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    • 8. 发明授权
    • Nonwoven reinforcement for printed wiring base board and process for producing the same
    • 印刷布线基板用无纺布加固件及其制造方法
    • US06229096B1
    • 2001-05-08
    • US09166578
    • 1998-10-06
    • Morio GakuMitsuru NozakiKenji SaimenTamemaru Esaki
    • Morio GakuMitsuru NozakiKenji SaimenTamemaru Esaki
    • H05K109
    • D21H13/24D21H17/53D21H25/06H05K1/0366H05K2201/0141H05K2201/0145H05K2201/0166H05K2201/0278H05K2201/0293Y10T428/24322Y10T442/2475
    • There are disclosed a nonwoven reinforcement for a printed wiring base board which nonwoven reinforcement contains a wet system nonwoven fabric constituted of thermotropic cystalline polyester fiber having a melting point of 290° C. or higher (component A) and a thermotropic cystalline polyester binder which has a melting point of 290° C. or higher and is in the form of a film having holes including at least 5 holes/mm2 each with an area of opening of 400 to 1000 &mgr;m2 (component B), the component A being fixed by the component B; a process for producing the above nonwoven reinforcement; a printed wiring base board produced from the above nonwoven reinforcement; and a printed wiring board produced from the above printed wiring base board. The nonwoven reinforcement and the printed wiring (base) board are excellent in various performances such as uniformity, dimensional stability, heat resistance and electrical characteristics such as dielectric constasnt and dielectric loss tangent.
    • 公开了一种用于印刷布线基板的无纺布加强件,其中非织造材料增强件包含由熔点为290℃或更高的(A组分)的热致变性结晶聚酯纤维构成的湿系非织造织物和具有 熔点为290℃以上,并且为具有包含至少5个孔/ mm 2的孔的膜的形式,每个孔的开口面积为400〜1000mum2(B成分),成分A被固定在 组分B; 一种生产上述无纺布增强件的方法; 由上述无纺布加强件制成的印刷布线基板; 以及由上述印刷布线基板制造的印刷电路板。 非织造布加强件和印刷布线(基底)板在诸如均匀性,尺寸稳定性,耐热性和电特性如介电常数和介电损耗角正切性等各种性能方面都是优异的。
    • 10. 发明授权
    • Process of producing plastic-molded printed circuit boards
    • 生产塑料印刷电路板的工艺
    • US4764327A
    • 1988-08-16
    • US3344
    • 1987-01-14
    • Mitsuru NozakiHirokatsu Nakamura
    • Mitsuru NozakiHirokatsu Nakamura
    • B29C33/40C08K3/08C08L79/08H05K3/00
    • H05K3/0014B29C33/40C08K3/08C08L79/08H05K2201/09118
    • A process of producing plastic-molded printed circuit boards by injection-molding a heat resistant plastic to form a plastic molding having many perforations and forming a conductive layer on the molding, which comprises molding the heat resistant plastic using a mold for injection-molding obtained by preparing a die set for injection-molding composed of a fixed side metal platen having at least an inlet for molten resin and forming a space for installing mold part(s), a stripper metal platen having, if necessary, an inlet for molten resin connected to the fixed side metal platen and forming a space for installing mold part(s), and a movable side metal platen forming a space for installing mold part(s); and assembling a pair of molds composed of a mold I having a concaved portion for cavity and a mold II having perforations for passing hard pins for forming holes and, if desired, a concaved portion for cavity, said molds being formed by a cured resin composition or a composite of a metal and a cured resin composition, and a hard pin mold III having hard pins for forming holes fixed thereto in such a manner that(a) the mold I is fixed to the fixed side metal platen, the mold II is fixed to the stripper metal platen, and the hard pin mold III is fixed to the movable side metal platen in this order, or(b) the hard pin mold III is fixed to the fixed side metal platen, the mold II is fixed to the stripper metal platen, and the mold I is fixed to the movable side metal platen in this order.
    • 一种通过注射成型耐热塑料来形成塑料模制印刷电路板的方法,以形成具有许多穿孔的塑料模制件,并在模制件上形成导电层,该方法包括使用所获得的用于注模的模具模制耐热塑料 通过制备由至少具有熔融树脂入口并形成用于安装模具部件的空间的固定侧金属压板组成的注塑成型模具,如果需要,具有熔融树脂入口的汽提金属压板 连接到固定侧金属压板并形成用于安装模具部件的空间和形成用于安装模具部件的空间的可动侧金属压板; 并且组装由模具I构成的一对模具,该模具具有用于空腔的凹部,模具II具有用于穿过用于形成孔的硬销的穿孔,并且如果需要,还需要一个空腔的凹部,所述模具由固化树脂组合物形成 或金属和固化树脂组合物的复合物,以及具有用于形成孔的硬销的硬销模具III,其以(a)模具I固定在固定侧金属压板上,模具II为 固定到剥离金属压板上,硬销模具III依次固定到可动侧金属压板上,或者(b)硬销模具III固定到固定侧金属压板上,模具II固定到 剥离金属压板,并且模具I按此顺序固定到可移动侧金属压板。