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21.发明授权Biodegradable and biocompatible polymeric microspheres encapsulating Salmonella enteritidis bacteria 失效可生物降解和生物相容的聚合物微球囊封肠炎肠炎沙门氏菌公开(公告)号：US07132108B1
公开(公告)日：2006-11-07
申请号：US09958210
申请日：2000-02-08
申请人： Yi-Yan Yang , Jimmy Kwang , Xueqin Chen , Tai-Shung Chung , Wei Liu
发明人： Yi-Yan Yang , Jimmy Kwang , Xueqin Chen , Tai-Shung Chung , Wei Liu
IPC分类号： A61K39/112 , A61K9/52 , A61K9/32 , C12P1/00
CPC分类号： A61K9/1647 , A61K9/0024 , A61K9/0056 , A61K39/0275 , A61K2039/521 , A61K2039/542 , A61K2039/552 , Y02A50/482
摘要： Biodegradable and biocompatible polymeric microspheres encapsulating Salmonella enteritidis are administered to chickens to provide the chickens with sustained protection against S. enteritidis infections.
摘要翻译： 向鸡中施用包封肠炎沙门氏菌的可生物降解和生物相容的聚合物微球，为鸡提供持续保护以防止肠炎沙门氏菌感染。
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公开(公告)号：US5558936A
公开(公告)日：1996-09-24
申请号：US739063
申请日：1991-08-01
IPC分类号： B01D67/00 , B01D69/08 , B01D69/12 , B01D71/64 , C08L79/08 , D02G3/02 , B01D39/00 , B01D63/02
CPC分类号： B01D67/0088 , B01D69/08 , B01D69/12 , B01D71/64 , C08L79/08 , Y10T428/2938 , Y10T428/2969 , Y10T428/2975
摘要： PVP-coated asymmetric hollow fibers made from SIXEFT.TM.-Durene, a polyimide made from 2,2-bis[3,4-dicarboxyphenyl] hexafluoropropane dianhydride and 2,3,5,6-tetramethylphenylene diamine monomers, and a process for making such fibers. These coated fibers have a separation factor that exceeds 6 for oxygen and nitrogen and a permeance of at least about 10 ppm cc(STP)/(sec cm.sup.2 cm-Hg). A polymer dope comprising SIXEF.TM.-Durene in a solvent system containing N-methyl-2-pyrrolidone ("NMP") and an organic acid such as propionic acid ("PA") is prepared by polymerizing the polyimide monomers in NMP to form a polyamic acid polymer and imidizing this polymer using the acid anhydride. Water released from the polymer in the imidization reaction converts the anhydride to acid. The dope is wet-spun into hollow fibers; the fibers are coagulated in water. The fibers are then evenly coated with PVP, preferably by dipping the fibers in a dilute PVP solution.
摘要翻译： 由SIXEFT TM -Durene制造的PVP涂布的不对称中空纤维，由2,2-双[3,4-二羧基苯基]六氟丙烷二酐和2,3,5,6-四甲基苯二胺单体制成的聚酰亚胺及其制备方法 纤维。 对于氧和氮，这些涂覆的纤维具有超过6的分离因子，并且至少约10ppm cc（STP）/（seccm 2 cm-Hg）的渗透率。 在含有N-甲基-2-吡咯烷酮（“NMP”）和有机酸如丙酸（“PA”）的溶剂体系中制备包含SIXEF TM -Durene的聚合物涂料，其通过在NMP中聚合聚酰亚胺单体形成 聚酰胺酸聚合物，并使用酸酐对该聚合物进行酰亚胺化。 在酰亚胺化反应中从聚合物中释放的水将酸酐转化成酸。 将纺丝液湿纺成中空纤维; 纤维在水中凝结。 然后将纤维均匀地涂覆有PVP，优选通过将纤维浸入稀释的PVP溶液中。
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公开(公告)号：US5413852A
公开(公告)日：1995-05-09
申请号：US738996
申请日：1991-08-01
CPC分类号： B01D71/64 , B01D67/0011 , B01D67/0016 , B01D69/08 , B01D69/087 , B01D2323/08 , B01D2325/022 , Y10T428/2913 , Y10T428/2935 , Y10T428/2969 , Y10T428/2973 , Y10T428/2975
摘要： Asymmetric hollow fibers of SIXEF.TM.-Durene, a polyimide made from 2,2-bis[3,4-dicarboxyphenyl] hexafluoropropane dianhydride and 2,3,5,6-tetramethylphenylene diamine monomers, and a process for making such fibers. These uncoated fibers have a separation factor that exceeds 4 for oxygen and nitrogen and a permeance of at least about 50 ppm cc(STP)/(sec cm.sup.2 cm-Hg). A polymer dope comprising SIXEF.TM.-Durene in a solvent system containing N-methyl-2-pyrrolidone ("NMP") and an organic acid such as propionic acid ("PA") is prepared by polymerizing the polyimide monomers in NMP to form a polyamic acid polymer and imidizing this polymer using the acid anhydride. Water released from the polymer in the imidization reaction converts the anhydride to the organic acid. The dope is wet-spun into hollow fibers using a core solvent such as PA or glycerine; the fibers are coagulated in water.
