Method to prepare bis(haloimides)
    5.
    发明授权
    Method to prepare bis(haloimides) 有权
    制备双(卤代酰亚胺)的方法

    公开(公告)号:US08592548B2

    公开(公告)日:2013-11-26

    申请号:US11022907

    申请日:2004-12-22

    IPC分类号: C08G8/02

    CPC分类号: C07D209/48 C08G73/12

    摘要: Bis(halophthalimides) are prepared in mixture in an organic liquid such as ortho-dichlorobenzene or anisole, by a reaction at a temperature of at least 150° C. between at least one diamine compound and at least one halophthalic anhydride in the presence of imidization catalyst. The reaction mixture is maintained at about 15% by weight solids content and rich in the halophthalic anhydride by constantly monitoring the reaction mixture using analytical methods such as high performance liquid chromatography. The product mixture may be directly employed in the direct preparation of polyetherimides, and similar slurries may be employed to prepare other polyether polymers.

    摘要翻译: 通过在至少150℃的温度下在至少一种二胺化合物和至少一种卤代邻苯二甲酸酐之间的反应中,在酰亚胺化的存在下,在有机液体如邻二氯苯或苯甲醚中混合制备双(卤代邻苯二酰亚胺) 催化剂。 通过使用诸如高效液相色谱法的分析方法不断监测反应混合物,将反应混合物保持在约15重量%的固体含量并富含卤代邻苯二甲酸酐。 产物混合物可以直接用于直接制备聚醚酰亚胺,并且可以使用类似的浆料来制备其它聚醚聚合物。

    Polyetherimide compositions, methods of manufacture, and articles formed therefrom
    6.
    发明授权
    Polyetherimide compositions, methods of manufacture, and articles formed therefrom 有权
    聚醚酰亚胺组合物,制造方法和由其形成的制品

    公开(公告)号:US09127127B2

    公开(公告)日:2015-09-08

    申请号:US13649443

    申请日:2012-10-11

    IPC分类号: C08G73/10

    摘要: A method for the manufacture of a polyetherimide composition includes catalyzing the reaction of a dianhydride and an organic diamine with a catalyst selected from guanadinium salts, pyridinium salts, imidazolium salts, tetra(C6-24)aryl ammonium salts, tetra(C7-24 arylalkylene) ammonium salts, dialkyl heterocycloaliphatic ammonium salts, bis-alkyl quaternary ammonium salts, (C7-24arylalkylene)(C1-16alkyl) phosphonium salts, (C6-24aryl)(C1-16alkyl)phosphonium salts, phosphazenium salts and combinations thereof, optionally in the presence of a solvent.

    摘要翻译: 制备聚醚酰亚胺组合物的方法包括用选自胍盐,吡啶鎓盐,咪唑鎓盐,四(C 6-24)芳基铵盐,四(C 7-24芳基亚烷基)烷基的催化剂催化二酐和有机二胺的反应 )铵盐,二烷基杂环脂族铵盐,双烷基季铵盐,(C 7-24芳基亚烷基)(C 1-6烷基)鏻盐,(C 6-24芳基)(C 1-6烷基)鏻盐,磷氮烯基鏻盐及其组合, 溶剂的存在。

    Phase transfer catalyzed method for preparation of polyetherimides
    8.
    发明授权
    Phase transfer catalyzed method for preparation of polyetherimides 有权
    相转移催化聚醚酰亚胺的制备方法

    公开(公告)号:US07714095B2

    公开(公告)日:2010-05-11

    申请号:US11363681

    申请日:2006-02-28

    摘要: Polyether polymers, such as polyetherimides, are prepared by the reaction of a dihydroxy-substituted aromatic hydrocarbon alkali metal salt, such as bisphenol A disodium salt, with a bis(N-(chlorophthalimido))aromatic compound, such as 1,3- and/or 1,4-bis(N-(4-chlorophthalimido))benzene, in a solvent such as o-dichlorobenzene and in the presence of a phase transfer catalyst such as a hexaalkylguanidinium chloride. Several embodiments may be employed to improve the method. They comprise employing substantially dry reagents, employing a high solids level in solvent, beginning with an excess of bis(N-(chlorophthalimido))-aromatic compound and incrementally adding alkali metal salt, employing alkali metal salt of small particle size, and using reagents of high purity.

    摘要翻译: 聚醚聚合物如聚醚酰亚胺通过二羟基取代的芳族烃碱金属盐如双酚A二钠盐与双(N-(氯代邻苯二甲酰亚胺基))芳族化合物如1,3-和 /或1,4-双(N-(4-氯邻苯二甲酰亚氨基))苯,在溶剂如邻二氯苯中,并在相转移催化剂如六烷基氯化the存在下进行。 可以采用几个实施例来改进该方法。 它们包括使用基本上干的试剂,在溶剂中使用高固体含量,从过量的双(N-(氯代邻苯二甲酰亚胺基)) - 芳族化合物开始,并逐渐加入碱金属盐,使用小粒径的碱金属盐,并使用试剂 的高纯度。