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    • 29. 发明授权
    • SUBSTRATE FOR FLEXIBLE PRINTED CIRCUITS AND METHOD OF FABRICATING THE SAME, AND FILM
    • 用于柔性印刷电路的基板及其制造方法和电影
    • EP0016230B1
    • 1984-10-03
    • EP79900652.3
    • 1979-06-13
    • SUMITOMO BAKELITE COMPANY LIMITED
    • YAMAOKA, SigenoriKUSUHARA, AkinobuENDO, Toshinaga
    • H05K1/05C08L63/00
    • H05K1/00C08G59/4269C08L63/00H05K1/0346H05K1/0353Y10S428/901Y10T428/24917Y10T428/2495Y10T428/24967Y10T428/24975Y10T428/31525Y10T428/31529Y10T428/31681Y10T428/31721Y10T428/31725C08L2666/20
    • A substrate for flexible printed circuits obtained by coating a metal foil with an organic solvent solution of a heat resistant resin composition consisting of a heat resistant resin having an heterocyclic ring and epoxy resin and then drying the metal foil to thereby form a film directly on the foil as a material adapted for a flexible printed circuit board, and a method of fabricating the same. The printed circuit board exhibits heat resistance, fire retardance, adhesion, electric insulation and heat deterioration characteristics which are remarkably superior to the conventional circuit board which is obtained by integrating a heat resistant film with a metal foil via an adhesive. These properties are very important in practical use of the printed circuit board. The substrate of this invention is inexpensive since it can be easily fabricated as compared with the conventional one. This substrate can also be used for not only various flexible printed circuit boards but also as substrate for films alone.
    • PCT No.PCT / JP79 / 00150 Sec。 371日期1980年2月5日 102(e)1980年2月5日PCT PCT。1979年6月13日PCT公布。 公开号WO80 / 00117 日本1990年1月24日。公开了一种柔性印刷电路基板,其通过涂覆由具有杂环和环氧树脂的耐热树脂组成的耐热树脂组合物作为柔性印刷电路板的元素材料而制造 将树脂溶解在金属箔上的有机溶剂中并干燥以直接在所述箔上形成膜及其制造方法。 所述柔性印刷电路基板与通过粘合剂集成耐热膜和金属箔而获得的传统基板相比,耐热性,阻燃性,粘合性,电绝缘性和热劣化性更优异。 这些性能在印刷电路基板的实际应用中是非常重要的。 与常规产品相比,生产容易,因此可以以低成本制造本基板。 该基板不仅可用于各种类型的柔性印刷电路板,而且从基板获得的膜本身也可用于使用膜的领域。