公开(公告)号：US5670256A

公开(公告)日：1997-09-23

申请号：US689760

申请日：1996-08-13

申请人： Terry L. St. Clair ,  Catharine C. Fay ,  Dennis C. Working

发明人： Terry L. St. Clair ,  Catharine C. Fay ,  Dennis C. Working

IPC分类号： C08G73/10 ,  D01F6/74 ,  D02G3/00

CPC分类号： C08G73/1014 ,  C08G73/1028 ,  D01F6/74 ,  Y10T428/2913 ,  Y10T428/2969

摘要： A polyimide fiber having textile physical property characteristics and the process of melt extruding same from a polyimide powder. Polyimide powder formed as the reaction product of the monomers 3,4'-ODA and ODPA, and endcapped with phthalic anhydride to control the molecular weight thereof, is melt extruded in the temperature range of 340.degree. C. to 360.degree. C. and at heights of 100.5 inches, 209 inches and 364.5 inches. The fibers obtained have a diameter in the range of 0.0068 inch to 0.0147 inch; a mean tensile strength in the range of 15.6 to 23.1 ksi; a mean modulus of 406 to 465 ksi; and a mean elongation in the range of 14 to 103%.

摘要翻译： 具有纺织物理特性的聚酰亚胺纤维及其从聚酰亚胺粉末熔融挤出的方法。 作为单体3,4'-ODA和ODPA的反应产物形成并与邻苯二甲酸酐封端以控制其分子量的聚酰亚胺粉末在340℃至360℃的温度范围内熔融挤出， 高度为100.5英寸，209英寸和364.5英寸。 所获得的纤维的直径范围为0.0068英寸至0.0147英寸; 平均拉伸强度在15.6至23.1ksi的范围内; 平均模数为406〜465ksi; 平均伸长率在14〜103％的范围内。

公开(公告)号：US5464928A

公开(公告)日：1995-11-07

申请号：US299385

申请日：1994-09-01

申请人： Alice C. Chang ,  Terry L. St. Clair

发明人： Alice C. Chang ,  Terry L. St. Clair

IPC分类号： C08G73/10 ,  C08G69/26

CPC分类号： C08G73/1085

摘要： The invention is a direct process for preparing semi-crystalline polyimides. This process comprises the steps of: providing a polar aprotic solvent, adding a dianhydride and a diamine to the solvent to form a mixture, stirring the mixture at ambient temperature, and adding glacial acetic acid to the mixture to provide a ratio of polar aprotic solvent to glacial acetic acid which ranges from about 90 to 10 to about 75 to 25 by volume to form a solution. The solution was heated to a range from about 110.degree. C. to about 140.degree. C. to form a polyimide precipitate. The polyimide precipitate was recovered as a semi-crystalline polyimide powder.

摘要翻译： 本发明是制备半结晶聚酰亚胺的直接方法。 该方法包括以下步骤：提供极性非质子溶剂，向溶剂中加入二酐和二胺以形成混合物，在环境温度下搅拌混合物，并向混合物中加入冰醋酸以提供极性非质子溶剂的比例 至冰乙酸，其体积为约90至10至约75至25体积以形成溶液。 将溶液加热至约110℃至约140℃的范围以形成聚酰亚胺沉淀。 回收聚酰亚胺沉淀物作为半结晶聚酰亚胺粉末。

公开(公告)号：US5302692A

公开(公告)日：1994-04-12

申请号：US77132

申请日：1993-05-27

申请人： Anna K. St. Clair ,  Terry L. St. Clair

发明人： Anna K. St. Clair ,  Terry L. St. Clair

IPC分类号： B01D71/46 ,  B01D71/56 ,  B01D71/64 ,  C07C381/00 ,  C08G59/50 ,  C08G73/10 ,  H01B3/30 ,  H01B3/40 ,  C08G69/26

CPC分类号： B01D71/46 ,  B01D71/56 ,  B01D71/64 ,  C07C381/00 ,  C08G59/5033 ,  C08G59/504 ,  C08G73/10 ,  C08G73/1064 ,  C08G73/1067 ,  C08G73/1071 ,  H01B3/306 ,  H01B3/40 ,  Y10T428/31721

摘要： The diamine, 1,3-diamino-5-pentafluorosulfanylbenzene (DASP), was reacted with various dianhydrides to form polyimides containing an SF.sub.5 moiety. These polyimides exhibit high glass transition temperatures, high density, low solubility, and low dielectric properties. These polymers were used to prepare semi-permeable membranes, wire coatings, and films and are useful for electronic, space and piezoelectric applications.

