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1. 发明授权

US4898924A Process for the production of biaxially oriented rigid rod heterocyclic liquid crystalline polymer films 失效
标题翻译：双轴取向刚性棒杂环液晶聚合物薄膜的生产工艺
公开(公告)号：US4898924A
公开(公告)日：1990-02-06
申请号：US295689
申请日：1989-01-11
申请人： Edward C. Chenevey , Edward R. Kafchinski
发明人： Edward C. Chenevey , Edward R. Kafchinski
IPC分类号： B29C55/28 , B29C55/00 , B29C55/12 , B29C55/26 , B29C71/02 , B29K81/00 , B29L7/00 , C08F134/04 , C08G61/10 , C08G61/12 , C08J5/18
CPC分类号： C08J5/18 , B29C55/005 , B29C55/12 , B29C55/26 , B29K2079/00 , B29K2081/00 , B29K2105/0079 , C08J2379/04
摘要： A process is disclosed for the production of biaxially oriented liquid crystal films. The process includes:(i) forming an anisotropic dope from a polymerization solution of rigid rod heterocyclic liquid crystalline polymers such as poly{[benzo(1,2-d:4,5-d')bisthiazole-2,6-diyl] 1,4-phenylene}, its cis isomer or mixtures thereof, and poly{[benzo(1,2-d:4,5-d')bisoxazole-2,6-diyl] 1,4-phenylene}, its cis isomer or mixtures thereof, and a solvent such as polyphosphoric acid;(ii) extruding the dope to form a film;(iii) imparting biaxial orientation to the film to increase the transverse strength thereof;(iv) solidifying the biaxially oriented film; and(v) washing the solidified film to remove the solvent. Also disclosed is a liquid crystal film produced by the above process.

2. 发明授权

US4321182A Stable non-corrosive solution of polybenzimidazole suitable for use in the formation of shaped articles 失效
标题翻译：适用于形成成型制品的聚苯并咪唑稳定的非腐蚀性溶液
公开(公告)号：US4321182A
公开(公告)日：1982-03-23
申请号：US260652
申请日：1981-05-04
申请人： Robert Davitt , Gordon W. Calundann , Edward C. Chenevey
发明人： Robert Davitt , Gordon W. Calundann , Edward C. Chenevey
IPC分类号： C08K5/098 , C08L79/04 , C08K5/34 , C08K5/17 , C08K5/36
CPC分类号： C08L79/04 , C08K5/098
摘要： An improved solution of a polybenzimidazole suitable for use in the formation of shaped articles (e.g. fibers, films, and the like) is provided which includes a minor amount of an organo-lithium compound (as defined) which has been found to be capable of inhibiting the separation of the solution into phases of greater and lesser concentrations of the polybenzimidazole upon the passage of time. In a preferred embodiment the organo-lithium compound is lithium stearate. Not only is stability imparted to the solution prior to the formation of a shaped article, but the potential for catastrophic corrosive stress cracking of stainless steel equipment in contact with the solution is eliminated such as that which may occur following the extended use of the common prior art additive, lithium chloride.
摘要翻译：提供了适用于成型制品（例如纤维，薄膜等）形成的聚苯并咪唑的改进溶液，其包括少量有机锂化合物（如所定义的），其已被发现能够抑制溶液在经过时间时分离出浓度较高和较低浓度的聚苯并咪唑的相。在优选的实施方案中，有机锂化合物是硬脂酸锂。在形成成型制品之前，不仅可以赋予溶液稳定性，而且消除与溶液接触的不锈钢设备的灾难性腐蚀性应力开裂的可能性，例如在普遍使用之后可能发生的可能性艺术添加剂，氯化锂。

