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公开(公告)号：US6084000A
公开(公告)日：2000-07-04
申请号：US394534
申请日：1999-09-10
CPC分类号： C08J9/32 , B01J13/04 , C08J2379/08 , Y10S264/06
摘要： A shaped article composed of an aromatic polyimide has a hollow, essentially spherical structure and a particle size of about 100 to about 1500 .mu.m, a density of about 1 to about 6 pounds/ft.sup.3 and a volume change of 1 to about 20% by a pressure treatment of 30 psi for 10 minutes at room temperature. A syntactic foam, made of a multiplicity of the shaped articles which are bonded together by a matrix resin to form an integral composite structure, has a density of about 3 to about 30 pounds/ft.sup.3 and a compression strength of about 100 to about 1400 pounds/in.sup.2.
摘要翻译： 由芳族聚酰亚胺组成的成形制品具有中空的，基本上为球形的结构，并且具有约100至约1500μm的粒度，约1至约6磅/ ft 3的密度和1至约20％的体积变化，由 在室温下压力处理30psi 10分钟。 由多个成形制品制成的复合泡沫体，其通过基质树脂粘合在一起以形成整体复合结构，其密度为约3至约30磅/英3 3，压缩强度为约100至约1400磅 / in2。
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公开(公告)号：US5994418A
公开(公告)日：1999-11-30
申请号：US316865
申请日：1999-05-21
CPC分类号： C08J9/32 , B01J13/04 , C08J2379/08 , Y10S264/06
摘要： A shaped article composed of an aromatic polyimide has a hollow, essentially spherical structure and a particle size of about 100 to about 1500 .mu.m, a density of about 1 to about 6 pounds/ft.sup.3 and a volume change of 1 to about 20% by a pressure treatment of 30 psi for 10 minutes at room temperature. A syntactic foam, made of a multiplicity of the shaped articles which are bounded together by a matrix resin to form an integral composite structure, has a density of about 3 to about 30 pounds/ft.sup.3 and a compression strength of about 100 to about 1400 pounds/in.sup.2.
摘要翻译： 由芳族聚酰亚胺组成的成形制品具有中空的，基本上为球形的结构，并且具有约100至约1500μm的粒度，约1至约6磅/ ft 3的密度和1至约20％的体积变化，由 在室温下压力处理30psi 10分钟。 由多个成形制品制成的复合泡沫体，其通过基质树脂结合以形成整体复合结构，其密度为约3至约30磅/英3 3，压缩强度为约100至约1400磅 / in2。
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公开(公告)号：US6133330A
公开(公告)日：2000-10-17
申请号：US337475
申请日：1999-05-21
CPC分类号： C08J9/02 , C08G73/10 , C08J2379/08
摘要： A mechanically undensified aromatic polyimide foam is made from an aromatic polyimide precursor solid residuum and has the following combination of properties: a density according to ASTM D-3574A of about 0.5 pounds/ft.sup.3 to about 20 pounds/ft.sup.3 ; a compression strength according to ASTM D-3574C of about 1.5 psi to about 1500 psi; and a limiting oxygen index according to ASTM D-2863 of about 35% oxygen to about 75% oxygen at atmospheric pressure. The aromatic polyimide foam has no appreciable solid inorganic contaminants which are residues of inorganic blowing agents. The aromatic polyimide which constitutes the aromatic polyimide foam has a glass transition temperature (Tg) by differential scanning calorimetry of about 235.degree. C. to about 400.degree. C.; and a thermal stability of 0 to about 1% weight loss at 204.degree. C. as determined by thermogravimetric analysis (TGA).The aromatic polyimide foam has utility as foam insulation and as structural foam, for example, for aeronautical, aerospace and maritime applications.
