Integrated process for the preparation of polybenzimidazole precursors
    1.
    发明授权
    Integrated process for the preparation of polybenzimidazole precursors 失效
    用于制备聚苯并咪唑前体的综合方法

    公开(公告)号:US08188316B2

    公开(公告)日:2012-05-29

    申请号:US12634757

    申请日:2009-12-10

    IPC分类号: C07C211/00

    CPC分类号: C07C63/28 Y02P20/125

    摘要: Processes are provided for preparing complexes of 2,3,5,6-tetraaminotoluene with an aromatic diacid where the aromatic diacid is insoluble in water under ambient conditions. An integrated process design starting with nitration of 2,6-dihalotoluene eliminates costly intermediate drying and recrystallization steps. Handling of solid materials with possible skin sensitizing properties and toxicity is avoided, thereby eliminating human and environmental exposure.

    摘要翻译: 提供了制备2,3,5,6-四氨基甲苯与芳族二酸的络合物的方法,其中芳族二酸在环境条件下不溶于水。 从2,6-二卤代甲苯硝化开始的综合工艺设计消除了昂贵的中间干燥和重结晶步骤。 避免了具有可能的皮肤敏感性和毒性的固体材料的处理,从而消除了人体和环境的暴露。

    INTEGRATED PROCESS FOR THE PREPARATION OF POLYBENZIMIDAZOLE PRECURSORS
    2.
    发明申请
    INTEGRATED PROCESS FOR THE PREPARATION OF POLYBENZIMIDAZOLE PRECURSORS 失效
    用于制备聚苯并咪唑前体的一体化方法

    公开(公告)号:US20100160685A1

    公开(公告)日:2010-06-24

    申请号:US12634734

    申请日:2009-12-10

    IPC分类号: C07C209/38

    摘要: An integrated process is provided for preparing 2,3,5,6-tetraminotoluene and salts thereof starting with nitration of 2,6-dihalotoluene. The process design eliminates costly intermediate drying and recrystallization steps. Handling of solid materials with possible skin sensitizing properties and toxicity is avoided, thereby eliminating human and environmental exposure.

    摘要翻译: 提供了从2,6-二卤代甲苯的硝化开始制备2,3,5,6-四甲基甲苯及其盐的综合方法。 该工艺设计消除了昂贵的中间干燥和重结晶步骤。 避免了具有可能的皮肤敏感性和毒性的固体材料的处理,从而消除了人体和环境的暴露。

    Process for the preparation of monomers for polybenzimidazole materials
    3.
    发明授权
    Process for the preparation of monomers for polybenzimidazole materials 失效
    制备聚苯并咪唑物质单体的方法

    公开(公告)号:US08431747B2

    公开(公告)日:2013-04-30

    申请号:US12634730

    申请日:2009-12-10

    IPC分类号: C07C209/38

    摘要: A process is provided to produce 2,3,5,6-tetraaminotoluene. Highly pure salts of 2,3,5,6-tetraaminotoluene are produced via reduction of 2,6-diamino-3,5-dinitrotoluene. The 2,3,5,6-tetraaminotoluene salt is precipitated as a clean (>99% purity) product. The salt is a precursor for monomers to make a polybenzimidazole for high performance fibers.

    摘要翻译: 提供了一种制备2,3,5,6-四氨基甲苯的方法。 通过还原2,6-二氨基-3,5-二硝基甲苯制备2,3,5,6-四氨基甲苯的高纯度盐。 2,3,5,6-四氨基甲苯盐作为清洁(> 99%纯度)产物沉淀。 该盐是用于制备用于高性能纤维的聚苯并咪唑的单体的前体。

    Process for the Preparation of Monomers for Polybenzimidazole Materials
    6.
    发明申请
    Process for the Preparation of Monomers for Polybenzimidazole Materials 失效
    聚苯并咪唑材料单体制备方法

    公开(公告)号:US20100160686A1

    公开(公告)日:2010-06-24

    申请号:US12634730

    申请日:2009-12-10

    IPC分类号: C07C209/38

    摘要: A process is provided to produce 2,3,5,6-tetraaminotoluene. Highly pure salts of 2,3,5,6-tetraaminotoluene are produced via reduction of 2,6-diamino-3,5-dinitrotoluene. The 2,3,5,6-tetraaminotoluene salt is precipitated as a clean (>99% purity) product. The salt is a precursor for monomers to make a polybenzimidazole for high performance fibers.