3. 发明授权

US5672426A high barrier transparent films 失效
标题翻译：高阻隔透明膜
公开(公告)号：US5672426A
公开(公告)日：1997-09-30
申请号：US575845
申请日：1995-12-21
申请人： Subhash Makhija , M. Ishaq Haider , Edward C. Chenevey , Michael Jaffe
发明人： Subhash Makhija , M. Ishaq Haider , Edward C. Chenevey , Michael Jaffe
IPC分类号： C08G63/60 , C08J5/18 , B32B27/36 , B29C51/00 , C08G63/00
CPC分类号： C08J5/18 , C08G63/605 , C08J2367/02 , Y10T428/26
摘要： A process for making a transparent film comprising a liquid crystalline polymer, and a transparent film made thereby having high barrier properties. In this process, the LCP is dissolved in an appropriate solvent, then cast into a film at ambient or near-ambient temperatures. The film optionally may be dried at elevated temperatures and/or reduced pressures to remove the solvent. The film is then annealed at a temperature between the glass transition temperature (T.sub.g) and the melting point temperature (T.sub.m) of the polymer. The result is a highly transparent film having liquid crystalline morphology and high barrier properties.
摘要翻译：制造包含液晶聚合物的透明膜的方法和由此形成的具有高阻隔性的透明膜。在此过程中，将LCP溶于适当的溶剂中，然后在环境温度或接近环境温度下浇铸成膜。任选地可以在升高的温度和/或减压下干燥膜以除去溶剂。然后将膜在聚合物的玻璃化转变温度（Tg）和熔点温度（Tm）之间的温度下退火。结果是具有液晶形态和高阻隔性的高透明膜。

4. 发明授权

US5277981A Thermo-oxidatively stabilized polybenzimidazole-containing articles 失效
标题翻译：热氧化稳定的聚苯并咪唑制品
公开(公告)号：US5277981A
公开(公告)日：1994-01-11
申请号：US890752
申请日：1992-05-28
申请人： M. Ishaq Haider , Edward C. Chenevey
发明人： M. Ishaq Haider , Edward C. Chenevey
IPC分类号： C08J5/18 , C08L79/04 , D01F6/74 , D06M11/70 , B32B9/00
CPC分类号： C08J5/18 , C08L79/04 , D01F6/74 , D06M11/70 , C08J2379/04 , Y10T428/30
摘要： A process for enhancing the thermo-oxidation stability of a polybenzimidazole-containing article wherein the article contains from about 5 to about 100 weight percent of polybenzimidazole and from about 0 to about 95 weight percent of a thermoplastic polymer, by the steps of providing a phosphoric acid solution of about 2.0 to about 10.0 weight percent of acid; contacting the polybenzimidazole-containing article with the acid solution for sufficient time to produce an acid-treated article; drying the acid-treated article at a low temperature to remove excess acid; and heat treating the dried article at a temperature ranging from about 400.degree. to about 500.degree. C. in an inert atmosphere to form a phosphate barrier layer on the surface of the article, wherein the article retains at least about 50 percent of its weight after isothermal aging at about 600.degree. F. for a period of at least about 300 hours.
摘要翻译：一种用于增强含聚苯并咪唑的制品的热氧化稳定性的方法，其中所述制品含有约5至约100重量％的聚苯并咪唑和约0至约95重量％的热塑性聚合物，通过以下步骤：提供磷酸约2.0至约10.0重量％的酸的酸溶液; 使含有聚苯并咪唑的制品与酸溶液接触足够的时间以产生酸处理制品; 在低温下干燥酸处理制品以除去过量的酸; 并在惰性气氛中在约400℃至约500℃的温度范围内对干燥物品进行热处理，以在制品的表面上形成磷酸盐阻隔层，其中制品在其后保持至少约50％重量在约600华氏度的等温老化至少约300小时。