摘要翻译： SIXEF TM -Durene的不对称中空纤维，由2,2-双[3,4-二羧基苯基]六氟丙烷二酐和2,3,5,6-四甲基苯二胺单体制成的聚酰亚胺以及制造这种纤维的方法。 这些未涂布的纤维对于氧和氮具有超过4的分离因子，并且具有至少约50ppm cc（STP）/（sec cm 2 cm-Hg）的渗透性。 在含有N-甲基-2-吡咯烷酮（“NMP”）和有机酸如丙酸（“PA”）的溶剂体系中制备包含SIXEF TM -Durene的聚合物涂料，其通过在NMP中聚合聚酰亚胺单体形成 聚酰胺酸聚合物，并使用酸酐对该聚合物进行酰亚胺化。 在酰亚胺化反应中从聚合物中释放的水将酸酐转化为有机酸。 使用核溶剂如PA或甘油将纺丝液湿纺成中空纤维; 纤维在水中凝结。
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公开(公告)号：US5324430A
公开(公告)日：1994-06-28
申请号：US25541
申请日：1993-03-03
摘要： A composite fiber or film for use in a fluid separation membrane made of PAN coated with an intermediate permeable material and further coated with a selective layer. The PAN fiber or film is pre-wet with perfluoroether prior to being coated with the intermediate material, to produce a membrane material having enhanced permeability. The selective layer produces a high separation factor.
摘要翻译： 用于由PAN涂覆有中间渗透性材料并进一步涂覆有选择层的PAN制成的流体分离膜的复合纤维或膜。 在涂覆中间材料之前，将PAN纤维或薄膜预湿润全氟醚，以产生具有增强的渗透性的膜材料。 选择层产生高分离因子。
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25.发明授权Fibers and fibrets from blends of polybezimidazoles and aromatic polyamides, aromatic polyamide-hydrazides or aromatic polyamides containing heterocyclic linkages 失效来自聚苯并咪唑和芳族聚酰胺的共混物的纤维和纤维，芳族聚酰胺 - 酰肼或含有杂环键的芳族聚酰胺
公开(公告)号：US5250633A
公开(公告)日：1993-10-05
申请号：US647392
申请日：1991-01-29
摘要： Fibers and fibrets of a novel miscible blend of component polymers comprising from about 5 weight percent to about 95 weight percent of a polybenzimidazole and from about 95 weight percent to about 5 weight percent of an aromatic polyamide, aromatic polyamide-hydrazide or aromatic polyamide containing heterocyclic linkages. Miscibility of the component polymers of the blend is indicated by infrared, X-Ray and Differential Scanning Calorimetry analyses and electron photomicrographs. In fibers or fibrets of a blend mostly comprised of a polybenzimidazole, it is preferred that the aromatic polyamide, aromatic polyamide-hydrazide or aromatic polyamide containing heterocyclic linkages be present in the blend in an amount sufficient to yield a blend with improved tensile properties compared to the polybenzimidazole and more thermally processable than the polybenzimidazole. The fibers or fibrets of the blend have a lower moisture regain than polybenzimidazole fibers or fibrets. In fibers or fibrets of a blend mostly comprised of an aromatic polyamide, aromatic polyamide-hydrazide or aromatic polyamide containing heterocyclic linkages, it is preferred that the polybenzimidazole be present in the blend in an amount sufficient to yield a blend with increased thermal stability and nonflammability compared to the aromatic polyamide, aromatic polyamide-hydrazide or aromatic polyamide containing heterocyclic linkages. The fibers or fibrets may be post-treated with heat or sulfuric acid in order to minimize their shrinkage when they are subsequently subjected to heat and in order to increase their resistance to solvents and acid.