摘要翻译： 二胺1,3-二氨基-5-五氟硫烷基苯（DASP）与各种二酐反应形成含有SF5部分的聚酰亚胺。 这些聚酰亚胺显示出高玻璃化转变温度，高密度，低溶解度和低介电性能。 这些聚合物用于制备半透膜，线涂层和膜，并且可用于电子，空间和压电应用。

公开(公告)号：US5220070A

公开(公告)日：1993-06-15

申请号：US755207

申请日：1991-09-05

申请人： Terry L. St. Clair ,  Anne K. St. Clair ,  Joseph S. Thrasher

发明人： Terry L. St. Clair ,  Anne K. St. Clair ,  Joseph S. Thrasher

IPC分类号： B01D71/46 ,  B01D71/56 ,  B01D71/64 ,  C07C381/00 ,  C08G59/50 ,  C08G73/10 ,  H01B3/30 ,  H01B3/40

CPC分类号： B01D71/46 ,  B01D71/56 ,  B01D71/64 ,  C07C381/00 ,  C08G59/5033 ,  C08G59/504 ,  C08G73/10 ,  C08G73/1064 ,  C08G73/1067 ,  C08G73/1071 ,  H01B3/306 ,  H01B3/40 ,  Y10T428/31721

摘要： A process was developed to prepare 1,3-diamino-5-pentafluorosulfanylbenzene. This process involved two steps: preparing the dinitro compound, 1,3-dinitro-5-pentafluorosulfanylbenzene, and reducing this compound to form the corresponding diamine. This diamine was reacted with various dianhydrides, diacidchlorides, and epoxy resins to form polyimides, polyamides, and crosslinked epoxies. These polymers were used to prepare semi-permeable membranes, wire coatings, and films.

摘要翻译： 开发了制备1,3-二氨基-5-五氟硫烷基苯的方法。 该方法包括两步：制备二硝基化合物，1,3-二硝基-5-五氟硫烷基苯，还原该化合物以形成相应的二胺。 该二胺与各种二酐，二酰氯和环氧树脂反应形成聚酰亚胺，聚酰胺和交联环氧树脂。 这些聚合物用于制备半透膜，电线涂层和膜。

公开(公告)号：US5061783A

公开(公告)日：1991-10-29

申请号：US516489

申请日：1990-04-30

申请人： Terry L. St. Clair

发明人： Terry L. St. Clair

IPC分类号： C08G73/10

CPC分类号： C08G73/1067 ,  C08G73/1007 ,  C08G73/1032

摘要： The process of the present invention includes first treating a polyamide-acid (such as LARC-TPI polyamide-acid) in an amide-containing solvent (such as N-methylpyrrolidone) with an aprotic organic base (such as triethylamine), followed by dehydrating with an organic dehydrating agent (such as acetic anhydride). The level of crystallinity in the linear aromatic polyimide so produced is maximized without any degradation in the molecular weight thereof.

摘要翻译： 本发明的方法包括首先用非质子有机碱（如三乙胺）在含酰胺的溶剂（如N-甲基吡咯烷酮）中处理聚酰胺酸（如LARC-TPI聚酰胺酸），然后脱水 与有机脱水剂（如乙酸酐）混合。 如此制造的线性芳族聚酰亚胺中的结晶度水平最大化，其分子量没有任何降低。

公开(公告)号：US4603061A

公开(公告)日：1986-07-29

申请号：US643589

申请日：1984-08-23

申请人： Anne K. St. Clair ,  Terry L. St. Clair

发明人： Anne K. St. Clair ,  Terry L. St. Clair

IPC分类号： C08J5/18 ,  B05D5/06 ,  B32B27/00

CPC分类号： C08J5/18 ,  C08J2379/08 ,  Y10T428/265 ,  Y10T428/31721

摘要： An aromatic condensation polyimide film that is approximately 90% transparent at 500 nm, useful for thermal protective coatings and the like and the process for preparing same are disclosed. An essential feature of the invention for achieving maximum optical transparency films requires utilizing recrystallized and/or sublimated specific aromatic diamines and dianhydride monomers and introducing bulky electron-withdrawing groups and separator groups into the polymer molecular structure. The incorporation of bulky electron-withdrawing groups in the diamine portion of the polymer structure serves to reduce the formation of inter-chain and intra-chain charge transfer complexes which normally cause large absorptions in the UV-visible range. Incorporation of separator atoms into either the diamine or dianhydride monomers serves to reduce the amount of conjugation and inter-and intra-chain electronic interactions and thereby lessen charge transfer complex formation.

