公开(公告)号：US07964698B2

公开(公告)日：2011-06-21

申请号：US11935036

申请日：2007-11-05

申请人： Erik S. Weiser ,  Theodorus J. Dingemans ,  Terry L. St. Clair ,  Jeffrey A. Hinkley

发明人： Erik S. Weiser ,  Theodorus J. Dingemans ,  Terry L. St. Clair ,  Jeffrey A. Hinkley

IPC分类号： C08G73/10

CPC分类号： C08G73/1071 ,  C08J5/24 ,  C08J2379/08 ,  C08L79/08 ,  C09K19/3814 ,  C09K19/3823

摘要： The benefits of liquid crystal polymers and polyetherimides are combined in an all-aromatic thermoplastic liquid crystalline polyetherimide. Because of the unique molecular structure, all-aromatic thermotropic liquid crystal polymers exhibit outstanding processing properties, excellent barrier properties, low solubilities and low coefficients of thermal expansion in the processing direction. These characteristics are combined with the strength, thermal, and radiation stability of polyetherimides.

摘要翻译： 液晶聚合物和聚醚酰亚胺的优点在全芳族热塑性液晶聚醚酰亚胺中组合。 由于独特的分子结构，全芳族热致液晶聚合物具有出色的加工性能，优异的阻隔性能，低溶解度和低加工方向的热膨胀系数。 这些特性与聚醚酰亚胺的强度，热和辐射稳定性相结合。

公开(公告)号：US20090118461A1

公开(公告)日：2009-05-07

申请号：US11935036

申请日：2007-11-05

申请人： Erik S. Weiser ,  Theodorus J. Dingemans ,  Terry L. St. Clair ,  Jeffrey A. Hinkley

发明人： Erik S. Weiser ,  Theodorus J. Dingemans ,  Terry L. St. Clair ,  Jeffrey A. Hinkley

IPC分类号： C08G73/10

CPC分类号： C08G73/1071 ,  C08J5/24 ,  C08J2379/08 ,  C08L79/08 ,  C09K19/3814 ,  C09K19/3823

摘要： The benefits of liquid crystal polymers and polyetherimides are combined in an all-aromatic thermoplastic liquid crystalline polyetherimide. Because of the unique molecular structure, all-aromatic thermotropic liquid crystal polymers exhibit outstanding processing properties, excellent barrier properties, low solubilities and low coefficients of thermal expansion in the processing direction. These characteristics are combined with the strength, thermal, and radiation stability of polyetherimides.

摘要翻译： 液晶聚合物和聚醚酰亚胺的优点在全芳族热塑性液晶聚醚酰亚胺中组合。 由于独特的分子结构，全芳族热致液晶聚合物具有出色的加工性能，优异的阻隔性能，低溶解度和低加工方向的热膨胀系数。 这些特性与聚醚酰亚胺的强度，热和辐射稳定性相结合。

公开(公告)号：US07507784B2

公开(公告)日：2009-03-24

申请号：US11124508

申请日：2005-04-29

申请人： Theodorus J. Dingemans ,  Erik S. Weiser ,  Terry L. St. Clair

发明人： Theodorus J. Dingemans ,  Erik S. Weiser ,  Terry L. St. Clair

IPC分类号： C08G73/00 ,  C08G65/40 ,  C09K19/06 ,  C09K19/12

CPC分类号： C09K19/3823 ,  C08G63/60 ,  C08G63/6854 ,  C08G69/44 ,  C08G73/16 ,  C09K19/3804

摘要： Main chain thermotropic liquid crystal esters, ester-imides, and ester-amides were prepared from AA, BB, and AB type monomeric materials and end-capped with phenylacetylene, phenylmaleimide, or nadimide reactive end-groups. The end-capped liquid crystal oligomers are thermotropic and have, preferably, molecular weights in the range of approximately 1000-15,000 grams per mole. The end-capped liquid crystal oligomers have broad liquid crystalline melting ranges and exhibit high melt stability and very low melt viscosities at accessible temperatures. The end-capped liquid crystal oligomers are stable for up to an hour in the melt phase. They are highly processable by a variety of melt process shape forming and blending techniques. Once processed and shaped, the end-capped liquid crystal oligomers were heated to further polymerize and form liquid crystalline thermosets (LCT). The fully cured products are rubbers above their glass transition temperatures.

