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1. 发明授权

US06508954B1 1,3-dibromo-5,5-dimethylhydantoin of enhanced properties 有权
标题翻译：增强性能的1,3-二溴-5,5-二甲基乙内酰脲
公开(公告)号：US06508954B1
公开(公告)日：2003-01-21
申请号：US09484687
申请日：2000-01-18
申请人： Hassan Y. Elnagar , Jonathan N. Howarth , Bruce C. Peters , Edgar E. Spielman, Jr. , Dustin H. Thomas
发明人： Hassan Y. Elnagar , Jonathan N. Howarth , Bruce C. Peters , Edgar E. Spielman, Jr. , Dustin H. Thomas
IPC分类号： C02F512
CPC分类号： C07D233/82 , A01N59/00 , Y10S514/951 , A01N25/34 , A01N25/12 , A01N2300/00
摘要： Among the enhanced properties of the 1,3-dibromo-5,5-dimethylhydantoins described are their larger average particle sizes, their compactibility even though devoid of a binder, their excellent free-flowing and low-dust properties, and their more appealing aesthetic qualities, as compared to previously known 1,3-dibromo-5,5-dimethylhydantoins. These novel 1,3-dibromo-5,5-dimethylhydantoins can be produced, for example, by concurrently feeding (i) an aqueous solution or slurry formed from an inorganic base and 5,5-dimethylhydantoin, and (ii) a brominating agent, in proportions such that each nitrogen atom is substituted by a bromine atom, thereby forming product which precipitates in an aqueous reaction mixture. The pH of the reaction mixture is maintained in the range of about 5.5 to about 8.5.
摘要翻译：所描述的1,3-二溴-5,5-二甲基乙内酰脲的增强性能是它们更大的平均粒度，即使没有粘合剂，它们的优异的自由流动性和低灰尘性质，以及它们更具吸引力的美学质量，与以前已知的1,3-二溴-5,5-二甲基乙内酰脲相比。这些新型的1,3-二溴-5,5-二甲基乙内酰脲可以例如通过同时进料（i）由无机碱和5,5-二甲基乙内酰脲形成的水溶液或浆料，和（ii）溴化剂以比例使得每个氮原子被溴原子取代，从而形成在水性反应混合物中沉淀的产物。反应混合物的pH保持在约5.5至约8.5的范围内。

2. 发明授权

US07999118B2 Process for producing N-halogenated hydantoins 有权
标题翻译：生产N-卤代乙内酰脲的方法
公开(公告)号：US07999118B2
公开(公告)日：2011-08-16
申请号：US11251640
申请日：2005-10-17
申请人： Hassan Y. Elnagar , Bruce C. Peters , Edgar E. Spielman, Jr. , Dustin H. Thomas
发明人： Hassan Y. Elnagar , Bruce C. Peters , Edgar E. Spielman, Jr. , Dustin H. Thomas
IPC分类号： C07D233/74 , C07D233/82
CPC分类号： A01N43/50 , C07D233/82 , Y10T428/2982
摘要： This invention provides a process for the N-halogenation of at least one 5-hydrocarbyl hydantoin and/or at least one 5,5-dihydrocarbyl hydantoin. The process comprises concurrently feeding into a reaction zone (i) water, inorganic base, and 5,5-dimethylhydantoin, these being fed separately and/or in any combination(s), (ii) a separate feed of a brominating agent, and (iii) a separate feed of a chlorinating agent, in proportions such that during all or substantially all of the time the concurrent feeding is occurring halogenation of the 5-hydrocarbyl hydantoin and/or 5,5-dihydrocarbyl hydantoin occurs and resultant halogenated product precipitates in the liquid phase of an aqueous reaction mixture, and in which the pH of the liquid phase is continuously or substantially continuously maintained in the range of about 2.0 to about 8.0 during all or substantially all of the time the concurrent feeding is occurring. Also provided by this invention is a composition of matter which is a halogenated 5-hydrocarbyl hydantoin or a halogenated 5,5-dihydrocarbyl hydantoin, which is a mixture of the 1,3-dibromo-, 1,3-dichloro-, and/or N,N′-bromochloro-species of the halogenated hydantoin.
摘要翻译：本发明提供了至少一种5-烃基乙内酰脲和/或至少一种5,5-二烃基乙内酰脲N-卤化的方法。该方法同时进料到反应区（i）水，无机碱和5,5-二甲基乙内酰脲，这些分别单独和/或以任何组合进料，（ii）单独的溴化剂进料和（iii）氯化剂的单独进料，其比例使得在所有或基本上所有时间内同时进料发生5-烃基乙内酰脲和/或5,5-二烃基乙内酰脲的卤化，得到的卤代产物沉淀在水性反应混合物的液相中，并且其中液相的pH在所有或基本上所有的同时进料期间连续地或基本上连续地保持在约2.0至约8.0的范围内。本发明还提供了一种物质组合物，其是卤代5-烃基乙内酰脲或卤代的5,5-二烃基乙内酰脲，其是1,3-二溴 - ，1,3-二氯 - 和/ 或卤代乙内酰脲的N，N'-溴氯物质。

