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18 条记录 (耗时 0.017 秒)

    Thermosetting resin composition, printed circuit board using the resin composition and process for producing printed circuit board
    2.
    发明公开
    Thermosetting resin composition, printed circuit board using the resin composition and process for producing printed circuit board 失效
    热固性树脂组合物，由该组合物和方法用于制造印刷电路的印刷电路。

    公开(公告)号：EP0364785A1

    公开(公告)日：1990-04-25

    申请号：EP89118041.6

    申请日：1989-09-29

    申请人： HITACHI, LTD. ,  Hitachi Chemical Co., Ltd.

    发明人： Suzuki, Masao ,  Katagiri, Junichi ,  Nagai, Akira ,  Suzuki, Masahiro ,  Takahashi, Akio

    IPC分类号： C08G18/62 ,  C08L25/18 ,  C08G73/00

    CPC分类号： C08G18/092 ,  C08G18/6275 ,  C08G18/6705 ,  C08G18/678 ,  C08G73/1035 ,  H01B3/302 ,  H01B3/303 ,  H05K1/0346 ,  Y10S428/901 ,  Y10T156/10 ,  Y10T428/24917 ,  Y10T428/31547 ,  Y10T428/31678

    摘要： A thermosetting resin composition which comprises a cyanate compound or an isocyanate compound represented by the following general formula (I):
    A - R₁ - A      (I)
    wherein R₁ is an aromatic group, an alicyclic group or a mixed group thereof and A is a cyanate group or an isocyanate group, and a poly-(p-hydroxystyrene) deriva­tive represented by the following general formula (II):
    wherein X is a fluorine atom, a bromine atom and a chlorine atom, R₂ is an alkenyl group and an unsaturated carboxyl group, each having 2 to 4 carbon atoms, B is any one of a polymerization initiator residue, a polymerization-terminating agent residue, H and
    m is an integer of 1 to 4 and n is an integer of 5 to 100, and further containing a compound having at least one N-substituted unsaturated imido group, if required, can produce a printed circuit board of high flame retardness, low dielectric constant, low moisture absorption and a high mechanical strength at an elevated temperature.

    摘要翻译： 该方法包括或由下述通式（I）表示的异氰酸酯化合物的氰酸酯化合物的热固性树脂组合物： - R1 - A A（I）worin R1是芳族基团，在脂环族基团或它们的混合基团，A是 氰酸酯基或异氰酸酯基，和聚（对 - 羟基苯乙烯）衍生物由下述通式（II）： worin X为氟原子，溴原子和一个氯原子，R 2是链烯基 和不饱和羧基，各自具有2-4个碳原子，B为聚合引发剂残基中的任何一个，聚合终止剂残基，H和 m为1〜4的整数，n是一个整数 5至100，并且还含有具有化合物至少一种N- substituiertem不饱和酰亚氨基，如果需要的话，可以在升高的温度下产生高的火焰retardness，低介电常数，低的吸湿性和高的机械强度的印刷电路板 ，

    Optical information recording disc and apparatus for driving the disc
    5.
    发明公开
    Optical information recording disc and apparatus for driving the disc 失效
    Optische Informationsaufzeichnungsplatte und Plattenantrieb。

    公开(公告)号：EP0335465A2

    公开(公告)日：1989-10-04

    申请号：EP89200782.4

    申请日：1989-03-28

    申请人： Hitachi Maxell Ltd. ,  HITACHI, LTD.

    发明人： Suzuki, Masahiro ,  Sonobe, Takeo ,  Kurane, Koreaki ,  Saito, Akira

    IPC分类号： G11B17/022 ,  G11B17/028 ,  G11B17/00

    CPC分类号： G11B17/0282 ,  G11B7/24 ,  G11B23/0035

    摘要： An optical information recording disc having at least one substrate (1) for recording/reproducing an information through an optical unit is disclosed in which a spindle hole (50) through which a spindle (11) provided in a disc drive system is formed in a central portion of the substrate (1). An engagement member (4; 31; 33; 35; 36; 38) engageable with a disc engagement member (14; 21, 21a; 32; 34; 37; 39) integrally formed with the spindle (11) is formed around the central portion. In addition an associated disc drive apparatus is disclosed in which the disc engagement member is formed in a spindle (11).

    摘要翻译： 公开了一种具有通过光学单元记录/再现信息的至少一个基板（1）的光学信息记录盘，其中设置在盘驱动系统中的主轴（11）通过其形成的主轴孔（50） 基板（1）的中心部分。 与与心轴（11）整体形成的盘接合构件（14; 21,21a; 32; 34; 37; 39）可接合的接合构件（4; 31; 33; 35; 36; 38）围绕中心 一部分。 此外，公开了一种相关的盘驱动装置，其中盘接合构件形成在心轴（11）中。