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1. 发明授权

US07939573B2 Modified blowing agent surface-treated with metallic siloxylated compound and polymer resin composition including the same 有权
标题翻译：用金属硅氧烷化化合物表面处理的改性发泡剂和包含它们的聚合物树脂组合物
公开(公告)号：US07939573B2
公开(公告)日：2011-05-10
申请号：US11873195
申请日：2007-10-16
申请人： Yong Yon Jo , Heung Oh Son
发明人： Yong Yon Jo , Heung Oh Son
IPC分类号： C08J9/06
CPC分类号： C08J9/06 , C08J9/08 , C08J9/10 , C08K9/06 , Y10T428/2991 , Y10T428/2995 , Y10T428/2998
摘要： Provided is a modified blowing agent, wherein the surface of a blowing agent powder is coated with a metallic siloxylated compound. When the modified blowing agent is included in a polymer resin, dispersibility of the modified blowing agent is excellent in the polymer resin and fluidity of the polymer resin is improved in an extrusion molding machine and an injection molding machine, and thus productivity and processability can be improved. In addition, the foam that is formed using the polymer resin composition including the modified blowing agent has excellent tear strength, durability, and masking sound properties due to fine and uniform size of foam cells and increased number of foam cells per unit surface area.
摘要翻译：提供了一种改性发泡剂，其中发泡剂粉末的表面涂覆有金属硅氧烷化化合物。当改性发泡剂包含在聚合物树脂中时，改性发泡剂的分散性在聚合物树脂中是优异的，并且在挤出成型机和注射成型机中聚合物树脂的流动性提高，因此生产率和加工性可以改进。此外，使用包含改性发泡剂的聚合物树脂组合物形成的泡沫由于泡沫单元的细小且均匀的尺寸和每单位表面积的泡沫数量增加而具有优异的撕裂强度，耐久性和掩蔽声性能。

2. 发明授权

US07642376B2 Methods and devices for preparing biuret and cyanuric acid 失效
标题翻译：制备缩二脲和氰尿酸的方法和装置
公开(公告)号：US07642376B2
公开(公告)日：2010-01-05
申请号：US11837242
申请日：2007-08-10
申请人： Chun Hyuk Lee , Min Seung Shin , Hoon Lee
发明人： Chun Hyuk Lee , Min Seung Shin , Hoon Lee
IPC分类号： C07C273/18 , C07D251/32
CPC分类号： C07D251/32 , B01D9/0013 , B01D9/004 , B01D9/0059 , B01J2219/00006 , B01J2219/0004 , C07C275/64
摘要： Provided are methods and devices for preparing biuret and cyanuric acid by thermal decomposition of urea. Specifically, a product of thermal decomposition is cooled to precipitate a crystal and the precipitated crystal is dissolved using an alkali aqueous solution and cooled to obtain biuret having high purity. Furthermore, the cyanuric acid that is one of byproducts by the thermal decomposition of urea is effectively recovered with high purity.
摘要翻译：提供了通过尿素热分解制备缩二脲和氰尿酸的方法和装置。具体地说，将热分解产物冷却，析出晶体，用碱水溶液溶解析出的结晶，冷却，得到纯度高的缩二脲。此外，作为尿素的热分解的副产物之一的氰尿酸以高纯度被有效地回收。

