘度カルボキシメチルセルロースおよび製造方法
Document Type and Number:
Japanese Patent JP2013523919
Kind Code:
A
Abstract:
The invention is directed to a process of preparing carboxymethyl cellulose comprising the steps of (a) reacting non-regenerated cellulose with an alkalization agent in the presence of water and isopropyl alcohol and (b) reacting the alkalized cellulose with monohaloacetic acid or a salt thereof, wherein 1.0 to 1.6 mol of the alkalization agent and 15 to 30 mol of water are used in step (a) and 0.5 to 0.8 mol of monohaloacetic acid or a salt thereof are used in step (b), each based on 1 mol of anhydroglucose unit of the cellulose. The invention also relates to carboxymethyl cellulose prepared by that process.

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Inventors:
Laurent Adden
Mainorf Black Hagen
Volkhard Muller
Oliver Peterman
Application Number:
JP2013501633A
Publication Date:
June 17, 2013
Filing Date:
March 30, 2010
Export Citation:
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Assignee:
Dow Global Technologies LLC
International Classes:
C08B11/12; C08L1/26
Domestic Patent References:
JPS5975903A1984-04-28
JPS62149701A1987-07-03
JP2008222859A2008-09-25
JPH09208601A1997-08-12
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Naori Kota
Toko Saito



 
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