Method for converting macrocyclic polyimide oligomers to linear
polyimides
    1.
    发明授权
    Method for converting macrocyclic polyimide oligomers to linear polyimides 失效
    将大环聚酰亚胺低聚物转化成线性聚酰亚胺的方法

    公开(公告)号:US5438114A

    公开(公告)日:1995-08-01

    申请号:US262101

    申请日:1994-06-17

    IPC分类号: C08G73/10

    CPC分类号: C08G73/1028 C08G73/1007

    摘要: Macrocyclic polyimide oligomers are converted to linear polyimides by heating with a primary amine in the presence of a tertiary amine, tertiary phosphine, quaternary ammonium salt, quaternary phosphonium salt or hexaalkylguanidinium salt or heterocyclic analog thereof as a macrocyclic polyimide polymerization catalyst.

    摘要翻译: 作为大环聚酰亚胺聚合催化剂,大环聚酰亚胺低聚物通过在叔胺,叔膦,季铵盐,季鏻盐或六烷基胍鎓盐或其杂环类似物的存在下与伯胺反应而转化为线性聚酰亚胺。

    Method for preparing copper-diamine complexes and diamines
    2.
    发明授权
    Method for preparing copper-diamine complexes and diamines 失效
    制备铜 - 二胺络合物和二胺的方法

    公开(公告)号:US4595773A

    公开(公告)日:1986-06-17

    申请号:US694571

    申请日:1985-01-24

    申请人: Dwain M. White

    发明人: Dwain M. White

    CPC分类号: C07F1/005 C07C209/08

    摘要: Copper-diamine complexes such as copper(II)-di-t-butylethylenediamine dibromide are prepared by the reaction of a dihalide such as 1,2-dibromoethane with an amine such as t-butylamine and a basic copper(II) compound such as cupric oxide in a nitrile solvent. The diamine can be liberated from the complex by reacting it with a complexing agent such as an ethylenediaminetetraacetic acid salt.

    摘要翻译: 铜 - 二胺配合物如铜(II) - 二叔丁基乙二胺二溴化物通过二卤化物如1,2-二溴乙烷与胺如叔丁胺和碱式铜(II)化合物如 腈溶液中的氧化铜。 二胺可以通过与络合剂如乙二胺四乙酸盐反应而从络合物中释放出来。

    Urethane-coupled block polymers of quinone-coupled polyphenylene oxides
    4.
    发明授权
    Urethane-coupled block polymers of quinone-coupled polyphenylene oxides 失效
    醌结合聚苯醚的聚氨酯共轭嵌段聚合物

    公开(公告)号:US4238581A

    公开(公告)日:1980-12-09

    申请号:US907590

    申请日:1978-05-19

    申请人: Dwain M. White

    发明人: Dwain M. White

    IPC分类号: C08G18/48 C08G65/48

    CPC分类号: C08G18/4879 C08G65/485

    摘要: Linear, branched and/or cross-linked urethane-coupled block polymers of quinone-coupled polyphenylene oxides are described. The polymers are prepared by contacting polyfunctional isocyanates with quinone-coupled polyphenylene oxides having an average hydroxyl group per molecule value greater than zero including 2.0 or less. The polymers either alone or in combination with other polymers can be formed into useful articles of manufacture by conventional molding, extruding, etc., processing techniques.

    摘要翻译: 描述了醌键合的聚苯醚的线性,支链和/或交联的氨基甲酸酯偶联的嵌段聚合物。 通过使多官能异氰酸酯与每分子值大于零的平均羟基的醌 - 偶联的聚苯醚接触,包括2.0或更低,来制备聚合物。 单独或与其它聚合物组合的聚合物可以通过常规的模塑,挤出等加工技术形成有用的制品。

    Acyl coupled polymers of quinone-coupled polyphenylene oxides
    5.
    发明授权
    Acyl coupled polymers of quinone-coupled polyphenylene oxides 失效
    醌偶合聚苯醚的酰基偶联聚合物

    公开(公告)号:US4156770A

    公开(公告)日:1979-05-29

    申请号:US800656

    申请日:1977-05-26

    申请人: Dwain M. White

    发明人: Dwain M. White

    CPC分类号: C08G65/485

    摘要: Linear, branched and/or cross-linked acyl coupled polymers of quinone-coupled polyphenylene oxides are described which comprise di- and/or tri-functional acyl radicals coupled with polyphenoxy radicals, said polyphenoxy radicals being derived from quinone-coupled polyphenylene oxides having an average hydroxyl group per molecule value greater than zero including 2.0 or less. The resulting polyphenylene oxides can be used to prepare various articles of manufacture.

