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公开(公告)号：US5120825A
公开(公告)日：1992-06-09
申请号：US631557
申请日：1990-12-21
CPC分类号： C08G73/0672 , C08G73/18
摘要： The present invention provides for hybrid polybenzimidazole and polybenzimidazolone polymers which are characterized as containing both imidazole and imidazolone structural units in the polymer chain. These polymers are characterized as containing at least one recurring monomer unit containing the structure of the formula: ##STR1## wherein Ar is a tetravalent aromatic moiety derived from an aromatic tetraamine and Ar.sub.1 is a trivalent aromatic moiety derived from a trifunctional acid, an acid anhydride or amine-reactive derivatives thereof, said polymers further characterized by an inherent viscosity of at least about 0.01 dl/g measured as a 0.5% solution in N-methyl pyrrolidone at 25.degree. C.The polymers of this invention exhibit many of the advantageous properties of both polybenzimidazole and polybenzimidazolone polymers. They are characterized as being extremely resistant to chemical attack such as by solvents, acids and bases. Their high thermal stability and excellent electrical properties (low dielectric constant) render them useful in electrical and electronic applications.
摘要翻译： 本发明提供了混合聚苯并咪唑和聚苯并咪唑酮聚合物，其特征在于在聚合物链中含有咪唑和咪唑啉酮结构单元。 这些聚合物的特征在于含有至少一个含有下式结构的重复单体单元：其中Ar是衍生自芳族四胺的四价芳香部分，Ar 1是衍生自三官能酸的三价芳族部分，酸酐 或其胺反应性衍生物，所述聚合物的特征还在于其在25℃下作为N-甲基吡咯烷酮中的0.5％溶液测量的至少约0.01dl / g的特性粘度。本发明的聚合物显示出许多有利的性质 的聚苯并咪唑和聚苯并咪唑酮聚合物。 它们的特征是具有极强的耐化学腐蚀性，如溶剂，酸和碱。 它们的高热稳定性和优异的电性能（低介电常数）使其在电气和电子应用中非常有用。
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2.发明授权
公开(公告)号：US5025089A
公开(公告)日：1991-06-18
申请号：US434148
申请日：1989-11-13
IPC分类号： C08G73/10
CPC分类号： C08G73/1042
摘要： Copolyimides derived from the reaction product of 3,3'-6 F diamine or 4,4'-6 F diamine, at least one other diamine, and pyromellitic dianhydride can be rendered solvent soluble while at the same time exhibiting an improvement in both mechanical and electrical properties by the inclusion of at least one other dianhydride having a diaryl nucleus in the reaction media. Suitable such dianhydrides include bis (3,4 dicarboxy phenyl) ether dianhydride, 3,3'4,4' benzophenone tetracarboxylic dianhydride, 3,3',4,4' diphenyl tetracarboxylic acid dianhydride and 2,2 bis(3,4 dicarboxyphenyl) hexafluoropropane dianhydride (6F-DA). Such polyimides are soluble in common organic solvents such as methyl ethyl ketone or N-methyl pyrrolidone, and exhibit excellent film forming properties with improved mechanical and electrical properties as compared to the corresponding homopolyimides. They possess excellent heat stability (Tg's in excess of about 350.degree. C.) and have superior electrical properties, for example, dielectric constant of less than about 2.5 at 10 megahertz.
