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    Compatible polyimide resin blends, process for their preparation and their use
    1.
    发明公开
    Compatible polyimide resin blends, process for their preparation and their use 失效
    VerträglichePolyimidharzmischungen，Verfahren zu ihrer Herstellung und ihre Verwendung。

    公开(公告)号：EP0182589A2

    公开(公告)日：1986-05-28

    申请号：EP85308231.1

    申请日：1985-11-13

    申请人： WESTINGHOUSE ELECTRIC CORPORATION

    发明人： Marchetti, Joseph Raymond ,  Sanjana, Zal Navshir

    IPC分类号： C08L79/08 ,  C08L63/02 ,  C08J5/02

    CPC分类号： C08J5/24 ,  C08G18/6438 ,  C08J2379/08 ,  C08L61/06 ,  C08L63/00 ,  C08L79/08 ,  H01B3/306 ,  H05K1/0346 ,  H05K1/0373 ,  C08L2666/14 ,  C08L2666/16

    摘要： Composition comprising from 5 to 95 phr of a polyepoxide or other resinous component, from 20to 90% of an aprotic solvent, from 5to 95 phrof a polyimide having sufficient amic acid functionality to be soluble in the solvent, and sufficient water to hydrolyze the polyimide. A laminate is made from the composition by heating it until the amic acid functionality is substantially eliminated, then impregnating a fibrous substrate with the composition, heating the impegnated substrate to evaporate the solvent and B-stage the composition and form a prepreg, forming a stack of the prepregs, and heating and pressing the stack of prepregs to cure the composition. A wire enamel can also be made from the composition.

    摘要翻译： 组合物，其包含5至95phr的聚环氧化物或其它树脂组分，20至90％的非质子溶剂，5至95phr具有足够的可溶于溶剂的酰胺酸官能度的聚酰亚胺和足够的水解水解 聚酰亚胺。 通过加热组合物制成叠层体，直到酰胺酸官能团基本上被除去，然后用组合物浸渍纤维基材，加热所形成的底物以蒸发溶剂，并对组合物进行B阶处理并形成预浸料，形成叠层 的预浸料，并且加热和挤压叠层的预浸料以固化组合物。 电线搪瓷也可以由组合物制成。