摘要翻译： 包含约5重量％至约95重量％的聚苯并咪唑和约95重量％至约5重量％的芳族聚酰胺，芳族聚酰胺 - 酰肼或芳族聚酰胺含杂环的组分聚合物的新型可混溶共混物的纤维和纤维 联系。 通过红外，X射线和差示扫描量热法分析和电子显微照片表明共混物的组分聚合物的混溶性。 在主要由聚苯并咪唑组成的共混物的纤维或纤维中，优选芳香族聚酰胺，芳族聚酰胺 - 酰肼或芳族聚酰胺含杂环键以足以产生具有改进的拉伸性能的共混物的量存在于共混物中 聚苯并咪唑，并且比聚苯并咪唑更热可加工。 共混物的纤维或纤维层具有比聚苯并咪唑纤维或纤维的更低的回潮率。 在主要由芳族聚酰胺，芳族聚酰胺 - 酰肼或含有杂环键的芳族聚酰胺组成的共混物的纤维或纤维中，优选聚苯并咪唑以足以产生具有增加的热稳定性和不可燃性的共混物的量存在于共混物中 与芳族聚酰胺，芳族聚酰胺 - 酰肼或含有杂环键的芳族聚酰胺相比。 可以用热或硫酸对纤维或纤维素进行后处理，以便当它们随后经受热量时使其收缩最小化，以增加其对溶剂和酸的耐受性。
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公开(公告)号：US5209883A
公开(公告)日：1993-05-11
申请号：US686739
申请日：1991-04-17
摘要： Asymmetric hollow fibers comprising a fluoropolymer, and a process for making such fibers. The hollow fibers are useful for making fluid separation membranes, especially gas separation membranes. In one embodiment of the process of this invention, a polymer dope having a viscosity of about 3000 poise or greater is prepared by solvating the polymer in a solvent system containing about 40%-90% N-methyl-2-pyrrolidone and about 60%-10% propionic acid by weight. The dope is dry-jet wet-spun into hollow fibers using a water-NMP core solvent. The fibers are coagulated in methanol. The fibers are then coated with a highly permeable material.
摘要翻译： 包含氟聚合物的不对称中空纤维，以及制造这种纤维的方法。 中空纤维可用于制造流体分离膜，特别是气体分离膜。 在本发明方法的一个实施方案中，通过在包含约40％-90％N-甲基-2-吡咯烷酮和约60％-90％N-甲基-2-吡咯烷酮的溶剂体系中溶剂化聚合物来制备粘度为约3000泊或更高的聚合物涂料， -10％丙酸重量。 使用水-NON核心溶剂将纺丝液干喷入湿中空纤维。 纤维在甲醇中凝结。 然后用高度可渗透的材料涂覆纤维。
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27.发明授权
公开(公告)号：US5091087A
公开(公告)日：1992-02-25
申请号：US543920
申请日：1990-06-25
CPC分类号： H01M2/1653 , B01D67/003 , B01D71/62 , C08J9/26 , B01D2323/08 , B01D2323/10 , C08J2201/0462 , C08J2379/04
摘要： A microporous polybenzimidazole membrane having a uniform pore structure and a narrow pore size distribution, and a process for making the membrane. The process requires coating a polybenzimidazole powder with a high temperature stable polymer and compression molding the coated particles at a temperature in the approximate range of 435.degree.-450.degree. C. to form a sheet or membrane. The polymer is then extracted from the sheet, leaving a fine, uniform, polybenzimidazole microporous structure.