摘要翻译： 公开了一种在500nm下约为90％透明度的用于热保护涂层等的芳族缩合聚酰亚胺膜及其制备方法。 实现最大光学透明膜的本发明的一个基本特征需要使用重结晶和/或升华的特定芳族二胺和二酐单体，并将大体积的吸电子基团和隔离剂基团引入到聚合物分子结构中。 在聚合物结构的二胺部分中引入大体积的吸电子基团用于减少通常在UV-可见光范围内引起大吸收的链间和链内电荷转移络合物的形成。 将分离器原子并入二胺或二酐单体中用于减少共轭量和链内和链内电子相互作用的量，从而减少电荷转移络合物的形成。

公开(公告)号：US4552931A

公开(公告)日：1985-11-12

申请号：US649328

申请日：1984-09-11

申请人： Terry L. St. Clair ,  Harold D. Burks

发明人： Terry L. St. Clair ,  Harold D. Burks

IPC分类号： C08G73/10

CPC分类号： C08G73/1064 ,  C08G73/1014 ,  C08G73/1017 ,  C08G73/1071

摘要： A process of endcapping a polyimide system with an endcapping agent in order to achieve a controlled decrease in molecular weight and melt viscosity along with predictable fracture resistance of the molded products is disclosed. The uncapped system is formed by combining an equimolar ratio of 4,4'-bis(3,4-dicarboxyphenoxy) diphenylsulfide dianhydride (BDSDA) and 1,3-bis(aminophenoxy)benzene (APB) dissolved in bis(2-methoxyethyl)ether. The endcapped system is formed by dissolving APB in bis-(2-methoxyethyl)ether, adding the endcapping agent, and then adding the BDSDA. By varying the amount of endcapping from 0 to 4%, molecular weight is decreased from 13,900 to 8660. At a processing temperature of 250.degree. C., there is a linear relationship between molecular weight and viscosity, with the viscosity decreasing by two orders of magnitude as the molecular weight decreased from 13,900 to 8660. A greater drop in viscosity is noted at higher temperatures. Apparent viscosity as a function of molecular weight at 250.degree. C. and at 280.degree. C. is depicted in FIG. 2. Reducing the molecular weight also results in a linear decrease in the fracture resistance from 4100 J/m.sup.2 to 296 J/m.sup.2, as shown in FIG. 1.

摘要翻译： 公开了一种使用封端剂封端聚酰亚胺系统以便实现分子量和熔体粘度的受控降低以及模制产品的可预测的耐断裂性的方法。 未封端的体系是通过将等摩尔比的4,4'-双（3,4-二羧基苯氧基）二苯硫醚二酐（BDSDA）和1,3-双（氨基苯氧基）苯（APB））溶于双（2-甲氧基乙基） 醚。 通过将APB溶解在双（2-甲氧基乙基）醚中，加入封端剂，然后加入BDSDA形成封端体系。 通过将封端量从0降低到4％，分子量从13,900降低到8660.在250℃的加工温度下，分子量和粘度之间存在线性关系，粘度降低了两个数量级 随着分子量从13,900降低到8660.在较高的温度下，粘度的下降更大。 在250℃和280℃下作为分子量的函数的表观粘度如图1所示。 降低分子量也导致断裂阻力从4100J / m 2到296J / m 2的线性降低，如图2所示。 1。

公开(公告)号：US4489027A

公开(公告)日：1984-12-18

申请号：US492282

申请日：1983-05-06

申请人： Terry L. St. Clair ,  David A. Yamaki

发明人： Terry L. St. Clair ,  David A. Yamaki

IPC分类号： C08G73/10 ,  B29G5/00 ,  B32B31/20

CPC分类号： C08G73/1064 ,  Y10S264/65

摘要： A process for preparing a thermoplastic poly(imidesulfone) is disclosed. This resulting material has thermoplastic properties which are generally associated with polysulfones but not polyimides, and solvent resistant which is generally associated with polyimides but not polysulfones. This system is processable in the 250.degree.-350.degree. C. range for molding, adhesive and laminating applications. This unique thermoplastic poly(imidesulfone) is obtained by incorporating an aromatic sulfone moiety into the backbone of an aromatic linear polyimide by dissolving a quantity of a 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA) in a solution of 3,3'-diaminodiphenylsulfone and bis(2-methoxyethyl)ether, precipitating the reactant product in water, filtering and drying the recovered poly(amide-acid sulfone) and converting it to the poly(imidesulfone) by heating.