摘要翻译： 机械不透明的芳族聚酰亚胺泡沫由芳族聚酰亚胺前体固体残渣制成，具有以下特性组合：根据ASTM D-3574A的密度为约0.5磅/ ft 3至约20磅/ ft 3; 根据ASTM D-3574C的约1.5psi至约1500psi的压缩强度; 和根据ASTM D-2863的约35％氧气至约75％氧气的极限氧气指数。 芳族聚酰亚胺泡沫没有明显的固体无机污染物，它们是无机发泡剂的残留物。 构成芳族聚酰亚胺泡沫的芳族聚酰亚胺的差示扫描量热法的玻璃化转变温度（Tg）为约235℃至约400℃。 并且通过热重分析（TGA）测定，在204℃下的热稳定性为0至约1％的重量损失。 芳族聚酰亚胺泡沫具有泡沫绝缘和结构泡沫的用途，例如用于航空航天和航海应用。
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公开(公告)号：US06235803B1
公开(公告)日：2001-05-22
申请号：US09408652
申请日：1999-09-09
IPC分类号： C08J932
CPC分类号： C08J9/32 , B01J13/04 , C08J2379/08 , Y10S264/06
摘要： A shaped article composed of an aromatic polyimide has a hollow, essentially spherical structure and a particle size of about 100 to about 1500 &mgr;m, a density of about 1 to about 6 pounds/ft3 and a volume change of 1 to about 20% by a pressure treatment of 30 psi for 10 minutes at room temperature. A syntactic foam, made of a multiplicity of the shaped articles which are bonded together by a matrix resin to form an integral composite structure, has a density of about 3 to about 30 pounds/ft3 and a compression strength of about 100 to about 1400 pounds/in2.
摘要翻译： 由芳族聚酰亚胺组成的成型制品具有中空的，基本上为球形的结构，并且具有约100至约1500μm的粒度，约1至约6磅/ ft 3的密度和1至约20％的体积变化， 在室温下压力处理30psi 10分钟。 由多个成形制品制成的复合泡沫体，其通过基质树脂粘合在一起以形成整体复合结构，其密度为约3至约30磅/英3 3，压缩强度为约100至约1400磅 / in2。
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5.发明授权Films, preimpregnated tapes and composites made from polyimide “Salt-like” Solutions 失效薄膜，预浸胶带和由聚酰亚胺“盐状”制成的复合材料公开(公告)号：US06222007B1
公开(公告)日：2001-04-24
申请号：US09093826
申请日：1998-05-29
IPC分类号： C08G7310
CPC分类号： C08J5/24 , C08G73/1007 , C08G73/1032 , C08G73/1042 , C08J2379/08 , Y10T428/2969 , Y10T428/31504 , Y10T428/31721
摘要： High quality films, preimpregnated tape (prepegs) and composites have been fabricated from polyimide precursor “salt-like” solutions. These “salt-like” solutions have a low viscosity (5,000 to 10,000 cp) and a high solids content (50-65% by weight) and can be coated onto reinforcing fiber to produce prepegs with excellent tack and drape at 12-15% residual solvent (˜4-6% water from thermal imidization reaction). The processing of these types of prepegs significantly overcomes solvent removal problems and allows excellent fiber wet out. In addition, the physical characteristics of the polyimide precursor “salt-like” solutions permits processing into high-performance materials through the use of standard prepregging and composite fabrication equipment. The resultant composites are of high quality.
摘要翻译： 高质量薄膜，预浸胶带（prepegs）和复合材料已经由聚酰亚胺前体“盐状”溶液制成。 这些“盐状”溶液具有低粘度（5,000至10,000cp）和高固体含量（50-65％重量），并且可以涂覆到增强纤维上以制备具有优异的粘性和悬垂性的预浸料，其具有12-15％ 残余溶剂（约为4-6％的水从热亚胺化反应）。 这些类型的预处理剂的加工显着地克服了溶剂去除问题，并且可以优异的纤维润湿。 此外，聚酰亚胺前体“盐状”溶液的物理特性允许通过使用标准预浸料和复合制造设备将其加工成高性能材料。 所得复合材料质量高。
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公开(公告)号：US06180746B2
公开(公告)日：2001-01-30
申请号：US09316428
申请日：1999-05-21
IPC分类号： C08G7310
CPC分类号： C08J9/02 , C08G73/10 , C08G73/1007 , C08J2379/08
摘要： A polyimide precursor solid residuum is an admixture of an aromatic dianhydride or derivative thereof and an aromatic diamine or dervative thereof plus a complexing agent, which is complexed with the admixture by hydrogen bonding. The polyimide precursor solid residuum is effectively employed in the preparation of polyimide foam and the fabrication of polyimide foam structures.
