Particulate filled composition
    8.
    发明授权
    Particulate filled composition 失效
    颗粒填充组成

    公开(公告)号:US06172139B2

    公开(公告)日:2001-01-09

    申请号:US08146981

    申请日:1993-11-02

    IPC分类号: C08J305

    摘要: A method for making a particulate filled polymeric matrix composite film includes mixing a polymeric matrix material with a dispersion of particulate filler in a carrier liquid to form a casting composition and adjusting the viscosity of the casting composition to retard separation of the particulate filler from the composition. A layer of the viscosity-adjusted casting composition is cast on a substrate and the layer is consolidated to form the particulate filled polymer matrix composite film. Films made by the method include very thin, e.g less than 1.0 mil, fluoropolymeric matrix films highly filled with very small diameter, preferably spherical, particles for use as, e.g. dielectric substrate materials in laminar electrical circuits.

    摘要翻译: 制备颗粒填充的聚合物基质复合膜的方法包括将聚合物基体材料与颗粒填料的分散体混合在载体液体中以形成流延组合物并调节流延组合物的粘度以阻止颗粒填料与组合物的分离 。 将粘度调节的浇铸组合物的一层浇铸在基材上,并将该层固结以形成填充颗粒的聚合物基质复合膜。 通过该方法制备的膜包括非常薄的,例如小于1.0密耳的高度填充有非常小直径,优选球形的颗粒的含氟聚合物基质膜,用于例如, 层状电路中的电介质基片材料。