发明名称 |
PROCESS FOR PRODUCING POLYETHER-POLYESTER BLOCK COPOLYMER |
摘要 |
<p>The present invention discloses a process for producing a polyether-polyester block copolymer with a di(C 1-C 4)alkyl ester of aromatic dicarboxylic acid, an aliphatic diol or aliphatic polyol and a polyether having at least one terminal hydroxyl group in an inert solvent. In the present invention, the inert solvent 5 is used to prevent the di(C 1-C 4)alkyl ester of aromatic dicarboxylic acid from sublimation instead of excessive polyol, such that the subsequent removal of excessive polyol under high temperature and high vacuum is avoided.</p> |
申请公布号 |
EP2448992(B1) |
申请公布日期 |
2014.04.30 |
申请号 |
EP20090846687 |
申请日期 |
2009.07.01 |
申请人 |
SOLVAY (CHINA) CO., LTD. |
发明人 |
LIU, ZHAOQING;LIN, DAOBING;LI, QIAOBO |
分类号 |
C08G63/66;C08G65/00;C11D1/74 |
主分类号 |
C08G63/66 |
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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