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    • 4. 发明申请
    • METHODS AND SYSTEMS FOR THE MANUFACTURE OF AN AROMATIC PHTHALIC BISIMIDE AND A POLYETHERIMIDE
    • 用于制备芳族邻苯二酰亚胺和聚醚酰亚胺的方法和系统
    • WO2017189314A1
    • 2017-11-02
    • PCT/US2017/028541
    • 2017-04-20
    • SABIC GLOBAL TECHNOLOGIES B.V.CROLL, Joshua McClellan
    • CROLL, Joshua McClellanALJARRAH, MohannadGUGGENHEIM, Thomas Link
    • C07D209/48B01D11/04C08G73/10C08L79/08
    • A method for producing an aromatic bisimide includes reacting a dialkali metal salt of a dihydroxy aromatic compound with a reactive substituted phthalimide under conditions effective to form a product mixture, introducing the product mixture to a liquid-liquid extraction column including an aqueous alkali metal hydroxide solution, and recovering from the liquid-liquid extraction column a purified aromatic bisimide having less than 500 ppm of residual dialkali metal salt of the dihydroxy aromatic compound, the corresponding dihydroxy aromatic compound, the corresponding mono-substituted salt of the dihydroxy aromatic compound, or a combination including at least one of the foregoing. A method for the manufacture of a polyetherimide from an aromatic bisimide prepared by the above method is also disclosed. A polyetherimide having less than 100 ppb of residual bisphenol A and an article made therefrom are also described.
    • 生产芳族双酰亚胺的方法包括在有效形成产物混合物的条件下使二羟基芳族化合物的二碱金属盐与反应性取代的邻苯二甲酰亚胺反应,将产物混合物引入液 - 液萃取 从液 - 液萃取柱回收具有小于500ppm的二羟基芳族化合物的残余二碱金属盐,相应的二羟基芳族化合物,相应的单取代的盐的纯化的芳族双酰亚胺 的二羟基芳族化合物,或包含前述中的至少一种的组合。 还公开了由上述方法制备的芳族双酰亚胺制备聚醚酰亚胺的方法。 还描述了具有小于100ppb的残余双酚A的聚醚酰亚胺和由其制成的制品。