申请人:MITSUBISHI KASEI CORPORATION
公开号:EP0097890A2
公开(公告)日:1984-01-11
In a process for producing an aromatic polyester by an interfacial polycondensation reaction in which an aqueous alkaline solution containing a bisphenol represented by the general formula
and phenolphthalein in a molar ratio of the former to the latter of from 10 : 90 to 97 : 3, is catalytically reacted with an organic solvent solution of isophthalic acid dichloride and/or terephthalic acid dichloride, an improvement wherein at least one compound selected from the group consisting of the following (a), (b), (c), (d) and (e) is used as the catalyst:
(a) a compound represented by the general formula
(b) a compound represented by the general formuld
(c) a compound represented by the general formula
(d) a compound represented by the general formula
and
(e) a compound represented by the general formula
在一种通过界面缩聚反应生产芳香族聚酯的工艺中,含有通式所代表的双酚和酚酞的碱性水溶液(前者与后者的摩尔比为 10 : 90 至 97 : 3)与间苯二甲酸二氯化物和/或间苯二甲酸二氯化物的有机溶剂溶液进行催化反应。
和酚酞(前者与后者的摩尔比为 10 : 90 至 97 : 3)的碱性水溶液与间苯二甲酸二氯化物和/或对苯二甲酸二氯化物的有机溶剂溶液进行催化反应,其中至少一种从以下(a)、(b)、(c)、(d)和(e)组成的组中选出的化合物用作催化剂的改进:
(a) 由通式表示的化合物
(b) 通式d 所代表的化合物
(c) 由通式表示的化合物
(d) 由通式代表的化合物
及
(e) 由通式代表的化合物