5. 发明授权

US4487735A Process for preparing film of poly{[benzo(1,2-d:4,5-d')bisthiazole-2,6-diyl]-1,4-phenylene}, its cis isomer or mixtures thereof 失效
标题翻译：制备聚{[苯并（1,2-d：4,5-d'）双噻唑-2,6-二基] -1,4-亚苯基}的膜的方法，其顺式异构体或其混合物
公开(公告)号：US4487735A
公开(公告)日：1984-12-11
申请号：US483797
申请日：1983-04-11
申请人： Edward C. Chenevey , Ronald Kafchinski
发明人： Edward C. Chenevey , Ronald Kafchinski
IPC分类号： C08G75/32 , C08J5/18 , C09K19/34 , C09K19/38 , B29D7/20
CPC分类号： C08J5/18 , C08G75/32 , C09K19/3497 , C09K19/3823 , C08J2381/00
摘要： A film of poly{[benzo(1,2-d:4,5-d')bisthiazole-2,6-diyl]-1,4-phenylene}, its cis isomer or mixtures thereof is formed by extruding a solution of the polymer on a casting roll which is rotating to yield a surface speed slightly greater than the rate of extrusion. The solution of the polymer may be prepared by dissolving the polymer in an appropriate solvent or by reacting the monomers in a selected reaction medium. The cast film is washed, subjected to an elevated temperature, preferably heat treated under tension, and recovered.
摘要翻译：聚{[苯并（1,2-d：4,5-d'）双噻唑-2,6-二基] -1,4-亚苯基}的薄膜，其顺式异构体或其混合物是通过将旋转的铸辊上的聚合物产生略大于挤出速率的表面速度。聚合物的溶液可以通过将聚合物溶解在合适的溶剂中或通过使选择的反应介质中的单体反应来制备。将流延膜洗涤，经受升高的温度，优选在张力下热处理并回收。

6. 发明授权

US5290884A Blends of polybenzimidazoles and aromatic polyamides, aromatic polyamide-hydrazides or aromatic polyamides containing heterocyclic linkages 失效
标题翻译：聚苯并咪唑和芳族聚酰胺，芳族聚酰胺 - 酰肼或含有杂环键的芳族聚酰胺的共混物
公开(公告)号：US5290884A
公开(公告)日：1994-03-01
申请号：US675782
申请日：1991-03-27
申请人： Gordon W. Calundann , Friedrich Herold , Edward C. Chenevey , Tai-Shung Chung
发明人： Gordon W. Calundann , Friedrich Herold , Edward C. Chenevey , Tai-Shung Chung
IPC分类号： C08L77/00 , C08L77/10 , C08L79/04 , C08L79/08 , C08L79/06 , C08G73/08 , C08L77/06
CPC分类号： C08L79/04 , C08L77/10
摘要： A novel miscible blend of component polymers comprised of 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 scanning electron photomicrographs. In a film or molded article 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 result in a blend with improved tensile properties compared to the polybenzimidazole and that is more thermally processable than the polybenzimidazole. In 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 result in a blend with increased thermal stability and nonflammability compared to the aromatic polyamide, aromatic polyamide-hydrazide or aromatic polyamide containing heterocyclic linkages. The blends, particularly in the form of films or molded articles, may be post-treated with heat or sulfonating agent in order to minimize their shrinkage when subsequently subjected to heat and in order to increase their resistance to solvents and acids.
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 - 酰肼或含有杂环键的芳族聚酰胺的组分聚合物的新型可混溶共混物。通过红外，X射线和差示扫描量热法分析和扫描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薄膜或模制品中，优选芳族聚酰胺，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拉伸强度的共混物的量存在于共混物中性能与聚苯并咪唑相比，并且比聚苯并咪唑更热可加工。在主要由芳族聚酰胺，芳族聚酰胺 - 酰肼或含有杂环键的芳香族聚酰胺组成的共混物中，优选聚苯并咪唑以足以导致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芳族聚酰胺，芳族聚酰胺 - 酰肼或含有杂环键的芳族聚酰胺。特别是薄膜或模制品形式的共混物可以用热或磺化剂进行后处理，以便在随后经受热时使其收缩率最小化，以增加其对溶剂和酸的耐受性。