3. 发明授权

US07422727B2 Apparatus for preparing hydrazo-dicarbonamide using urea as starting material 有权
标题翻译：使用尿素作为起始原料制备二氢萘二甲酰胺的装置
公开(公告)号：US07422727B2
公开(公告)日：2008-09-09
申请号：US11747596
申请日：2007-05-11
申请人： Chun-hyuk Lee , Sang-Jin Han
发明人： Chun-hyuk Lee , Sang-Jin Han
IPC分类号： B01J8/04 , B01J8/00 , B01J10/00 , C07C281/00
CPC分类号： C07C281/06
摘要： The present invention relates to a method and apparatus for preparing hydrazodicarbonamide using urea as starting material economically and environmentally desirably. The apparatus includes a pyrolysis furnace to obtain biuret and ammonia by pyrolyzing urea; a recrystallization reactor to purify the biuret obtained from the pyrolysis furnace; a first reactor to obtain an metal monohalobiuret salt by reacting the biuret with metal hypohalogen compound or with halogen and base; a second reactor to synthesize the hydrazodicarbonamide by reacting the monohalobiuret metal salt with ammonia; and an ammonia evaporator to separate the excess ammonia from hydrazodicarbonamide and to supply the separated ammonia to an ammonia concentrator.
摘要翻译：本发明涉及一种以经济和环保方式使用尿素作为原料制备肼基二酰胺的方法和装置。该装置包括热解炉，通过热解尿素获得缩二脲和氨; 用于纯化从热解炉获得的缩二脲的再结晶反应器; 通过使缩二脲与金属低卤化合物或与卤素和碱反应获得金属单卤代硼酸盐的第一反应器; 第二反应器，通过使单卤代硼烷金属盐与氨反应合成肼二酰胺; 和氨蒸发器，以将过量的氨与肼基二酰胺分离，并将分离的氨供应到氨浓缩器。

4. 发明申请

US20050107566A1 Method for preparing hydrazodicarbonamide using biuret as starting material 有权
标题翻译：使用缩二脲作为原料制备肼基二酰胺的方法
公开(公告)号：US20050107566A1
公开(公告)日：2005-05-19
申请号：US11015853
申请日：2004-12-17
申请人： Chun-Hyuk Lee , Sang-Jin Han
发明人： Chun-Hyuk Lee , Sang-Jin Han
IPC分类号： C07C231/12 , C07B61/00 , C07C281/06 , C08G18/81
CPC分类号： C07C281/06
摘要： The method for preparing hydrazodicarbonamide(HDCA) using biuret as a starting material is disclosed. The method comprises the steps of; obtaining metal monohalobiuret salt by reacting a biuret with a metal hypohalogen compound, or by reacting the biuret with a halogenating agent and a base; and reacting the obtained metal monohalobiuret salt with ammonia, wherein the hydrazodicarbonamide is produced in the presence of a catalyst including bromine or iodine atom and generating bromine or iodine ion during the reaction.
摘要翻译：公开了使用缩二脲作为原料制备肼基二酰胺（HDCA）的方法。该方法包括以下步骤：通过使缩二脲与金属低卤化合物反应，或通过使缩二脲与卤化剂和碱反应获得金属单卤代硼酸盐; 并使所得金属单卤代硼酸盐与氨反应，其中在反应期间在包含溴或碘原子的催化剂存在下产生肼基二酰胺并产生溴或碘离子。

5. 发明授权

US07465828B2 Method for preparing hydrazodicarbonamide using biuret as starting material 有权
标题翻译：使用缩二脲作为原料制备肼基二酰胺的方法
公开(公告)号：US07465828B2
公开(公告)日：2008-12-16
申请号：US11015853
申请日：2004-12-17
申请人： Chun-Hyuk Lee , Sang-Jin Han
发明人： Chun-Hyuk Lee , Sang-Jin Han
IPC分类号： C07C281/06
CPC分类号： C07C281/06
摘要： The method for preparing hydrazodicarbonamide (HDCA) using biuret as a starting material is disclosed. The method comprises the steps of; obtaining metal monohalobiuret salt by reacting a biuret with a metal hypohalogen compound, or by reacting the biuret with a halogenating agent and a base; and reacting the obtained metal monohalobiuret salt with ammonia, wherein the hydrazodicarbonamide is produced in the presence of a catalyst including bromine or iodine atom and generating bromine or iodine ion during the reaction.
摘要翻译：公开了使用缩二脲作为原料制备肼基二酰胺（HDCA）的方法。该方法包括以下步骤：通过使缩二脲与金属低卤化合物反应，或通过使缩二脲与卤化剂和碱反应获得金属单卤代硼酸盐; 并使所得金属单卤代硼酸盐与氨反应，其中在反应期间在包含溴或碘原子的催化剂存在下产生肼基二酰胺并产生溴或碘离子。

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