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    Films, preimpregnated tapes and composites made from polyimide “Salt-like” Solutions
    3.
    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

    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。

    Polyimide foams
    4.
    发明授权
    Polyimide foams 有权
    聚酰亚胺泡沫

    公开(公告)号：US07541388B2

    公开(公告)日：2009-06-02

    申请号：US11124640

    申请日：2005-05-05

    申请人： Juan M. Vazquez ,  Roberto J. Cano ,  Brian J. Jensen ,  Erik S. Weiser

    发明人： Juan M. Vazquez ,  Roberto J. Cano ,  Brian J. Jensen ,  Erik S. Weiser

    IPC分类号： C08J9/04

    CPC分类号： C08J9/142 ,  C08G18/346 ,  C08G18/60 ,  C08G73/1035 ,  C08G2101/00 ,  C08J9/04 ,  C08J2379/08

    摘要： A fully imidized, solvent-free polyimide foam having excellent mechanical, acoustic, thermal, and flame resistant properties is produced. A first solution is provided, which includes one or more aromatic dianhydrides or derivatives of aromatic dianhydrides, and may include one or more aromatic diamines, dissolved in one or more polar solvents, along with an effective amount of one or more blowing agents. This first solution may also advantageously include effective amounts respectively of one or mores catalysts, one or more surfactants, and one or more fire retardants. A second solution is also provided which includes one or more isocyanates. The first and second solutions are rapidly and thoroughly mixed to produce an admixture, which is allowed to foam—in an open container, or in a closed mold—under ambient conditions to completion produce a foamed product. This foamed product is then cured by high frequency electromagnetic radiation, thermal energy, or a combination thereof. Alternatively, the process is adapted for spraying or extrusion.

    摘要翻译： 产生具有优异的机械，声学，热和阻燃性能的完全酰亚胺化的无溶剂聚酰亚胺泡沫。 提供了第一种溶液，其包括一种或多种芳族二酸酐或芳族二酸酐的衍生物，并且可以包含溶解在一种或多种极性溶剂中的一种或多种芳族二胺以及有效量的一种或多种发泡剂。 该第一溶液还可以有利地包括一种或多种催化剂，一种或多种表面活性剂和一种或多种阻燃剂的有效量。 还提供了包括一种或多种异氰酸酯的第二溶液。 将第一和第二溶液迅速且彻底地混合以产生混合物，其允许在开放的容器中或在封闭的模具中在环境条件下发泡以完成产生发泡产品。 然后，该发泡产品通过高频电磁辐射，热能或其组合固化。 或者，该方法适于喷涂或挤出。

    Polyimide foams
    9.
    发明授权
    Polyimide foams 有权
    聚酰亚胺泡沫

    公开(公告)号：US06956066B2

    公开(公告)日：2005-10-18

    申请号：US10779552

    申请日：2004-02-11

    申请人： Juan M. Vazquez ,  Roberto J. Cano ,  Brian J. Jensen ,  Erik S. Weiser

    发明人： Juan M. Vazquez ,  Roberto J. Cano ,  Brian J. Jensen ,  Erik S. Weiser

    IPC分类号： C08G18/34 ,  C08G18/60 ,  C08G73/10 ,  C08J9/04 ,  C08J9/14

    CPC分类号： C08J9/142 ,  C08G18/346 ,  C08G18/60 ,  C08G73/1035 ,  C08G2101/00 ,  C08J9/04 ,  C08J2379/08

    摘要： A fully imidized, solvent-free polyimide foam having excellent mechanical, acoustic, thermal, and flame resistant properties is produced. A first solution is provided, which includes one or more aromatic dianhydrides or derivatives of aromatic dianhydrides, and may include one or more aromatic diamines, dissolved in one or more polar solvents, along with an effective amount of one or more blowing agents. This first solution may also advantageously include effective amounts respectively of one or mores catalysts, one or more surfactants, and one or more fire retardants. A second solution is also provided which includes one or more isocyanates. The first and second solutions are rapidly and thoroughly mixed to produce an admixture, which is allowed to foam—in an open container, or in a closed mold—under ambient conditions to completion produce a foamed product. This foamed product is then cured by high frequency electromagnetic radiation, thermal energy, or a combination thereof. Alternatively, the process is adapted for spraying or extrusion.

    摘要翻译： 产生具有优异的机械，声学，热和阻燃性能的完全酰亚胺化的无溶剂聚酰亚胺泡沫。 提供了第一种溶液，其包括一种或多种芳族二酸酐或芳族二酸酐的衍生物，并且可以包含溶解在一种或多种极性溶剂中的一种或多种芳族二胺以及有效量的一种或多种发泡剂。 该第一溶液还可以有利地包括一种或多种催化剂，一种或多种表面活性剂和一种或多种阻燃剂的有效量。 还提供了包括一种或多种异氰酸酯的第二溶液。 将第一和第二溶液迅速且彻底地混合以产生混合物，其允许在开放的容器中或在封闭的模具中在环境条件下发泡以完成产生发泡产品。 然后，该发泡产品通过高频电磁辐射，热能或其组合固化。 或者，该方法适于喷涂或挤出。