Title:
溶解性と熱可逆ゲル化性が改善されたヒドロキシアルキルメチルセルロース
Document Type and Number:
Japanese Patent JP5777685
Kind Code:
B2
Abstract:
Provided is hydroxyalkyl methylcellulose which can be dissolved at room temperature of 20 to 30°C and has high thermoreversible gel strength during thermoreversible gelation. More specifically, provided is water-soluble hydroxyalkyl methylcellulose having a molar substitution of hydroxyalkoxyl groups of 0.05 to 0.1 and a substitution degree of methoxyl groups of 1.6 to 1.9, wherein the hydroxyalkoxyl groups are classified into substituted hydroxyalkoxyl groups having hydroxyl groups of hydroxyalkoxyl groups substituted further with methoxyl groups and unsubstituted hydroxyalkoxyl groups having hydroxyl groups of hydroxyalkoxyl groups not further substituted; and a ratio (A/B) of a molar fraction (A) of the substituted hydroxyalkoxyl groups to a molar fraction (B) of unsubstituted hydroxyalkoxyl groups is 0.4 or greater.
Inventors:
Kazuhisa Hayakawa
Rumiko Ito
Rumiko Ito
Application Number:
JP2013223243A
Publication Date:
September 09, 2015
Filing Date:
October 28, 2013
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
C08B11/193
Domestic Patent References:
| JP60192702A | ||||
| JP62059074B1 | ||||
| JP50038782A |
Foreign References:
| WO2006107294A1 |
Attorney, Agent or Firm:
Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo
Hidefumi Kawamura
Arihara Koichi
Matsushima Tetsuo
Hidefumi Kawamura
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