摘要翻译： 聚酰亚胺前体固体残渣是芳族二酐或其衍生物与芳族二胺或其衍生物加络合剂的混合物，络合剂通过氢键与混合物络合。 聚酰亚胺前体固体残渣有效地用于聚酰亚胺泡沫的制备和聚酰亚胺泡沫结构的制造。
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7.发明授权Polyimide precursor solution, coating film obtained therefrom, and process for producing polyimide coating film 失效聚酰亚胺前体溶液，由其得到的涂膜，以及聚酰亚胺涂膜的制造方法
公开(公告)号：US6133407A
公开(公告)日：2000-10-17
申请号：US102672
申请日：1998-06-23
IPC分类号： B05D7/24 , B29C41/12 , B29K77/00 , B29L7/00 , B32B27/34 , C08G73/10 , C08K5/06 , C08K5/17 , C08K5/20 , C08L79/08 , C09D179/08 , C08G69/26
CPC分类号： C08G73/1032
摘要： A polyimide precursor solution having a high concentration yet low viscosity, a polyimide coating film having satisfactory physical properties which is prepared from the polyimide precursor solution, and a process for producing a polyimide coating film using the polyimide precursor solution. The polyimide precursor solution has dissolved therein a specific salt of a diamine and a tetracarboxylic acid and/or a dicarboxylic acid-dialkyl ester in a high concentration, the diamine and the tetracarboxylic acid and/or the dicarboxylic acid-dialkyl ester being capable of forming a polyimide. Also disclosed is a polyimide coating film obtained by heating the solution to cause imidization and a process for producing the polyimide coating film.
摘要翻译： 具有高浓度但低粘度的聚酰亚胺前体溶液，由聚酰亚胺前体溶液制备的具有令人满意的物理性能的聚酰亚胺涂膜，以及使用该聚酰亚胺前体溶液制备聚酰亚胺涂膜的方法。 聚酰亚胺前体溶液在其中溶解高浓度的二胺和四羧酸和/或二羧酸 - 二烷基酯的特定盐，二胺和四羧酸和/或二羧酸 - 二烷基酯能够形成 聚酰亚胺。 还公开了通过加热溶液以产生酰亚胺化获得的聚酰亚胺涂膜和制备聚酰亚胺涂膜的方法。
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公开(公告)号：US08962790B2
公开(公告)日：2015-02-24
申请号：US11674620
申请日：2007-02-13
CPC分类号： C08J5/18 , B29C41/003 , B29C41/24 , B29C41/28 , B29C41/46 , B29D7/01 , B29K2079/08 , B29K2105/0005 , B29K2105/0014 , B29L2007/008 , C08J2379/08 , C09D179/08 , H05K2201/0154 , Y10T428/31721
摘要： A process includes the steps of: casting or coating a polyamic acid organic solvent solution on a support and drying the polyamic acid organic solvent solution thereon, so as to form a partially cured and/or partially dried polyamic acid film; dipping the polyamic acid film in tertiary amine or a solution of tertiary amine, or coating tertiary amine or a solution of tertiary amine on the polyamic acid film; and drying the film while imidizing the polyamic acid. In another process, a chemical converting agent and a catalyst are mixed in an organic solvent solution of polyamic acid. After casting and heating the mixture on a support, a partially cured and/or partially dried polyamic acid film is detached from the support. The film contains, with respect to the remaining volatile component, not less than 50 parts of catalyst, not more than 30 parts of solvent, and not more than 20 parts of chemical converting agent and/or a chemical converting agent derived component. The remaining amic acid is imidized and the film is dried.
