公开(公告)号：US5478916A

公开(公告)日：1995-12-26

申请号：US299384

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 ,  C09J179/08 ,  C08G69/26

CPC分类号： C08G73/1042 ,  C08G73/101 ,  C08G73/1071 ,  C09J179/08 ,  Y10S526/935 ,  Y10T428/31504 ,  Y10T428/31721

摘要： A solvent resistant copolyimide was prepared by reacting 4,4'-oxydiphthalic anhydride with a diaimine blend comprising, based on the total amount of the diamine blend, about 75 to 90 mole percent of 3,4'-oxydianiline and about 10 to 25 mole percent p-phenylene diamine. The solvent resistant copolyimide had a higher glass transition temperature when cured at 350.degree. , 371.degree. and 400.degree. C. than LaRC.TM.-IA. The composite prepared from the copolyimide had similar mechanical properties to LaRC.TM.-IA. Films prepared from the copolyimide were resistant to immediate breakage when exposed to solvents such as dimethylacetamide and chloroform. The adhesive properties of the copolyimide were maintained even after testing at 23.degree., 150.degree., 177.degree. and 204.degree. C.

摘要翻译： 通过使4,4'-氧联二邻苯二甲酸酐与二亚胺混合物反应制备耐溶剂的共聚酰亚胺，该二亚胺共混物包含基于二胺共混物的总量的约75至90摩尔％的3,4'-氧二苯胺和约10至25摩尔 对苯二胺百分比。 耐溶剂的共聚酰亚胺在350℃，371℃和400℃下比LaRC TM -IA固化时具有较高的玻璃化转变温度。 由共聚酰亚胺制备的复合材料与LaRC TM -IA具有相似的机械性能。 从共聚酰亚胺制备的薄膜当暴露于溶剂如二甲基乙酰胺和氯仿时，可立即破裂。 甚至在23°，150°，177°和204°C下，保持共聚酰亚胺的粘合性能。

公开(公告)号：US5428102A

公开(公告)日：1995-06-27

申请号：US237712

申请日：1994-05-02

申请人： Anne K. St. Clair ,  Terry L. St. Clair ,  William P. Winfree

发明人： Anne K. St. Clair ,  Terry L. St. Clair ,  William P. Winfree

IPC分类号： C08G73/10 ,  C08L79/08

CPC分类号： C08G73/1007

摘要： A series of polyimides based on the dianhydride of 1,4-bis(3,4-dicarboxyphenoxy)benzene (HQDEA) or on 2,2-bis[4(3-aminophenoxy)phenyl]hexafluoropropane (3-BDAF) are evolved from high molecular weight polyamic acid solutions yielding flexible free-standing films and coatings in the fully imidized form which have a dielectric constant in the range of 2.5 to 3.1 at 10 GHz.

摘要翻译： 一系列基于1,4-双（3,4-二羧基苯氧基）苯（HQDEA）二酐或2,2-双[4-（3-氨基苯氧基）苯基]六氟丙烷（3-BDAF）的二酰亚胺衍生自 高分子量聚酰胺酸溶液产生柔性自立膜和完全酰亚胺化形式的涂层，其在10GHz下的介电常数范围为2.5至3.1。

公开(公告)号：US5304627A

公开(公告)日：1994-04-19

申请号：US970755

申请日：1992-11-02

申请人： John W. Connell ,  Terry L. St. Clair ,  Paul M. Hergenrother

发明人： John W. Connell ,  Terry L. St. Clair ,  Paul M. Hergenrother

IPC分类号： C08G73/10 ,  C09D179/08 ,  C08G69/26

CPC分类号： C09D179/08 ,  C08G73/10 ,  C08G73/1046

摘要： Novel polyimides containing pendent siloxane groups (PISOX) were prepared by the reaction of functionalized siloxane compounds with hydroxy containing polyimides (PIOH). The pendent siloxane groups on the polyimide backbone offer distinct advantages such as lowering the dielectric constant and moisture resistance and enhanced atomic oxygen resistance. The siloxane containing polyimides are potentially useful as protective silicon oxide coatings and are useful for a variety of applications where atomic oxygen resistance is needed.

