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1. 发明授权

US09663875B2 Sheets and fibrids comprising a mixture of poly(m-phenylene isophthalamide) and copolymer made from 5(6)-amino-2-(p-aminophenyl)benzimidazole 有权
公开(公告)号：US09663875B2
公开(公告)日：2017-05-30
申请号：US14526643
申请日：2014-10-29
申请人： E I DU PONT DE NEMOURS AND COMPANY
发明人： Kiu-Seung Lee
IPC分类号： D21H21/18 , D21H17/56 , D01F6/60 , D01F6/74 , D01F6/80 , D01D5/40 , D01F6/90 , C08G69/32 , C08G73/18 , C08L77/10 , C08L79/04 , D21H15/10 , D21H21/28
CPC分类号： D01D5/40 , C08G69/32 , C08G73/18 , C08L77/10 , C08L79/04 , D01F6/605 , D01F6/74 , D01F6/805 , D01F6/905 , D21H15/10 , D21H21/28 , Y10T428/2982
摘要： This invention relates to a sheet comprising fibers and fibrids wherein either comprises a mixture of at least a first polymer and a second polymer; the first polymer derived from the reaction of one or more amine monomers and a plurality of acid monomers, wherein the one or more amine monomers includes at least 60 mole percent 5(6)-amino-2-(p-aminophenyl)benzimidazole, based on the total amount of amine monomers; and the plurality of acid monomers include those having a structure of Cl—CO—Ar1—CO—Cl & Cl—CO—Ar2—CO—Cl wherein Ar1 is an aromatic group having para-oriented linkages and Ar2 is an aromatic group having meta-oriented linkages, and wherein the plurality of acid monomers has at least 50 mole percent of the monomer containing aromatic group Ar2; and the second polymer derived from the reaction of metaphenylene diamine and isophthaloyl chloride.

2. 发明授权

US08822632B2 Process for forming an aramid copolymer 有权
标题翻译：形成芳族聚酰胺共聚物的方法
公开(公告)号：US08822632B2
公开(公告)日：2014-09-02
申请号：US13559681
申请日：2012-07-27
申请人： Kiu-Seung Lee
发明人： Kiu-Seung Lee
IPC分类号： C08G69/28
CPC分类号： C08G69/04 , C08G69/32 , C08G73/18
摘要： The invention concerns processes for forming a polymer comprising residues of 2-(4-amino phenyl)-5 (6) amino benzimidazole (DAPBI), paraphenylene diamine, and terephthaloyl dichloride, the process comprising: (a) forming a solution of oligomers having chloride end groups from one mole of paraphenylene diamine and 1.3 to 5 moles of terephthaloyl dichloride a solvent system comprising an organic solvent and an inorganic salt; and (b) adding DAPBI and terephthaloyl dichloride to the solution of oligomers to form a polymer.
摘要翻译：本发明涉及形成包含2-（4-氨基苯基）-5（6）氨基苯并咪唑（DAPBI），对苯二胺和对苯二酰氯的残基的聚合物的方法，该方法包括：（a）形成具有 1摩尔对苯二胺和1.3-5摩尔对苯二酰氯的氯化物端基，包含有机溶剂和无机盐的溶剂体系; 和（b）向低聚物溶液中加入DAPBI和对苯二甲酰氯以形成聚合物。

3. 发明授权

US10301747B2 Fiber comprising a mixture of poly(m-phenylene isophthalamide) and copolymer made from 5(6)-amino-2-(p-aminophenyl)benzimidazole 有权
公开(公告)号：US10301747B2
公开(公告)日：2019-05-28
申请号：US14526635
申请日：2014-10-29
申请人： E I DU PONT DE NEMOURS AND COMPANY
发明人： Kiu-Seung Lee
IPC分类号： D01F8/04 , D01F8/12 , D01D5/06 , D01F6/60 , D01F6/74 , D01F6/80 , D01F6/90 , C08G73/18 , C08L79/08
摘要： The invention concerns fiber, and a process for making same, the fiber comprising a mixture of at least a first polymer and a second polymer, the first polymer having a structure derived from the reaction of one or more amine monomers and a plurality of acid monomers, wherein the one or more amine monomers includes at least 60 mole percent 5(6)-amino-2-(p-aminophenyl)benzimidazole, and the plurality of acid monomers include those having a structure of Cl—CO—Ar1—CO—Cl and Cl—CO—Ar2—CO—Cl wherein Ar1 is an aromatic group having para-oriented linkages and Ar2 is an aromatic group having meta-oriented linkages, and wherein the plurality of acid monomers has at least 50 mole percent of the monomer containing aromatic group Ar2; and the second polymer has a structure derived from the reaction of metaphenylene diamine and isophthaloyl chloride. This fiber has use in heat-resistant protective apparel fabrics and garments.

