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    • 3. 发明授权
    • Process for producing an aromatic polyesterpolycarbonate
    • 芳香族聚酯聚碳酸酯的制造方法
    • US4369303A
    • 1983-01-18
    • US200596
    • 1980-10-24
    • Hazime MoriKatsuhisa KohyamaKatsuhiko NakamuraKatsuyuki SakataAkira Matsuno
    • Hazime MoriKatsuhisa KohyamaKatsuhiko NakamuraKatsuyuki SakataAkira Matsuno
    • C08G63/00C08G63/64
    • C08G63/64
    • A process for producing an aromatic polyesterpolycarbonate, which comprises polycondensing (a) a dihydroxydiaryl compound, (b) a terephthaloyl chloride and/or isophthaloyl chloride reactant, and (c) phosgene by an interfacial polymerization process in the presence of water, methylene chloride and an acid binding agent thereby preparing an aromatic polyesterpolycarbonate product containing structural units of the formula: ##STR1## wherein X is a divalent group, and the aromatic rings may be substituted, and structural units of the formula: ##STR2## wherein X is a divalent group, and the aromatic rings may be substituted, said condensation reaction being characterized in that after at least 95% of the total --COCl groups in the terephthaloyl chloride and/or isophthaloyl chloride and phosgene starting materials has reacted, a chloroformate compound or additional phosgene is added to the reaction mixture in an amount to bring the concentration of --COCl groups to a level of 10 to 1000 .mu.eq/g relative to the total amount of the above starting materials to complete the reaction.
    • 一种制备芳族聚酯聚碳酸酯的方法,其包括缩聚(a)二羟基二芳基化合物,(b)对苯二甲酰氯和/或间苯二甲酰氯反应物,和(c)通过界面聚合方法在水,二氯甲烷和 由此制备含有下式结构单元的芳族聚酯聚碳酸酯产物:其中X是二价基团,芳环可以被取代,并具有下式的结构单元:(II) )其中X是二价基团,芳环可以被取代,所述缩合反应的特征在于在对苯二酰氯和/或间苯二酰氯和光气原料中的至少95%的-COCl基团已经反应后, 将氯甲酸酯化合物或另外的光气加入到反应混合物中,其量使得-COCl基团的浓度达到10至1000的水平 相对于上述起始原料的总量,相对于完成反应来说,μeq / g。