[EN] METHODS FOR THE MANUFACTURE OF AN AROMATIC BISIMIDE AND A POLYETHERIMIDE<br/>[FR] PROCÉDÉS DE PRODUCTION D'UN BISIMIDE AROMATIQUE ET D'UN POLYÉTHERIMIDE
申请人:SABIC GLOBAL TECHNOLOGIES BV
公开号:WO2017117449A1
公开(公告)日:2017-07-06
A method for producing an aromatic bisimide includes reacting a dialkali metal salt of a dihydroxy aromatic compound with an N-alkyl nitrophthalimide to form a product mixture including the aromatic bisimide. The N-alkyl nitrophthalimide includes 4-nitro-N-(C1-13 alkyl)phthalimide, 3-nitro-N-(C1-13 alkyl)phthalimide, or a combination including at least one of the foregoing, and 4-hydroxy-3,5-dinitro-N-(C1-13 alkyl)phthalimide in an amount of 1-10000 ppm. The aromatic bisimide can be obtained in a yield of greater than 75%, or 90-99.8%. A method for the manufacture of a polyetherimide, a polyetherimide, and an article including the polyetherimide are also disclosed. A mixed acid nitration process for the preparation of an N-alkyl nitrophthalimide is also described.
一种生产芳香双酰亚胺的方法包括将二羟基芳香化合物的二碱金属盐与N-烷基硝基邻苯二酰亚胺反应,形成包括芳香双酰亚胺在内的产物混合物。N-烷基硝基邻苯二酰亚胺包括4-硝基-N-(C1-13 烷基)邻苯二酰亚胺、3-硝基-N-(C1-13 烷基)邻苯二酰亚胺,或者包括上述至少一种的组合,以及4-羟基-3,5-二硝基-N-(C1-13 烷基)邻苯二酰亚胺,其浓度为1-10000 ppm。芳香双酰亚胺可以以大于75%的产率获得,或者为90-99.8%。还公开了一种用于制造聚醚酰亚胺、聚醚酰亚胺以及包括聚醚酰亚胺的制品的方法。还描述了一种用于制备N-烷基硝基邻苯二酰亚胺的混合酸硝化过程。