7. 发明授权

US4005058A Process for the formation and recovery of poly(bisbenzimidazoenzophenanthroline) 失效
标题翻译：聚（双苯并咪唑并苯并菲菲）的形成和回收方法
公开(公告)号：US4005058A
公开(公告)日：1977-01-25
申请号：US655339
申请日：1976-02-05
申请人： Edward C. Chenevey , Harry T. Hanson
发明人： Edward C. Chenevey , Harry T. Hanson
IPC分类号： C08G73/20 , C08G20/00 , C08G20/20 , C08G20/32 , C08G33/02
CPC分类号： C08G73/20
摘要： An improved overall process is provided wherein poly(bisbenzimidazobenzophenanthroline) is formed on an expeditious basis and is recovered from the reaction mass in substantially pure form. Appropriate quantities of 1,4,5,8-tetracarboxy naphthalene dianhydride and 3,3',4,4' -tetraaminobiphenyl are condensed as defined) in a reaction zone while dissolved in molten antimony trichloride, and the resulting reaction mass containing the dissolved product is discharged into a precipitation zone containing hydrochloric acid (as defined). The resulting solid product is separated and dried. The liquid portion which is separated from the solid product contains antimony trichloride dissolved in hydrochloric acid and is subjected to distillation which substantially separates these components. The antimony trichloride is recycled to the reaction zone, and the hydrochloric acid is recycled to the precipitation zone.
摘要翻译：提供了一种改进的总体方法，其中快速形成聚（双苯并咪唑基苯并菲罗啉），并以基本上纯的形式从反应物质中回收。合适量的1,4,5,8-四羧基萘二酐和3,3'，4,4'-四氨基联苯在反应区中缩合，同时溶解在熔融的三氯化锑中，所得反应物质含有溶解的将产物排入含有盐酸的沉淀区（定义）。将所得固体产物分离并干燥。与固体产物分离的液体部分含有溶解在盐酸中的三氯化锑，并进行基本分离这些组分的蒸馏。将三氯化锑再循环至反应区，将盐酸再循环至沉淀区。

8. 发明授权

US5256760A Condensation copolymers with sequenced mer structure 失效
标题翻译：具有测序mer结构的缩合共聚物
公开(公告)号：US5256760A
公开(公告)日：1993-10-26
申请号：US884965
申请日：1992-05-15
申请人： Michael J. Jaffe , Marie Borzo , Edward C. Chenevey , Eui W. Choe , M. Ishaq Haider , Subhash Makhija
发明人： Michael J. Jaffe , Marie Borzo , Edward C. Chenevey , Eui W. Choe , M. Ishaq Haider , Subhash Makhija
IPC分类号： C08G63/06 , C08G63/19 , C08G63/60 , C08G69/44 , C08G63/00 , C08G63/02
CPC分类号： C08G63/19 , C08G63/065 , C08G63/605 , C08G69/44
摘要： A method of making controlled sequence condensation copolymers from mer systems capable of forming at least two unique recurring units is disclosed and claimed. Sequenced polyesters containing the residue of hydroxyacids are specifically exemplified.
摘要翻译：公开并要求保护能够形成至少两个独特重复单元的聚合体系的受控序列缩合共聚物的方法。具体列举了含有羟基酸残基的测序聚酯。

9. 发明授权

US5250633A Fibers and fibrets from blends of polybezimidazoles and aromatic polyamides, aromatic polyamide-hydrazides or aromatic polyamides containing heterocyclic linkages 失效
标题翻译：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
申请人： Gordon W. Calundann , Edward C. Chenevey , Tai-Shung Chung
发明人： Gordon W. Calundann , Edward C. Chenevey , Tai-Shung Chung
IPC分类号： C08L77/00 , C08L79/02 , C08L79/04 , D01D5/40 , D01F6/90 , C08L79/06 , C08L79/08
CPC分类号： D01F6/905 , C08L77/00 , C08L79/02 , C08L79/04 , D01D5/40
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。

10. 发明授权

US4606875A Process for preparing shaped articles of rigid rod heterocyclic liquid crystalline polymers 失效
标题翻译：用于制备刚性棒状杂环液晶聚合物的成型制品的方法
公开(公告)号：US4606875A
公开(公告)日：1986-08-19
申请号：US483798
申请日：1983-04-11
申请人： Edward C. Chenevey , Thaddeus E. Helminiak
发明人： Edward C. Chenevey , Thaddeus E. Helminiak
IPC分类号： D01D5/06 , D01F6/74
CPC分类号： D01F6/74 , D01D5/06
摘要： Shaped articles are prepared from rigid rod heterocyclic liquid crystalline polymers. The articles are prepared by polymerizing the polymer in a reaction medium whereby a solution of the polymer is formed and by forming the articles directly from the polymer solution.
摘要翻译：成型制品由刚性棒状杂环液晶聚合物制备。通过在反应介质中聚合聚合物制备制品，由此形成聚合物的溶液并通过直接从聚合物溶液形成制品。

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