发明名称 |
PROCESS FOR PREPARING AN ESTER OF A CELLULOSE ETHER IN THE PRESENCE OF ACETIC ACID AND A REACTION CATALYST |
摘要 |
A process for preparing an esterified cellulose ether comprises the step of esterifying a cellulose ether with (i) an aliphatic monocarboxylic acid anhydride or (ii) a dicarboxylic acid anhydride or (iii) a combination of an aliphatic monocarboxylic acid anhydride and a dicarboxylic acid anhydride in the presence of acetic acid. The esterification reaction is conducted in the presence of an alkali metal diacetate as a reaction catalyst. |
申请公布号 |
WO2017053337(A1) |
申请公布日期 |
2017.03.30 |
申请号 |
WO2016US52739 |
申请日期 |
2016.09.21 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
APPELL, Robert B. |
分类号 |
C08B13/00 |
主分类号 |
C08B13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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