4. 发明授权

US09127143B2 Aramid copolymer 有权
标题翻译：芳族聚酰胺共聚物
公开(公告)号：US09127143B2
公开(公告)日：2015-09-08
申请号：US13559696
申请日：2012-07-27
申请人： Kiu-Seung Lee
发明人： Kiu-Seung Lee
IPC分类号： C08K5/34 , C08K5/20 , C08K3/16 , C08G64/00 , C08G73/18 , C08G75/00 , C08K5/3415 , C08G69/32 , C08G69/26
CPC分类号： C08K5/3415 , C08G69/265 , C08G69/32 , C08G73/18 , C08K3/16 , C08K5/20 , C08L77/10 , C08L79/04
摘要： The invention concerns polymer powder comprising 2-(4-amino phenyl)-5 (6) amino benzimidazole (DAPBI), paraphenylene diamine, and terephthaloyl dichloride, capable of being dissolved in a solvent system comprising (i) N-methyl-2-pyrrolidone (NMP) or dimethylacetamide (DMAC) and (ii) an inorganic salt; wherein said polymer is capable of being redissolved in said solvent system after said polymer has been removed from said solvent system.
摘要翻译：本发明涉及能够溶解在溶剂体系中的包含2-（4-氨基苯基）-5（6）氨基苯并咪唑（DAPBI），对苯二胺和对苯二甲酰氯的聚合物粉末，其包括（i）N-甲基-2- 吡咯烷酮（NMP）或二甲基乙酰胺（DMAC）和（ii）无机盐; 其中所述聚合物能够在从所述溶剂体系中除去所述聚合物之后再溶解在所述溶剂体系中。

5. 发明授权

US08716432B2 Process for forming an aramid copolymer 有权
标题翻译：形成芳族聚酰胺共聚物的方法
公开(公告)号：US08716432B2
公开(公告)日：2014-05-06
申请号：US13559684
申请日：2012-07-27
申请人： Kiu-Seung Lee
发明人： Kiu-Seung Lee
IPC分类号： C08G64/00 , C08G63/02
CPC分类号： C08G69/00 , C08G69/32 , C08G73/18
摘要： The invention concerns processes for forming a polymer comprising residues of 2-(4-amino phenyl)-5(6) amino benzimidazole (DAPBI), paraphenylene diamine (PPD), and terephthaloyl dichloride, comprising the steps of: (a) forming a slurry of DAPBI in a solvent system comprising an organic solvent and an inorganic salt; (b) adding terephthaloyl dichloride to the slurry terephthaloyl dichloride in the amount of up to one-half mole for every mole of DAPBI in the slurry; (c) agitating the slurry to react the DAPBI and terephthaloyl dichloride to form an oligomeric solution; (d) adding PPD to the oligomeric solution and agitating until substantially all of the PPD is dissolved, (e) adding terephthaloyl dichloride in an amount of greater than one mole for every mole of PPD in the solution to form a prepolymer solution; and (e) agitating the prepolymer solution to form a polymer.
摘要翻译：本发明涉及形成包含2-（4-氨基苯基）-5（6）氨基苯并咪唑（DAPBI），对苯二胺（PPD）和对苯二酰氯的残留物的聚合物的方法，包括以下步骤：（a） DAPBI的浆料在包含有机溶剂和无机盐的溶剂体系中; （b）将浆料中对苯二甲酰氯的对苯二甲酰氯加入到浆料中每摩尔DAPBI达二摩尔量; （c）搅拌浆料以使DAPBI和对苯二酰氯反应形成低聚溶液; （d）将PPD加入到低聚溶液中并搅拌直到基本上所有的PPD溶解，（e）在溶液中每摩尔PPD加入大于1摩尔的对苯二甲酰氯以形成预聚物溶液; 和（e）搅拌预聚物溶液以形成聚合物。

