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    Space environmentally durable polyimides and copolyimides
    8.
    发明授权
    Space environmentally durable polyimides and copolyimides 失效
    空间环保的聚酰亚胺和共聚酰亚胺

    公开(公告)号：US07109287B2

    公开(公告)日：2006-09-19

    申请号：US10988407

    申请日：2004-11-08

    申请人： John W. Connell ,  Joseph G. Smith, Jr. ,  Paul M. Hergenrother ,  Kent A. Watson ,  Craig M. Thompson

    发明人： John W. Connell ,  Joseph G. Smith, Jr. ,  Paul M. Hergenrother ,  Kent A. Watson ,  Craig M. Thompson

    IPC分类号： C08G69/26

    CPC分类号： C08G73/1071 ,  C08G73/10 ,  C08G73/1014 ,  C08G73/1039 ,  C08G73/1057 ,  C08G73/1067

    摘要： Polyimides displaying low color in thin films, atomic oxygen resistance, vacuum ultraviolet radiation resistance, solubility in organic solvents in the imide form, high glass transition (Tg) temperatures, and high thermal stability are provided. The poly(amide acid)s, copoly(amide acid)s, polyimides and copolyimides are prepared by the reaction of stoichiometric ratios of an aromatic dianhydride with diamines which contain phenylphosphine oxide groups in polar aprotic solvents. Controlled molecular weight oligomeric (amide acid)s and imides can be prepared by offsetting the stoichiometry according to the Carothers equation using excess diamine and endcapping with aromatic anhydrides. The polyimide materials can be processed into various material forms such as thin films, fibers, foams, threads, adhesive film, coatings, dry powders, and fiber coated prepreg, and uses include thin film membranes on antennas, second-surface mirrors, thermal optical coatings, and multi-layer thermal insulation (MLI) blanket materials.

    摘要翻译： 提供在薄膜中显示低色的聚酰亚胺，原子氧电阻，真空紫外线辐射抗性，在酰亚胺形式的有机溶剂中的溶解度，高玻璃化转变温度和高热稳定性。 聚（酰胺酸），共聚（酰胺酸），聚酰亚胺和共聚酰亚胺通过芳族二酐与极性非质子溶剂中含有苯基氧化膦基团的二胺的化学计量比的反应来制备。 控制分子量的低聚（酰胺酸）和酰亚胺可以通过使用过量的二胺和用芳族酸酐封端根据Carothers方程来抵消化学计量来制备。 聚酰亚胺材料可以加工成各种材料形式，如薄膜，纤维，泡沫，线，粘合膜，涂料，干粉和纤维涂层预浸料，其中包括天线薄膜，第二面反光镜，热光学 涂层和多层保温（MLI）覆层材料。

    Space environmentally durable polyimides and copolyimides
    9.
    发明授权
    Space environmentally durable polyimides and copolyimides 失效
    空间环保的聚酰亚胺和共聚酰亚胺

    公开(公告)号：US06841652B2

    公开(公告)日：2005-01-11

    申请号：US10095340

    申请日：2002-03-08

    申请人： John W. Connell ,  Joseph G. Smith, Jr. ,  Paul M. Hergenrother ,  Kent A. Watson ,  Craig M. Thompson

    发明人： John W. Connell ,  Joseph G. Smith, Jr. ,  Paul M. Hergenrother ,  Kent A. Watson ,  Craig M. Thompson

    IPC分类号： C08G73/10 ,  C08G69/26 ,  C08G69/72

    CPC分类号： C08G73/1071 ,  C08G73/10 ,  C08G73/1014 ,  C08G73/1039 ,  C08G73/1057 ,  C08G73/1067

    摘要： Polyimides displaying low color in thin films, atomic oxygen resistance, vacuum ultraviolet radiation resistance, solubility in organic solvents in the imide form, high glass transition (Tg) temperatures, and high thermal stability are provided. The poly(amide acid)s, copoly(amide acid)s, polyimides and copolyimides are prepared by the reaction of stoichiometric ratios of an aromatic dianhydride with diamines which contain phenylphosphine oxide groups in polar aprotic solvents. Controlled molecular weight oligomeric (amide acid)s and imides can be prepared by offsetting the stoichiometry according to the Carothers equation using excess diamine and endcapping with aromatic anhydrides The polyimide materials can be processed into various material forms such as thin films, fibers, foams, threads, adhesive film, coatings, dry powders, and fiber coated prepreg, and uses include thin film membranes on antennas, second-surface mirrors, thermal optical coatings, and multi-layer thermal insulation (MLI) blanket materials.

    摘要翻译： 提供在薄膜中显示低色的聚酰亚胺，原子氧电阻，真空紫外线辐射抗性，在酰亚胺形式的有机溶剂中的溶解度，高玻璃化转变温度和高热稳定性。 聚（酰胺酸），共聚（酰胺酸），聚酰亚胺和共聚酰亚胺通过芳族二酐与极性非质子溶剂中含有苯基氧化膦基团的二胺的化学计量比的反应来制备。 控制分子量低聚（酰胺酸）和酰亚胺可以通过使用过量的二胺和用芳族酸酐封端根据Carothers方程来抵消化学计量来制备。聚酰亚胺材料可以加工成各种材料形式，例如薄膜，纤维，泡沫， 螺纹，粘合剂膜，涂料，干粉和纤维涂层预浸料，并且包括天线上的薄膜膜，第二表面反射镜，热光学涂层和多层保温（MLI）覆盖材料。