    摘要翻译: 提供了一种制备2,3,5,6-四氨基甲苯的方法。 通过还原2,6-二氨基-3,5-二硝基甲苯制备2,3,5,6-四氨基甲苯的高纯度盐。 2,3,5,6-四氨基甲苯盐作为清洁(> 99%纯度)产物沉淀。 该盐是用于制备用于高性能纤维的聚苯并咪唑的单体的前体。

    2,4,5-triaminophenols and related compounds
    8.
    发明授权
    2,4,5-triaminophenols and related compounds 失效
    2,4,5-三氨基苯酚和相关化合物

    公开(公告)号:US08580910B2

    公开(公告)日:2013-11-12

    申请号:US13517261

    申请日:2010-12-21

    IPC分类号: C08G64/00 C08G63/02

    摘要: New triaminophenol compositions and related compounds are disclosed, as are processes for their preparation and for the preparation of novel salts and diacid complexes from such compounds. Polymers prepared from these compositions can be made into high strength fiber, film, and tape and are useful in applications such as protective apparel, aircraft, automotive components, personal electronics, and sports equipment.

    摘要翻译: 公开了新的三氨基苯酚组合物和相关化合物,以及它们的制备方法以及从这些化合物制备新的盐和二酸配合物。 由这些组合物制备的聚合物可以制成高强度纤维,薄膜和胶带,并且可用于诸如保护性服装,飞机,汽车部件,个人电子设备和运动器材的应用中。

    2,4,5-TRIAMINOPHENOLS AND RELATED COMPOUNDS
    9.
    发明申请
    2,4,5-TRIAMINOPHENOLS AND RELATED COMPOUNDS 审中-公开
    2,4,5-三硝基苯酚及相关化合物

    公开(公告)号:US20130053573A1

    公开(公告)日:2013-02-28

    申请号:US13516820

    申请日:2010-12-21

    IPC分类号: C07C213/08 C07D213/803

    摘要: New triaminophenol compositions and related compounds are disclosed, as are processes for their preparation and for the preparation of novel salts and diacid complexes from such compounds. Polymers prepared from these compositions can be made into high strength fiber, film, and tape and are useful in applications such as protective apparel, aircraft, automotive components, personal electronics, and sports equipment.

    摘要翻译: 公开了新的三氨基苯酚组合物和相关化合物,以及它们的制备方法以及从这些化合物制备新的盐和二酸配合物。 由这些组合物制备的聚合物可以制成高强度纤维,薄膜和胶带,并且可用于诸如保护性服装,飞机,汽车部件,个人电子设备和运动器材的应用中。

    INTEGRATED PROCESSES FOR THE PREPARATION OF POLYBENZIMIDAZOLE PRECURSORS
    10.
    发明申请
    INTEGRATED PROCESSES FOR THE PREPARATION OF POLYBENZIMIDAZOLE PRECURSORS 审中-公开
    用于制备聚苯并咪唑前体的综合方法

    公开(公告)号:US20130046109A1

    公开(公告)日:2013-02-21

    申请号:US13517283

    申请日:2010-12-21

    IPC分类号: C07C213/02

    摘要: An integrated process is provided for efficiently preparing 2,4,5-triaminaphenol, starting with nitration of 2,6-dihalobenzene; high purity salts thereof; and complexes of 2,4,5-triaminophenol aromatic diacids, which are precursors for making polybenzimidazole polymer for high performance fibers. The process design eliminates several costly intermediate drying and recrystallization steps. The handling of solid materials with possible skin sensitizing properties and toxicity is avoided, thereby eliminating human and environmental exposure.

    摘要翻译: 提供了一种综合方法,用于有效地制备2,4,5-三氨基苯酚,从2,6-二卤代苯的硝化开始; 其高纯度盐; 以及2,4,5-三氨基苯酚芳族二酸的络合物,其是用于制备用于高性能纤维的聚苯并咪唑聚合物的前体。 该工艺设计消除了几个昂贵的中间干燥和重结晶步骤。 避免了具有可能的皮肤敏感性和毒性的固体材料的处理,从而消除了人体和环境的暴露。