6. 发明授权

US07772441B1 Process for producing 3,4′ dihydroxybenzophenone 有权
标题翻译：制备3,4-二羟基二苯甲酮的方法
公开(公告)号：US07772441B1
公开(公告)日：2010-08-10
申请号：US12393310
申请日：2009-02-26
申请人： Kiu-Seung Lee , Michael Francis Vincent
发明人： Kiu-Seung Lee , Michael Francis Vincent
IPC分类号： C07C45/00
CPC分类号： C07C45/46 , C07C49/83
摘要： A process for synthesizing 3,4′dihydroxybenzophenone by reacting meta-hydroxybenzoic acid and phenol in the presence of a Lewis acid, and a protonic acid. Upon completion of the reaction the Lewis and protonic acids are removed and then the reaction product of 3,4′dihydroxybenzophenone is contacted with water (at temperature not greater than 10° C.) and ammonium hydroxide followed by filtration.
摘要翻译：在路易斯酸和质子酸存在下，使间羟基苯甲酸和苯酚反应合成3,4-二羟基二苯甲酮的方法。反应完成后，除去Lewis和质子酸，然后使3,4-二羟基二苯甲酮的反应产物与水（不高于10℃的温度）和氢氧化铵接触，然后过滤。

7. 发明申请

US20080014440A1 Polyoxadiazole composite fibers 审中-公开
标题翻译：聚二唑复合纤维
公开(公告)号：US20080014440A1
公开(公告)日：2008-01-17
申请号：US11486243
申请日：2006-07-13
申请人： Kiu-Seung Lee , Jon David Hartzler
发明人： Kiu-Seung Lee , Jon David Hartzler
IPC分类号： D02G3/00
CPC分类号： D01F6/94 , Y10T428/2933
摘要： The present invention is directed to preparation of a polyoxadiazole composite fiber and a flexible chain polymer which is not a polyoxadiazole polymer and articles produced therefrom.
摘要翻译：本发明涉及制备聚恶二唑复合纤维和不是聚恶二唑聚合物的柔性链聚合物及其制备的制品。

8. 发明申请

US20070255037A1 Two step preparation of random polyoxadiazole copolymer and articles resulting therefrom 有权
标题翻译：二步制备无规聚二唑共聚物和由此产生的制品
公开(公告)号：US20070255037A1
公开(公告)日：2007-11-01
申请号：US11414959
申请日：2006-05-01
申请人： Kiu-Seung Lee , Harry Smith
发明人： Kiu-Seung Lee , Harry Smith
IPC分类号： C08G63/68
CPC分类号： C08G73/08
摘要： In a preparation of random polyoxadiazole copolymer by reaction of a mixture of oleum, hydrazine sulfate, terephthalic acid, and isophthalic acid, the improvement requires the addition of oleum in more than one step.
摘要翻译：在通过发烟硫酸盐，硫酸肼，对苯二甲酸和间苯二甲酸的混合物的反应制备无规聚二唑共聚物时，改进需要在多于一个步骤中加入发烟硫酸。

9. 发明申请

US20070015903A1 Method of making aromatic dihydroxy diacid dihalides and precipitates resulting therefrom 有权
公开(公告)号：US20070015903A1
公开(公告)日：2007-01-18
申请号：US11180241
申请日：2005-07-13
申请人： Kiu-Seung Lee
发明人： Kiu-Seung Lee
IPC分类号： C08F6/00
CPC分类号： C07C51/64 , C07C51/60 , Y10T428/31504 , Y10T428/31507 , C07C65/11 , C07C65/05
摘要： A method of making an aromatic dihydroxy diacid dihalide comprises forming a solution of an aromatic dihydroxy diacid in a solvent, contacting the aromatic dihydroxy diacid solution with a halogenating agent; heating the solution under an inert atmosphere to convert from 50 and 100 percent of the aromatic dihydroxy diacid to aromatic dihydroxy diacid dihalide, wherein the time required for the conversion is less than 4 hours, and removing at least a portion of the solvent.

10. 发明申请

US20070015896A1 Dihydroxy aramid polymers 审中-公开
标题翻译：二羟基芳族聚酰胺聚合物
公开(公告)号：US20070015896A1
公开(公告)日：2007-01-18
申请号：US11180152
申请日：2005-07-13
申请人： Kiu-Seung Lee
发明人： Kiu-Seung Lee
IPC分类号： C08G64/00
CPC分类号： C08G69/32
摘要： The present invention relates to dihydroxy aramid polymers such as formed by contacting an aromatic diamine with an aromatic dihydroxy diacid dihalide.
摘要翻译：本发明涉及通过使芳族二胺与芳族二羟基二酸二卤化物接触而形成的二羟基芳族聚酰胺聚合物。

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