3. 发明授权

US06809205B1 Process for producing N-halogenated organic compounds 失效
标题翻译：制备N-卤代有机化合物的方法
公开(公告)号：US06809205B1
公开(公告)日：2004-10-26
申请号：US09484844
申请日：2000-01-18
申请人： Hassan Y. Elnagar , Bruce C. Peters , Edgar E. Spielman, Jr. , Dustin H. Thomas
发明人： Hassan Y. Elnagar , Bruce C. Peters , Edgar E. Spielman, Jr. , Dustin H. Thomas
IPC分类号： C07D23374
CPC分类号： C07D233/82
摘要： The process enables highly effective N-halogenation of a compound having one or more halogenatable amido or imido functional groups in the molecule. The process involves, for example, concurrently feeding into a reactor (i) water, inorganic base, and the compound to be N-halogenated, e.g., a hydantoin, and a feed of (ii) a brominating agent and/or a chlorinating agent. The proportions of these feeds are such that the pH is kept within the range of ca. 5.5-8.5 (preferably 6.5-8.5, and most preferably 6.8-7.2) and one or more of the amido or imido nitrogen atoms is substituted by a bromine or chlorine atom. A feature of the process is that it can be conducted at elevated temperatures as high as about 90° C. without appreciable thermal decomposition of reactants or product. The resultant product continuously precipitates in high yield and purity. Moreover, products can be produced that are very pale yellow to almost pure white in appearance. Further, the process has been found capable of producing 1,3-dibromo-5,5-dimethylhydantoin with far larger particle sizes than previously produced on a commercial basis.
摘要翻译：该方法能够在分子中具有一个或多个可卤化酰氨基或亚氨基官能团的化合物的高效N-卤化。该方法包括例如同时进料到反应器（i）水，无机碱和待卤化的化合物，例如乙内酰脲，和（ii）溴化剂和/或氯化剂的进料。这些进料的比例使得pH保持在约 5.5-8.5（优选6.5-8.5，最优选6.8-7.2），一个或多个酰胺基或亚氨基氮原子被溴或氯原子取代。该方法的特征在于它可以在高达约90℃的高温下进行，而没有明显的反应物或产物的热分解。所得产物以高产率和纯度连续沉淀。此外，可以生产非常浅黄色至几乎纯白色的产品。此外，已经发现该方法能够生产出比以前在商业上生产的粒度大得多的1,3-二溴-5,5-二甲基乙内酰脲。

4. 发明授权

US5690862A No flash point solvent system containing normal propyl bromide 失效
标题翻译：无闪点溶剂体系含正丙基溴
公开(公告)号：US5690862A
公开(公告)日：1997-11-25
申请号：US551641
申请日：1995-11-01
申请人： Robert M. Moore, Jr. , Robert L. Davis , William E. Moehle , Burnell Lee , Edgar E. Spielman, Jr.
发明人： Robert M. Moore, Jr. , Robert L. Davis , William E. Moehle , Burnell Lee , Edgar E. Spielman, Jr.
IPC分类号： C11D7/30 , C11D7/24 , C11D7/28 , C11D7/50 , C23G5/028
CPC分类号： C11D7/5018 , C11D7/24 , C11D7/28
摘要： This invention relates to a solvent system which is non-flammable and which is comprised of a hydrocarbon solvent having a flash point less than about 38.degree. C. and a second solvent containing at least 90 wt % n-propyl bromide, the second solvent being present in an amount sufficient to obtain no flash point for the solvent system when tested in accordance with ASTM D-93 and the second solvent being the sole halogenated solvent and flash point suppressor in the solvent system.
摘要翻译：本发明涉及不燃的溶剂体系，其由闪点小于约38℃的烃溶剂和含有至少90重量％正丙基溴的第二溶剂组成，第二溶剂为存在的量足以在根据ASTM D-93测试时获得溶剂系统的闪点，而第二溶剂是溶剂体系中唯一的卤化溶剂和闪点抑制剂。

5. 发明授权

US4873377A Preparation of dibromoneopentyl glycol 失效
标题翻译：二溴新戊二醇的制备
公开(公告)号：US4873377A
公开(公告)日：1989-10-10
申请号：US251787
申请日：1988-10-03
申请人： John Y. Lee , Edgar E. Spielman, Jr.
发明人： John Y. Lee , Edgar E. Spielman, Jr.
IPC分类号： C07C29/62
CPC分类号： C07C29/62
摘要： This invention relates to a process for preparing DBNPG by brominating pentaerythritol with HBr in the presence of a catalyst and solvent wherein water is present during the process. The reaction mass is neutralized prior to recovery of the DBNPG from the reaction mass.
摘要翻译：本发明涉及一种在催化剂和溶剂存在下用HBr溴化季戊四醇制备DBNPG的方法，其中在该过程中存在水。在从反应物质中回收DBNPG之前中和反应物质。

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