摘要翻译： 公开了制备热塑性聚（亚胺砜）的方法。 所得到的材料具有通常与聚砜而不是聚酰亚胺相关的热塑性，并且耐溶剂性通常与聚酰亚胺而不是聚砜缔合。 该系统在250°-350℃范围内可加工成型，粘合和层压应用。 通过将3,3'，4,4'-二苯甲酮四羧酸二酐（BTDA）溶解在3，4,4'-二苯甲酮四羧酸二酐（BTDA）的溶液中，将芳族砜部分并入芳香族线性聚酰亚胺的骨架中而获得这种独特的热塑性聚（亚胺砜） 3'-二氨基二苯基砜和双（2-甲氧基乙基）醚，将反应物产物沉淀在水中，过滤并干燥回收的聚（酰胺 - 酸砜）并通过加热将其转化成聚（亚胺砜）。

公开(公告)号：US4444979A

公开(公告)日：1984-04-24

申请号：US469866

申请日：1983-02-25

申请人： Terry L. St. Clair ,  Harold D. Burks

发明人： Terry L. St. Clair ,  Harold D. Burks

IPC分类号： C08G73/00 ,  C08G73/10

CPC分类号： C08G73/1064 ,  C08G73/1053 ,  C08G73/1071

摘要： Novel polyphenylene ethers with imide linking units are disclosed. These polymers incorporate the solvent and thermal resistance of polyimides and the processability of polyphenylene ethers. Improved physical properties over those of the prior art are obtained by incorporating meta linked ethers and/or polyphenylene oxides into the polymer backbone. A novel process for making polymers of this type is also disclosed. The process is unique in that the expected need of high process temperatures and/or special atmospheres are eliminated.

摘要翻译： 公开了具有酰亚胺连接单元的新型聚苯醚。 这些聚合物结合聚酰亚胺的溶剂和耐热性以及聚苯醚的加工性。 通过将间接连接的醚和/或聚苯醚掺入聚合物主链中，获得了比现有技术更好的物理性能。 还公开了一种制备这种类型的聚合物的新方法。 该方法是独特的，因为预期需要高的工艺温度和/或特殊的气氛被消除。

公开(公告)号：US4398021A

公开(公告)日：1983-08-09

申请号：US407240

申请日：1982-08-11

申请人： Terry L. St. Clair ,  David A. Yamaki

发明人： Terry L. St. Clair ,  David A. Yamaki

IPC分类号： C08G73/10

CPC分类号： C08G73/1064

摘要： A process for preparing a thermoplastic poly(imidesulfone) is disclosed. This resulting material has thermoplastic properties which are generally associated with polysulfones but not polyimides, and solvent resistance which is generally associated with polyimides but not polysulfones. This system is processable in the 250.degree.-350.degree. C. range for molding, adhesive and laminating applications. This unique thermoplastic poly(imidesulfone) is obtained by incorporating an aromatic sulfone moiety into the backbone of an aromatic linear polyimide by dissolving a quantity of a 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA) in a solution of 3,3'-diaminodiphenylsulfone and bis(2-methoxyethyl)ether, precipitating the reactant product in water, filtering and drying the recovered poly(amide-acid sulfone) and converting it to the poly(imidesulfone) by heating.

摘要翻译： 公开了制备热塑性聚（亚胺砜）的方法。 所得到的材料具有通常与聚砜而不是聚酰亚胺相关的热塑性，耐溶剂性通常与聚酰亚胺而不是聚砜相关。 该系统在250°-350℃范围内可加工成型，粘合和层压应用。 通过将3,3'，4,4'-二苯甲酮四羧酸二酐（BTDA）溶解在3，4,4'-二苯甲酮四羧酸二酐（BTDA）的溶液中，将芳族砜部分并入芳香族线性聚酰亚胺的骨架中而获得这种独特的热塑性聚（亚胺砜） 3'-二氨基二苯基砜和双（2-甲氧基乙基）醚，将反应物产物沉淀在水中，过滤并干燥回收的聚（酰胺 - 酸砜）并通过加热将其转化成聚（亚胺砜）。