摘要翻译： 具有均匀孔结构和窄孔径分布的微孔聚苯并咪唑膜及其制造方法。 该方法需要用高温稳定的聚合物涂覆聚苯并咪唑粉末，并且在约435〜-450℃的温度范围内对涂覆的颗粒进行压缩成型以形成片或膜。 然后从片中提取聚合物，留下精细均匀的聚苯并咪唑微孔结构。
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28.发明授权
公开(公告)号：US5055116A
公开(公告)日：1991-10-08
申请号：US505099
申请日：1990-04-03
CPC分类号： C08G73/1039 , B01D71/64 , C08L79/08
摘要： The present invention provides for gas separation membranes which are engineered to have specific gas transport properties based on the blending of certain polymers. In preferred embodiments, the blended polymers are polyimides which have different molecular structures and different gas transport properties. Despite these differences, however, the polymers are completely miscible and can be effectively utilized to prepare gas separation membranes having specifically tailored properties.
摘要翻译： 本发明提供了气体分离膜，其被工程化以具有基于某些聚合物的共混的特定的气体输送性质。 在优选实施方案中，共混聚合物是具有不同分子结构和不同气体输送性质的聚酰亚胺。 然而，尽管存在这些差异，聚合物是完全可混溶的，并且可以有效地用于制备具有特别定制性质的气体分离膜。
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公开(公告)号：US4818318A
公开(公告)日：1989-04-04
申请号：US858900
申请日：1986-04-28
申请人： Paul E. McMahon , Tai-Shung Chung , Lincoln Ying
发明人： Paul E. McMahon , Tai-Shung Chung , Lincoln Ying
摘要： The instant invention involves a process used in preparing fibrous tows which may be formed into polymeric plastic composites. The process involves the steps of (a) forming a tow of strong filamentary materials; (b) forming a thermoplastic polymeric fiber; (c) intermixing the two tows; and (d) withdrawing the intermixed tow for further use.
摘要翻译： 本发明涉及用于制备可形成聚合塑料复合材料的纤维丝束的方法。 该方法包括以下步骤：（a）形成强丝状材料丝束; （b）形成热塑性聚合物纤维; （c）混合两条拖车; 和（d）取出混合的丝束供进一步使用。
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30.发明申请Preparation of Zeolitic Imidazolate Frameworks (ZIFs) - Polybenzimidazole Mixed-Matrix Composite and Application for Gas and Vapor Separation 审中-公开沸石咪唑化合物框架（ZIF） - 聚苯并咪唑混合基质复合材料的制备及气体和气相分离的应用公开(公告)号：US20130305920A1
公开(公告)日：2013-11-21
申请号：US13983907
申请日：2012-02-06
申请人： Tingxu Yang , Youchang Xiao , Tai-Shung Chung
发明人： Tingxu Yang , Youchang Xiao , Tai-Shung Chung
IPC分类号： B01D53/22
CPC分类号： B01D53/228 , B01D67/0079 , B01D69/088 , B01D69/141 , Y02P20/132
摘要： The present invention presents a mixed-matrix composite material comprising a continuous phase and zeolitic imidazolate framework (ZIF) particles dispersed in the continuous phase, wherein the continuous phase is polybenzimidazole (PBI), methods for making the mixed-matrix composite material, and methods for separating gas or vapor from a mixture of gases or vapors using the mixed-matrix composite material.
摘要翻译： 本发明提供一种混合基质复合材料，其包含分散在连续相中的连续相和沸石咪唑化物骨架（ZIF）颗粒，其中连续相是聚苯并咪唑（PBI），制备混合基质复合材料的方法和方法 用于使用混合基质复合材料从气体或蒸汽的混合物中分离气体或蒸汽。
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