摘要翻译： 通过官能化的硅氧烷化合物与含羟基的聚酰亚胺（PIOH）的反应制备了含有侧链硅氧烷基团（PISOX）的新型聚酰亚胺。 聚酰亚胺骨架上的侧链硅氧烷基团提供了明显的优点，例如降低介电常数和耐湿性以及增强的原子氧电阻。 含硅氧烷的聚酰亚胺可用作保护性氧化硅涂层，并且可用于需要原子氧电阻的各种应用。

公开(公告)号：US5212283A

公开(公告)日：1993-05-18

申请号：US845090

申请日：1992-03-03

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 ,  Y10T428/31721

摘要： Linear aromatic polyimides containing the cyclobutene-3,4-dione moiety were produced by reacting 1,2-bis(4-aminoanilino)cyclobutene-3,4-dione with several aromatic dianhydrides. The resulting polymers exhibited glass transition temperatures greater than 500.degree. C., adhered tenaciously to glass, and became more flexible after heating for 1 hour at 300.degree. C.

摘要翻译： 通过1,2-双（4-氨基苯胺基）环丁烯-3,4-二酮与若干芳族二酐反应制备含有环丁烯-3,4-二酮部分的线性芳族聚酰亚胺。 所得聚合物显示出大于500℃的玻璃化转变温度，坚韧地粘附到玻璃上，并且在300℃下加热1小时后变得更柔韧。

公开(公告)号：US5015851A

公开(公告)日：1991-05-14

申请号：US531372

申请日：1990-05-31

申请人： Jag J. Singh ,  Abe Eftekhari ,  Terry L. St. Clair

发明人： Jag J. Singh ,  Abe Eftekhari ,  Terry L. St. Clair

IPC分类号： G01Q30/02 ,  G21K5/02

CPC分类号： G21K5/02

摘要： A slow positron beam generator uses a conductive source residing between two test films. Moderator pieces are placed next to the test films on the opposite side of the conductive source. A voltage potential is applied between the moderator pieces and the conductive source. Incident energetic positrons are, first, emitted from the conductive source, second, passed through test film, and then, third, isotropically strike moderator pieces before diffusing out of the moderator pieces as slow positrons. The slow positrons diffusing out of moderator pieces are attracted to the conductive source which is held at an appropriate potential below the moderator pieces. The slow positrons have to pass through the test films before reaching the conductive source. A voltage is adjusted so that the potential difference between the moderator pieces and the conductive source forces the positrons to stop in the test films. Measurable annihilation radiation is emitted from the test film when positrons annihilate (combine) with electrons in the test film.

摘要翻译： 慢正电子束发生器使用驻留在两个测试膜之间的导电源。 主持人片放置在导电源相对侧的测试薄膜的旁边。 在调节器片和导电源之间施加电压电位。 事件能量正电子首先从导电源发射，第二次通过测试膜，然后第三，各向同性地使调节剂片段以扩散出慢速正电子体之前的调节剂片段。 扩散到调节剂片段的慢正电子被吸引到导电源上，导电源被保持在调节剂片下方的适当电位。 慢正电子必须在到达导电源之前通过测试膜。 调整电压，使得调节剂片和导电源之间的电位差迫使正电子在测试膜中停止。 当正电子在测试膜中湮灭（结合）电子时，可以从测试膜发射可测量的湮灭辐射。

公开(公告)号：US4624888A

公开(公告)日：1986-11-25

申请号：US781813

申请日：1985-09-30

申请人： Terry L. St. Clair ,  Shubha Maudgal

发明人： Terry L. St. Clair ,  Shubha Maudgal

IPC分类号： C08G73/10 ,  C08J5/24 ,  B32B7/00 ,  B32B9/04

CPC分类号： C08J5/24 ,  C08G73/106 ,  C08J2379/08 ,  Y10T428/31663 ,  Y10T442/2369 ,  Y10T442/3146

摘要： Siloxane-containing addition polyimides having improved physical property characteristics of flexibility, drape, tack and toughness and the process for preparing and utilizing same are disclosed.

摘要翻译： 公开了具有改善的柔软性，悬垂性，粘性和韧性的物理特性的含硅氧烷的加成聚酰亚胺及其制备和利用方法。

公开(公告)号：US4166170A

公开(公告)日：1979-08-28

申请号：US839963

申请日：1977-10-06

申请人： Terry L. St. Clair

发明人： Terry L. St. Clair

IPC分类号： C08G73/10

CPC分类号： C08G73/1028 ,  C08G73/1007 ,  C08G73/1082

摘要： A novel addition polyimide based on the use of liquid monomers wherein the essentially solventless prepreg produced therefrom retains good drape, tack and other mechanical properties.