摘要翻译： 一种方法包括以下步骤：将聚酰胺酸有机溶剂溶液浇铸或涂布在载体上并干燥其上的聚酰胺酸有机溶剂溶液，以形成部分固化和/或部分干燥的聚酰胺酸膜; 将聚酰胺酸膜浸渍在叔胺或叔胺溶液中，或在聚酰胺酸膜上涂覆叔胺或叔胺溶液; 并干燥该膜，同时酰亚胺化该聚酰胺酸。 在另一方法中，化学转化剂和催化剂在聚酰胺酸的有机溶剂溶液中混合。 将混合物浇铸并加热到载体上之后，将部分固化和/或部分干燥的聚酰胺酸膜与载体分离。 该膜相对于剩余的挥发性成分含有不少于50份催化剂，不超过30份溶剂，不超过20份化学转化剂和/或化学转化剂衍生组分。 将剩余的酰胺酰亚胺化并将膜干燥。
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公开(公告)号：US20110308725A1
公开(公告)日：2011-12-22
申请号：US13221358
申请日：2011-08-30
IPC分类号： C09J7/02
CPC分类号： H05K1/0346 , C09J7/25 , C09J2479/086 , H05K1/0393 , H05K3/386 , H05K2201/0154 , H05K2201/068 , Y10T428/2852 , Y10T428/31678
摘要： Disclosed is an adhesive film having high dimensional stability which can be suitably used for two layer FPCs. Specifically, disclosed is an adhesive sheet composed of an insulting layer and an adhesive layer arranged on one side or both sides of the insulating layer. This adhesive sheet is characterized in that the insulating layer has a ratio E′2/E′1 between the storage elasticity modulus E′1 at 25° C. and the storage elasticity modulus E′2 at 380° C. of not more than 0.2 and a coefficient of thermal expansion in the MD direction of 5-15 ppm at 100-200° C. It is further characterized in that the change in the coefficient of thermal expansion of the adhesive sheet at 100-250° C. after heat treatment at 380° C. for 30 second under tension of 20 kg/m is not more than 2.5 ppm in the tension direction and not more than 10 ppm in the direction perpendicular to the tension direction.
摘要翻译： 公开了一种具有高尺寸稳定性的粘合膜，其可以适用于两层FPC。 具体地，公开了由绝缘层和布置在绝缘层的一侧或两侧上的粘合层构成的粘合片。 该粘合片的特征在于绝缘层在25℃下的储能弹性模量E'1与380℃下的储能弹性模量E'2之间的比率E'2 / E'1不大于 0.2，在100〜200℃下MD方向的热膨胀系数为5〜15ppm。其特征还在于，热处理后的粘合片的热膨胀系数在100〜250℃的变化 在拉伸方向下在380℃，30秒的拉伸下处理30秒，在拉伸方向垂直的方向不大于10ppm。
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公开(公告)号：US20090011223A1
公开(公告)日：2009-01-08
申请号：US12087935
申请日：2007-01-04
IPC分类号： B32B27/20
CPC分类号： C08J5/18 , C08J2379/08 , H05K1/0346 , H05K1/0373 , H05K2201/0154 , H05K2201/0209 , H05K2203/0759 , Y10T428/254
摘要： Disclosed is a polyimide film which is free from coarse particles caused by aggregation of a filler, therefore, can avoid abnormal electrical discharge during a discharge treatment, repelling during application of an adhesive, and the like. Also disclosed is a method for production of the polyimide film. The method for production of the polyimide film is characterized by using an organic solvent solution containing an inorganic filling material and a first polyamic acid, wherein the organic solvent solution containing the first polyamic acid is prepared by a process comprising the steps of: 1) preparing a dispersion solution which contains the inorganic filling material and a second polyamic acid and has a viscosity of 50 to 500 poises; 2) filtering the dispersion solution; 3) mixing a prepolymer solution containing the first polyamic acid in the process of being polymerized and having a viscosity of 100 poises or lower with the filtered dispersion solution; and 4) increasing the viscosity of the mixed solution to a level ranging from 1000 to 6000 poises.
摘要翻译： 公开了一种聚酰亚胺膜，其不含由填料聚集引起的粗颗粒，因此可以避免在放电处理期间的异常放电，在施加粘合剂期间的排斥等。 还公开了一种聚酰亚胺薄膜的制造方法。 聚酰亚胺薄膜的制造方法的特征在于，使用含有无机填充材料和第一聚酰胺酸的有机溶剂溶液，其中含有第一聚酰胺酸的有机溶剂溶液是通过以下步骤制备的：1）制备 包含无机填充材料和第二聚酰胺酸并具有50至500泊的粘度的分散溶液; 2）过滤分散液; 3）在聚合过程中混合含有第一聚酰胺酸的预聚物溶液，并用过滤的分散液混合粘度为100泊或更低; 和4）将混合溶液的粘度提高至1000至6000泊。
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