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4. 发明公开

EP2814864A2 VERFAHREN ZUR HERSTELLUNG EINES HOCHMOLEKULAREN, HETEROAROMATISCHEN POLYESTERS ODER COPOLYESTERS 有权
标题翻译： VERFAHREN ZUR HERSTELLUNG EINES HOCHMOLEKULAREN，HETEROAROMATISCHEN POLYESTERS ODER COPOLYESTERS
公开(公告)号：EP2814864A2
公开(公告)日：2014-12-24
申请号：EP13705973.9
申请日：2013-02-15
申请人： Uhde Inventa-Fischer GmbH
发明人： HESS, Christopher , PAETZ, Caspar
IPC分类号： C08G63/00 , C08G63/78
摘要： The invention relates to a continuous process for preparing a high molecular weight heteroaromatic polyester or copolyester, in which a) at least one heteroaromatic dicarboxylic acid or the diester or an acid anhydride thereof, a heteroaromatic dicarboxylic acid having 2-12 carbon atoms and at least one alcohol having 2 to 12 carbon atoms and at least two hydroxyl functionalities are processed by mixing to give a paste or by mixing at elevated temperature to give a homogeneous solution, b) the paste or solution obtained in step a) is converted to an esterification product comprising at least one diester and/or at least one oligoester, and c) the reaction product obtained from stage b) is polycondensed or copolycondensed under reduced pressure compared to standard conditions, the poly- or copolycondensation stage c) being performed in two stages.
摘要翻译：公开了制备高分子量杂芳族聚酯或共聚酯的方法。制备高分子量杂芳族聚酯或共聚酯的方法包括以下步骤：（a）将共聚单体混合在一起形成均匀溶液（1）至少一种具有2-12个碳原子的杂芳族二羧酸或二酯或由其衍生的酸酐或其混合物; （2）至少一种具有2至12个碳原子和至少两个羟基官能团的醇; 和（3）任选的芳族或脂族二羧酸或二酯或由其衍生的酸酐; （b）将步骤a）中获得的糊/溶液转化成含有至少一种二酯或至少一种由至少一种杂芳族二羧酸和至少一种醇形成的低聚酯的酯化产物; 和（c）在减压下将从步骤b）获得的反应产物进行缩聚/共缩聚。

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