Slurry preparation of bis (halophthalimides) and of polyether polymers
    4.
    发明授权
    Slurry preparation of bis (halophthalimides) and of polyether polymers 失效
    双(卤代邻苯二酰亚胺)和聚醚聚合物的浆料制备

    公开(公告)号:US06235866B1

    公开(公告)日:2001-05-22

    申请号:US09413376

    申请日:1999-10-06

    IPC分类号: C08G802

    摘要: Bis(halophthalimides) such as, 3-bis[N-(4-chlorophthalimido)]benzene are prepared in slurry in an organic liquid such as o-dichlorobenzene or anisole, by a reaction at a temperature of at least 150° C. between at least one diamino compound, preferably an aromatic diamine such as m- or p-phenylenediamine, and at least one halophthalic anhydride such as 4-chlorophthalic anhydride, in the presence of an imidization catalyst such as sodium phenylphosphinate. The solids content of the reaction mixture is at least about 5% and preferably at least about 12% by weight. The product slurry may be employed directly in the 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,在有机液体如邻二氯苯或苯甲醚中的浆料中制备双(卤代邻苯二酰亚胺)如3-双[N-(4-氯邻苯二甲酰亚氨基) 至少一种二氨基化合物,优选芳族二胺如间苯二胺或对苯二胺,以及至少一种卤代邻苯二甲酸酐如4-氯邻苯二甲酸酐在酰亚胺化催化剂如苯基次膦酸钠存在下进行。 反应混合物的固体含量为至少约5%,优选至少约12%重量。 产物浆料可以直接用于制备聚醚酰亚胺,并且可以使用类似的浆料来制备其它聚醚聚合物。

    Method for preparing polyimide and polyimide prepared thereby
    5.
    发明授权
    Method for preparing polyimide and polyimide prepared thereby 有权
    由此制备聚酰亚胺和聚酰亚胺的方法

    公开(公告)号:US07053168B2

    公开(公告)日:2006-05-30

    申请号:US10683226

    申请日:2003-10-10

    IPC分类号: C08G73/00 C08F6/00 C08L79/00

    CPC分类号: C08G73/1028 C08G73/1032

    摘要: A method for preparing a polyimide includes introducing a mixture of an oligomer and a solvent to an extruder, removing solvent via at least one extruder vent, and melt kneading the oligomer to form a polyimide. The polyimide has a low residual solvent content. The method is faster than solution polymerization of polyimides, and it avoids the stoichiometric inaccuracies associated with reactive extrusion processes that use monomers as starting materials.

    摘要翻译: 制备聚酰亚胺的方法包括将低聚物和溶剂的混合物引入挤出机中,通过至少一个挤出机出口除去溶剂,并熔融捏合低聚物以形成聚酰亚胺。 聚酰亚胺的残留溶剂含量低。 该方法比聚酰亚胺的溶液聚合更快,并且避免了使用单体作为起始原料的反应挤出方法的化学计量不准确性。

    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。

    Method to prepare bis(haloimides)
    10.
    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。