利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

89 条记录 (耗时 0.038 秒)

    Method for the purification of triorganophosphites by treatment with a basic additive
    53.
    发明申请
    Method for the purification of triorganophosphites by treatment with a basic additive 有权

    公开(公告)号：US20070219386A1

    公开(公告)日：2007-09-20

    申请号：US11716133

    申请日：2007-03-09

    申请人： Joachim C. Ritter

    发明人： Joachim C. Ritter

    IPC分类号： C07F9/02

    CPC分类号： C07F9/025 ,  C07F9/1412 ,  C07F9/142 ,  C07F9/144 ,  C07F9/145 ,  C07F9/65744

    摘要： The invention provides a method for separating one or more triorganophosphite components from a crude phosphite mixture containing acidic hydrolysis products, the method comprising:contacting said crude phosphite mixture with a basic additive to produce a second mixture comprising a first phase and a second phase, wherein said first phase comprises the basic additive and one or more components independently selected from the group consisting of (R2O)(R3O)POH, (R1O)(HO)PO(H) and H3PO3, wherein R1, R2 and R3 are independently selected from the group consisting of C1 to C18 alkyl, C6 to C18 aryl and hydroxyaryl, and C3 to C18 cycloalkyl and hydroxyalkyl radicals, and wherein R2 and R3 can optionally be connected to each other directly by a chemical bond or through an intermediate divalent group R9; andsaid second phase comprises one or more triorganophosphite components independently selected from the group consisting of (R4O)(R5O)P(OR6) and ((R7O)(R8O)PO)nA, wherein R4, R5, R6, R7 and R8 are independently selected from the group consisting of C1 to C18 alkyl, C6 to C18 aryl and C3 to C18 cycloalkyl radicals, wherein each of R4, R5 and R6 can optionally be connected to one or both of the other two directly by a chemical bond or through an intermediate divalent group R10, wherein R7 and R8 can optionally be connected to each other directly by a chemical bond or through an intermediate divalent group R11, wherein A is an optionally substituted or unsubstituted aliphatic, aromatic or heteroaromatic radical, and wherein n is an integer greater than 1; andR9, R10, and R11 are independently selected from the group consisting of —O—, —S—, and —CH(R12)—, wherein R12 is selected from the group consisting of H, C6 to C18 aryl, and C1 to C18 alkyl.

    2,4,5-TRIAMINOPHENOLS AND RELATED COMPOUNDS
    56.
    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

    申请人： Rajiv Dhawan ,  Joachim C. Ritter

    发明人： Rajiv Dhawan ,  Joachim C. Ritter

    IPC分类号： C07C213/08 ,  C07D213/803

    CPC分类号： C07C63/26 ,  C07C63/333 ,  C07C63/38 ,  C07C65/03 ,  C07C65/11 ,  C07C65/24 ,  C07C215/80

    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
    57.
    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

    申请人： Rajiv Dhawan ,  Joachim C. Ritter

    发明人： Rajiv Dhawan ,  Joachim C. Ritter

    IPC分类号： C07C213/02

    CPC分类号： C07C213/08 ,  C07C51/412 ,  Y02P20/125 ,  C07C65/05 ,  C07C63/26 ,  C07C63/38 ,  C07C215/80

    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。