摘要翻译： 衍生自3,3'-6F二胺或4,4'-6F二胺，至少一种其它二胺和均苯四酸二酐的反应产物的共聚酰亚胺可以使溶剂溶解，同时显示机械 和通过在反应介质中包含具有二芳基核的至少一种其它二酐的电性能。 合适的这样的二酐包括双（3,4-二羧基苯基）醚二酐，3,3'4,4'二苯甲酮四羧酸二酐，3,3'，4,4'二苯基四羧酸二酐和2,2双（3,4-二羧基苯基 ）六氟丙烷二酐（6F-DA）。 这种聚酰亚胺可溶于普通有机溶剂如甲基乙基酮或N-甲基吡咯烷酮，并且与相应的均聚酰亚胺相比，其表现出优异的成膜性能，具有改进的机械和电学性能。 它们具有优异的热稳定性（Tg超过约350℃），并且具有优异的电性能，例如在10兆赫兹小于约2.5的介电常数。
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公开(公告)号：US5739193A
公开(公告)日：1998-04-14
申请号：US646403
申请日：1996-05-07
IPC分类号： H01B3/00 , C08K3/22 , C08L101/12 , H01B3/04 , H01B3/12 , H01B3/30 , H01B3/42 , H01B3/44 , H01P3/08 , H01Q1/38 , H05K1/03 , H05K1/16 , C08K3/10
CPC分类号： H05K1/0373 , C08K3/22 , H01B3/301 , H05K1/162 , H05K2201/0129 , H05K2201/0141 , H05K2201/0209
摘要： A polymeric composition having a high dielectric constant which varies little with temperature is made from a thermoplastic polymer, a high dielectric ceramic having a dielectric constant of at least about 50 at 1.0 Ghz and 20.degree. C., and a second ceramic material having a dielectric constant of at least about 5.0 at 1.0 GHz and 20.degree. C., where the high dielectric ceramic and the second ceramic material have temperature coefficients that are opposite in sign from one another.
摘要翻译： 具有高温度变化很小的高介电常数的聚合物组合物由热塑性聚合物，在1.0Ghz和20℃下具有至少约50的介电常数的高介电陶瓷和具有介电常数的第二陶瓷材料制成 常数在1.0GHz和20℃下至少约5.0，其中高介电陶瓷和第二陶瓷材料具有彼此相反的温度系数。
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4.发明授权Miscible blends of polybenzimidazoles and polyamide-imides having fluorine-containing linking groups and process for preparation of the blends 失效含有荧光素连接基团的聚苯并咪唑和聚酰亚胺的不均匀混合物及其制备方法
公开(公告)号：US5137985A
公开(公告)日：1992-08-11
申请号：US411351
申请日：1989-09-22
CPC分类号： C08J7/14 , C08L79/04 , C08L79/08 , C08J2379/04
摘要： A miscible blend comprising from about 5 to about 95 weight percent of a polybenzimidazole and from about 95 to about 5 weight percent of a polyamide-imide having fluorine-containing linking groups, total weight percent of the two polymers being 100. A process for preparing the blends comprises dissolving in a mutual solvent from about 5 to about 95 weight percent of the aromatic polybenzimidazole to about 95 to about 5 weight percent of the polyamide-imide having fluorine-containing linking groups, based on the total weight of those polymers and subsequently evaporating the solvent, thereby producing a dried blend of a polybenzimidazole and a polyamide-imide having fluorine-containing linking groups. The blends, particularly in the form of films, fibers or fibrets, may be post-treated with heat or sulfuric acid in order to minimize their shrinkage when subsequently subjected to heat and in order to increase their resistance to solvents and acid. The polyamide-imides having fluorine-containing linking groups are prepared by forming the polycondensation product of one or more aromatic diamines, one or more trifunctional acid anhydride monomers, and one or more tetrafunctional aromatic dianhydrides, at least one of said monomers containing the group ##STR1## linking two aromatic moieties, wherein R is CF.sub.3 or phenyl.
