发明名称 |
PROCESS OF PREPARING AN ESTERIFIED CELLULOSE ETHER IN THE PRESENCE OF AN ALKALI METAL CARBOXYLATE AND AN ALIPHATIC CARBOXYLIC ACID |
摘要 |
<p>In a process for preparing an esterified cellulose ether a cellulose ether is esterified 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 an alkali metal carboxylate and an aliphatic carboxylic acid, wherein the molar ratio [alkali metal carboxylate/anhydroglucose units of cellulose ether] is not more than [1.20/1] and the molar ratio [aliphatic carboxylic acid/anhydroglucose units of cellulose ether] is from [3.55/1] to [9.0/1].</p> |
申请公布号 |
EP2888288(A1) |
申请公布日期 |
2015.07.01 |
申请号 |
EP20130753060 |
申请日期 |
2013.08.15 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
PETERMANN, OLIVER;SPREHE, MATTHIAS;MILLER, WARREN, K. |
分类号 |
C08B3/16;C08B3/28;C08B11/20;C08B13/00;C08L1/32 |
主分类号 |
C08B3/16 |
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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