摘要翻译： 主链热致液晶酯，酯 - 酰亚胺和酯 - 酰胺由AA，BB和AB型单体材料制备，并用苯乙炔，苯基马来酰亚胺或纳二酰胺反应性端基封端。 封端的液晶低聚物是热致变性的，并且优选分子量在约1000-15,000克/摩尔的范围内。 封端的液晶低聚物具有宽的液晶熔融范围，并且在可接近的温度下表现出高的熔体稳定性和非常低的熔体粘度。 封端的液晶低聚物在熔融相中稳定长达一个小时。 它们通过各种熔体加工形状和混合技术可高度加工。 一旦加工和成形，加热封端的液晶低聚物进一步聚合并形成液晶热固性塑料（LCT）。 完全固化的产品是高于其玻璃化转变温度的橡胶。

公开(公告)号：US6133330A

公开(公告)日：2000-10-17

申请号：US337475

申请日：1999-05-21

申请人： Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

发明人： Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

IPC分类号： C08G73/10 ,  C08J9/02 ,  C08J9/00 ,  C08J9/30

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。

公开(公告)号：US6084000A

公开(公告)日：2000-07-04

申请号：US394534

申请日：1999-09-10

申请人： Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

发明人： Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

IPC分类号： B01J13/04 ,  C08J9/02 ,  C08J9/32 ,  C08J9/36

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。

公开(公告)号：US06235803B1

公开(公告)日：2001-05-22

申请号：US09408652

申请日：1999-09-09

申请人： Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

发明人： Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

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。

公开(公告)号：US06222007B1

公开(公告)日：2001-04-24

申请号：US09093826

申请日：1998-05-29

申请人： Roberto J. Cano ,  Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

发明人： Roberto J. Cano ,  Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

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。

公开(公告)号：US06180746B2

公开(公告)日：2001-01-30

申请号：US09316428

申请日：1999-05-21

申请人： Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

发明人： Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

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。

公开(公告)号：US06939940B2

公开(公告)日：2005-09-06

申请号：US09757398

申请日：2001-01-05

申请人： Theodorous J. Dingemans ,  Erik S. Weiser ,  Terry L. St. Clair

发明人： Theodorous J. Dingemans ,  Erik S. Weiser ,  Terry L. St. Clair

IPC分类号： C08L101/12 ,  C08G63/60 ,  C08G63/685 ,  C08G69/44 ,  C08G73/16 ,  C09K19/38 ,  C08G73/06 ,  C09K19/06

CPC分类号： C09K19/3823 ,  C08G63/60 ,  C08G63/6854 ,  C08G69/44 ,  C08G73/16 ,  C09K19/3804

摘要： Main chain thermotropic liquid crystal esters, ester-imides, and ester-amides were prepared from AA, BB, and AB type monomeric materials and were end-capped with phenylacetylene, phenylmaleimide, or nadimide reactive end-groups. The resulting reactive end-capped liquid crystal oligomers exhibit a variety of improved and preferred physical properties. The end-capped liquid crystal oligomers are thermotropic and have, preferably, molecular weights in the range of approximately 1000-15,000 grams per mole. The end-capped liquid crystal oligomers have broad liquid crystalline melting ranges and exhibit high melt stability and very low melt viscosities at accessible temperatures. The end-capped liquid crystal oligomers are stable for up to an hour in the melt phase. These properties make the end-capped liquid crystal oligomers highly processable by a variety of melt process shape forming and blending techniques including film extrusion, fiber spinning, reactive injection molding (RIM), resin transfer molding (RTM), resin film injection (RFI), powder molding, pultrusion, injection molding, blow molding, plasma spraying and thermo-forming. Once processed and shaped, the end-capped liquid crystal oligomers were heated to further polymerize and form liquid crystalline thermosets (LCT). The fully cured products are rubbers above their glass transition temperatures. The resulting thermosets display many properties that are superior to their non-end-capped high molecular weight analogs.

摘要翻译： 主链热致液晶酯，酯 - 酰亚胺和酯 - 酰胺由AA，BB和AB型单体材料制成，并用苯乙炔，苯基马来酰亚胺或纳二酰胺反应性端基封端。 所得到的反应性封端的液晶低聚物表现出各种改进和优选的物理性质。 封端的液晶低聚物是热致变性的，并且优选分子量在约1000-15,000克/摩尔的范围内。 封端的液晶低聚物具有宽的液晶熔融范围，并且在可接近的温度下表现出高的熔体稳定性和非常低的熔体粘度。 封端的液晶低聚物在熔融相中稳定长达一个小时。 这些特性使得封端液晶低聚物可以通过各种熔融加工成型和共混技术加工，包括薄膜挤出，纤维纺丝，反应注射成型（RIM），树脂传递模塑（RTM），树脂薄膜注射（RFI） 粉末成型，拉挤成型，注射成型，吹塑成型，等离子喷涂和热成型。 一旦加工和成形，加热封端的液晶低聚物进一步聚合并形成液晶热固性塑料（LCT）。 完全固化的产品是高于其玻璃化转变温度的橡胶。 所得到的热固性材料显示出优于其非末端封端的高分子量类似物的许多性质。

公开(公告)号：US5994418A

公开(公告)日：1999-11-30

申请号：US316865

申请日：1999-05-21

申请人： Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

发明人： Erik S. Weiser ,  Terry L. St. Clair ,  Yoshiaki Echigo ,  Hisayasu Kaneshiro

IPC分类号： B01J13/04 ,  C08J9/02 ,  C08J9/32 ,  B01J13/02

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。