摘要翻译： 包含约5至约95重量％的聚苯并咪唑和约95至约5重量％的具有含氟连接基团的聚酰胺酰亚胺的混溶混合物，两种聚合物的总重量百分比为100.一种制备方法 共混物包括在相互溶剂中溶解约5至约95重量％的芳族聚苯并咪唑至约95至约5重量％的具有含氟连接基团的聚酰胺 - 酰亚胺，基于这些聚合物的总重量，随后 蒸发溶剂，从而产生具有含氟连接基团的聚苯并咪唑和聚酰胺 - 酰亚胺的干燥共混物。 可以将混合物，特别是薄膜，纤维或纤维素形式的混合物用热或硫酸进行后处理，以便随后经受热量使其收缩最小化，以增加它们对溶剂和酸的耐受性。 具有含氟连接基的聚酰胺 - 酰亚胺通过形成一种或多种芳族二胺，一种或多种三官能酸酐单体和一种或多种四官能芳族二酸酐的缩聚产物，至少一种含有 IMAGE>连接两个芳族部分，其中R是CF 3或苯基。
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公开(公告)号：US5120826A
公开(公告)日：1992-06-09
申请号：US631559
申请日：1990-12-21
IPC分类号： C08G73/14
CPC分类号： C08G73/14
摘要： The present invention provides for a novel heat stable class of polyamide-imide polymers having excellent flow properties and hydrolytic stability which are prepared by forming the polycondensation product of one or more aromatic or aliphatic diamines and a comonomer comprising a tri- or hexafluoro-substituted tricarboxylic acid anhydride (or acid derivative thereof) having the structure: ##STR1## wherein R is CF.sub.3 or a phenyl radical. In addition to improved flow properties, the polyamide-imide polymers of this invention also exhibit improved solubility properties in most organic solvents, good resistance to attack by chlorinated solvents such as trichloroethylene as compared with polyimides, improved hydrophobic properties as well as good thermal properties, including resistance to thermooxidative degradation.
摘要翻译： 本发明提供一种具有优异的流动性和水解稳定性的新型热稳定型聚酰胺 - 酰亚胺聚合物，其通过形成一种或多种芳族或脂族二胺的缩聚产物和包含三氟或六氟取代的三羧酸的共聚单体 具有以下结构的酸酐（或其酸衍生物）：其中R是CF 3或苯基。 除了改进的流动性能之外，本发明的聚酰胺酰亚胺聚合物在大多数有机溶剂中也表现出改善的溶解性能，与聚酰亚胺相比，耐三氯乙烯等氯化溶剂的抵抗性好，疏水性能好，热性能好， 包括耐热氧化降解。
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公开(公告)号：US5077383A
公开(公告)日：1991-12-31
申请号：US494009
申请日：1990-03-15
CPC分类号： C08G73/0672 , C08G73/0677 , C08G73/18
摘要： New polybenzimidazolone polymers produced from the reaction of an aromatic tetraamine with a hexafluoro dianhydride. These hexafluoro polybenzimidazolone polymers based on an aromatic hexafluoro dianhydrides show improved solubility, easy processability, low moisture uptake, high thermal stability, resistance to solvent and other improvements over conventional polybenzimidazolone polymers.
摘要翻译： 由芳族四胺与六氟二酐的反应生成的新的聚苯并咪唑酮聚合物。 基于芳族六氟二酸酐的这些六氟聚苯并咪唑酮聚合物显示改善的溶解性，易加工性，低吸湿性，高热稳定性，耐溶剂性和与常规聚苯并咪唑酮聚合物相比的其它改进。
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公开(公告)号：US4963628A
公开(公告)日：1990-10-16
申请号：US89650
申请日：1987-08-26
摘要： A novel miscible composition comprising from about 5 parts by weight to about 95 parts by weight of a polyarylate and from about 95 parts by weight to about 5 parts by weight of an aromatic polybenzimidazole. In a composition mostly comprised of an aromatic polybenzimidazole, it is preferred that the polyarylate be present in the composition in an amount sufficient to make the aromatic polybenzimidazole more thermally processable and also less susceptible to moisture. More preferably, such compositions are comprised of from about 60 parts by weight to about 95 parts by weight of an aromatic poloybenzimidazole and from about 40 parts by weight to about 5 parts by weight of a polyarylate. Most preferably, such compositions are comprised of at least about 10 parts by weight of a polyacrylate. In a composition mostly comprised of a polyarylate, it is preferred that the aromatic polybenzimidazole be present in an amount sufficient to render the polyarylate less sensitive to solvents, and to increase the thermal stability of the polyarylate. Preferably, the aromatic polybenzimidazole is present in such compositions in an amount sufficient to result in a composition with greatly enhanced solvent resistance. More preferably, such compositions are comprised of from about 60 parts by weight to about 95 parts by weight of a polyarylate and from about 40 parts by weight to about 5 parts by weight of an aromatic polybenzimidazole. Most preferably, such compositions should contain at least about 25 to about 30 parts by weight of a polybenzimidazole in order to render the polyarylate component much more resistant to solvents at room temperature. In addition to improving solvent resistance, greater amounts of aromatic polybenzimidazole in the composition substantially increase the thermal and physical properties of the composition, giving excellent price-performance characteristics. The compositions, particularly in the form of films or fibers, may be post-treated with heat or sulfuric acid in order to minimize their shrinkage when subsequently subjected to heat and in order to increase their resistance to solvents and acid.