    摘要翻译: 描述了醌 - 偶联的聚苯醚的线性,支链和/或交联的酰基偶联聚合物,其包含与多苯氧基结合的二 - 和/或三官能酰基,所述多苯氧基衍生自醌结合的聚苯醚, 平均羟基每分子值大于零,包括2.0或更小。 所得聚苯醚可用于制备各种制品。

    Phosphorus containing block polymers of polyphenylene oxide
    6.
    发明授权
    Phosphorus containing block polymers of polyphenylene oxide 失效
    含磷聚苯醚的聚合物

    公开(公告)号:US4156699A

    公开(公告)日:1979-05-29

    申请号:US800641

    申请日:1977-05-26

    申请人: Dwain M. White

    发明人: Dwain M. White

    CPC分类号: C08G79/04 C08G65/485

    摘要: Phosphorus containing linear, branched and/or crosslinked block polymers of polyphenylene oxides are described which comprise di- and/or tri-functional phosphoryl radicals coupled with mono- and/or polyphenoxy radicals, said polyphenoxy radicals being derived from (a) polyphenylene oxides having an average hydroxyl group per molecule value greater than zero including 1.0 or less, or (b) polyphenylene oxide-quinone coupled polymers having an average hydroxyl group per molecule value greater than zero including 2.0 or less, and mixtures thereof. The resulting polyphenylene oxides can be used to prepare flame-retardant polyphenylene oxide articles of manufacture.

    摘要翻译: 描述了含有聚苯醚的线性,支链和/或交联嵌段聚合物的磷,其包含与单 - 和/或多苯氧基结合的二 - 和/或三官能磷酰基,所述多苯氧基衍生自(a)聚苯醚具有 每分子值大于零的平均羟基包括1.0或更小,或(b)每分子值大于零的平均羟基包括2.0或更小的聚苯醚 - 醌偶联聚合物及其混合物。 所得聚苯醚可用于制备阻燃聚苯醚制品。

    Aromatized polyacetylenes
    8.
    发明授权
    Aromatized polyacetylenes 失效
    芳族聚酰胺

    公开(公告)号:US4011378A

    公开(公告)日:1977-03-08

    申请号:US267389

    申请日:1972-06-29

    申请人: Dwain M. White

    发明人: Dwain M. White

    CPC分类号: C08L49/00 C08F8/00

    摘要: Polyacetylenes, either homopolymers or copolymers, are rendered more soluble and/or more thermally stable without destroying their film-forming properties and with minimal decrease in their high carbon content by reacting them with one or more 2,3,4,5-tetrasubstituted cyclopentadiones commonly called tetracyclones. These latter compounds, together with the acetylenic groups of the polymer, undergo a cyclization reaction to produce a 3,4,5,6-tetrasubstituted 1,2-phenylene moiety in the polymer backbone. Because of their high thermal stability these polymers are especially useful as binders for graphite fibers in making graphite composites or to produce films or coatings for high temperature applications.

    Process for producing high 1,2-enriched polybutadiene latices
    9.
    发明授权
    Process for producing high 1,2-enriched polybutadiene latices 失效
    高1,2- 1,2-聚丁二烯胶乳生产方法

    公开(公告)号:US5498672A

    公开(公告)日:1996-03-12

    申请号:US352271

    申请日:1994-12-07

    CPC分类号: C08F279/02

    摘要: Novel polymer compositions that comprise high 1,2-enrichment are described herein. Said polymer compositions have up to about 50% by weight of 1,2 units wherein about 25% to about 75% by weight of all 1,2 units are present in the polymer backbone. Additionally a novel process is disclosed for producing polymer compositions by dissolving a polydiene in a monomeric diene during emulsion polymerization conditions.

    摘要翻译: 包含高1,2-富集的新型聚合物组合物在本文中描述。 所述聚合物组合物具有高达约50重量%的1,2单元,其中约25重量%至约75重量%的全部1,2单元存在于聚合物主链中。 此外,公开了一种通过在乳液聚合条件下将聚二烯溶解在单体二烯中来生产聚合物组合物的新方法。

    Polyetherimide-polyamide blends
    10.
    发明授权
    Polyetherimide-polyamide blends 失效
    聚醚酰亚胺 - 聚酰胺共混物

    公开(公告)号:US5013799A

    公开(公告)日:1991-05-07

    申请号:US248326

    申请日:1988-09-21

    IPC分类号: C08L77/00

    CPC分类号: C08L77/00 Y10S525/928

    摘要: Disclosed are blends comprising from about 40 to 70 wt. % of a polyetherimide and the remainder one or more polyamides. The blends generally have a tensile strength which is greater than the tensile strength of polyetherimide-polyamide blends which do not contain from about 40 to 70% polyetherimide, while still retaining a good combination of other physical properties such as heat distortion characteristics and impact strength. In addition, the blends of the invention may have a flexural strength which is greater than that of other polyetherimide-polyamide blends which do not contain from about 40 to 70% polyetherimide.

    摘要翻译: 公开了包含约40至70wt。 %的聚醚酰亚胺,其余为一种或多种聚酰胺。 共混物通常具有比不含约40至70%聚醚酰亚胺的聚醚酰亚胺 - 聚酰胺共混物的拉伸强度大的拉伸强度,同时仍然保持其它物理性能如热变形特性和冲击强度的良好组合。 此外,本发明的共混物可具有比不含约40至70%聚醚酰亚胺的其它聚醚酰亚胺 - 聚酰胺共混物的弯曲强度更大的弯曲强度。