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。

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。

公开(公告)号：US20130012681A1

公开(公告)日：2013-01-10

申请号：US13517054

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： C07C215/80 ,  C08G65/38 ,  C07C217/92

CPC分类号： C07C217/84 ,  C07C217/86 ,  C08G73/18 ,  C08G73/22 ,  D01F6/74

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.

公开(公告)号：US08163961B2

公开(公告)日：2012-04-24

申请号：US12634799

申请日：2010-02-22

申请人： Rajiv Dhawan ,  Joachim C. Ritter

发明人： Rajiv Dhawan ,  Joachim C. Ritter

IPC分类号： C07C211/00

CPC分类号： C07C209/36 ,  C07C211/50

摘要： Complexes of 2,3,5,6-tetraaminotoluene with an aromatic diacid are prepared by reaction with a divalent salt of the aromatic diacid while maintaining the pH of the reaction solution between 3 and 10. The resulting complexes are suitable for making high molecular weight polybenzimidazole polymers for high-performance fibers.

摘要翻译： 通过与芳族二酸的二价盐反应制备2,3,5,6-四氨基甲苯与芳族二酸的络合物，同时保持反应溶液的pH在3和10之间。所得的络合物适于制备高分子量 用于高性能纤维的聚苯并咪唑聚合物。

公开(公告)号：US20100160675A1

公开(公告)日：2010-06-24

申请号：US12634825

申请日：2009-12-10

申请人： Rajiv DHAWAN ,  Joachim C. Ritter

发明人： Rajiv DHAWAN ,  Joachim C. Ritter

IPC分类号： C07C323/62 ,  C07C227/10

CPC分类号： C07C209/10 ,  C07C51/412 ,  C07C201/08 ,  C07C209/36 ,  C07C211/50 ,  Y02P20/125 ,  C07C65/05 ,  C07C211/52 ,  C07C205/12

摘要： An integrated process is provided for preparing complexes of 2,3,5,6-tetraminotoluene with an aromatic diacid 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： 提供了一种综合方法，用于制备2,3,6,6-四甲基甲苯与芳族二酸的复合物，开始于2,6-二卤代甲苯的硝化。 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。

公开(公告)号：US08188316B2

公开(公告)日：2012-05-29

申请号：US12634757

申请日：2009-12-10

申请人： Rajiv Dhawan ,  Joachim C. Ritter

发明人： Rajiv Dhawan ,  Joachim C. Ritter

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。

公开(公告)号：US08431747B2

公开(公告)日：2013-04-30

申请号：US12634730

申请日：2009-12-10

申请人： Joachim C. Ritter ,  Rajiv Dhawan

发明人： Joachim C. Ritter ,  Rajiv Dhawan

IPC分类号： C07C209/38

CPC分类号： C07C209/36 ,  C07C209/68 ,  C07C211/50 ,  C07C211/64

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。

公开(公告)号：US08420862B2

公开(公告)日：2013-04-16

申请号：US12634745

申请日：2009-12-10

申请人： Rajiv Dhawan ,  Joachim C. Ritter

发明人： Rajiv Dhawan ,  Joachim C. Ritter

IPC分类号： C07C211/00

CPC分类号： C07C211/50 ,  C07C65/03 ,  C08G73/18

摘要： Highly pure 2,3,5,6-tetraaminotoluene species are produced by chemically reducing undesirable oxidation byproducts. The 2,3,5,6-tetraaminotoluene species are then used in the manufacture of superior high-performance polybenzimidazole polymers.

摘要翻译： 通过化学还原不希望的氧化副产物生产高纯度2,3,5,6-四氨基甲苯。 然后将2,3,5,6-四氨基甲苯种类用于制造优异的高性能聚苯并咪唑聚合物。

公开(公告)号：US20130012679A1

公开(公告)日：2013-01-10

申请号：US13516755

申请日：2010-12-21

申请人： Rajiv Dhawan ,  Joachim C. Ritter ,  Frederick K. Mallon ,  Steven R. Allen ,  David J. Rodini ,  Roger K. Siamionko

发明人： Rajiv Dhawan ,  Joachim C. Ritter ,  Frederick K. Mallon ,  Steven R. Allen ,  David J. Rodini ,  Roger K. Siamionko

IPC分类号： C08G65/38

CPC分类号： C08G73/18 ,  C08G61/123 ,  C08G73/22

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.

公开(公告)号：US20100160678A1

公开(公告)日：2010-06-24

申请号：US12634767

申请日：2009-12-10

申请人： RAJIV DHAWAN ,  Joachim C. Ritter

发明人： RAJIV DHAWAN ,  Joachim C. Ritter

IPC分类号： C07C63/26 ,  C07C209/10

CPC分类号： C07C211/50 ,  C07C51/412 ,  C07C209/10 ,  C07C211/52

摘要： An improved process is provided for the preparation of 2,6-diamino-3,5-dinitrotoluene by amination of 2,6-dichloro-3,5-dinitrotoluene. The presence of water unexpectedly results in a highly pure product, free of glycol ether impurities. This product can be used to make highly pure 2,3,5,6-tetraaminotoluene, which in turn can be used to make high molecular weight polybenzimidazoles for high strength fibers.

摘要翻译： 提供了通过2,6-二氯-3,5-二硝基甲苯的胺化制备2,6-二氨基-3,5-二硝基甲苯的改进方法。 水的存在意外地导致高纯度的产品，不含二醇醚杂质。 该产品可用于制备高纯度的2,3,5,6-四氨基甲苯，其又可用于制备用于高强度纤维的高分子量聚苯并咪唑。