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8.发明授权
公开(公告)号：US4962183A
公开(公告)日：1990-10-09
申请号：US348634
申请日：1989-05-08
CPC分类号： C08G73/105 , C08G73/14
摘要： The present invention provides novel heat stable polyamide-imide polymers having excellent flow properties and moisture stability which render them more readily processible into fibers, films, sheets and other molded articles. The polymers are prepared by forming the polycondensation product of one or more aromatic diamines, one or more tetrafunctional aromatic dianhydrides, and a difunctional aromatic carboxylic acid or amide-forming derivative thereof containing the groups ##STR1## linking two aromatic moieties, wherein R is CF.sub.3 or phenyl. In addition to improved flow properties, the polyamide-imide polymers of this invention also exhibit improved solubility properties in most organic solvents, improved resistance to attack by chlorinated solvents such as trichloroethylene as compared with polyimides, improved hydrophobic properties as well as excellent thermal properties, including resistance to thermooxidative degradation.
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9.发明授权Shaped articles from polyamide-imide polymers having fluorine containing linking groups 失效具有含氟连接基团的聚酰胺 - 酰亚胺聚合物的成形制品
公开(公告)号：US4954611A
公开(公告)日：1990-09-04
申请号：US316342
申请日：1989-02-27
CPC分类号： C08G73/14
摘要： The present invention provides for shaped articles made from novel heat stable polyamide-imide polymers having excellent flow properties which render them more readily processible into fibers, films, sheets and other molded articles. The polymers are prepared by forming the polycondensation product of one or more aromatic diamines, one or more trifunctional acid anhydride monomers, and one or more tetrafunctional aromatic dianhydrides, at least one of said monomers containing the groups ##STR1## linking two aromatic moieties, wherein R is CF.sub.3 or phenyl. In addition to improved flow properties, the polyamide-imide polymers of this invention also exhibit improved solubility properties in most organic solvents, improved resistance to attach by chlorinated solvents such as trichloroethylene as compared with polyimides, improved hydrophobic properties as well as excellent thermal properties including resistance to thermooxidative degradation.
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10.发明授权
公开(公告)号：US4954610A
公开(公告)日：1990-09-04
申请号：US316380
申请日：1989-02-27
CPC分类号： C08G73/14
摘要： The present invention provides novel heat stable polyamide-imide polymers having excellent flow properties which render them more readily processible into fibers, films, sheets and other molded articles. The polymers are prepared by forming the polycondensation product of one or more aromatic diamines and one or more trifunctional acid anhydride monomers, at least one of said diamine monomers containing the group ##STR1## linking two aromatic moieties, wherein R is CF.sub.3 or phenyl. In addition to improved flow properties, the polyamide-imide polymers of this invention also exhibit improved solubility properties in most organic solvents, improved resistance to attack by chlorinated solvents such as trichloroethylene as compared with polyimides, improved hydrophobic properties as well as excellent thermal properties including resistance to thermooxidative degradation.
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