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243 条记录 (耗时 0.024 秒)

    Preparation of magnetic recording media
    77.
    发明授权
    Preparation of magnetic recording media 失效
    磁记录介质的制备

    公开(公告)号：US4597990A

    公开(公告)日：1986-07-01

    申请号：US769979

    申请日：1985-08-27

    申请人： Hermann Roller ,  Joachim Hack ,  Uwe Woweries ,  August Lehner ,  Werner Grau ,  Peter Nagel ,  Roland Falk

    发明人： Hermann Roller ,  Joachim Hack ,  Uwe Woweries ,  August Lehner ,  Werner Grau ,  Peter Nagel ,  Roland Falk

    IPC分类号： C08J7/04 ,  C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  C10M105/56 ,  C10N40/18 ,  C10N70/00 ,  G11B5/702 ,  G11B5/842

    CPC分类号： G11B5/7021 ,  Y10S428/90 ,  Y10T428/31609

    摘要： A process for the preparation of a magnetic recording medium by dispersing pulverulent magnetic material in a binder mixture which is dissolved in an organic solvent and essentially consists of an elastomeric polyurethane and a high molecular weight hydroxyl-containing polymer, with addition of dispersing assistants and conventional additives, applying a layer of the dispersion, to which a diisocyanate and/or polyisocyanate has first been added, to a base material and the solidifying the layer and crosslinking the binder matrix, wherein the diisocyanate and/or polyisocyanate is added to the dispersion and, before applying the dispersion to the base, from 15 to 55% of the NCO groups present react with the hydroxyl-containing polymer of the binder mixture.

    摘要翻译： 一种通过将粉状磁性材料分散在溶解在有机溶剂中并且基本上由弹性体聚氨酯和高分子量含羟基聚合物组成的粘合剂混合物中制备磁记录介质的方法，加入分散助剂和常规的 添加剂，将首先加入二异氰酸酯和/或多异氰酸酯的分散体层分别加入到基材中，并固化该层并交联粘合剂基质，其中将二异氰酸酯和/或多异氰酸酯加入到分散体中， 在将分散体施加到基材之前，存在15〜55％的NCO基团与粘合剂混合物的含羟基聚合物反应。

    Apparatus comprising a lubricant-coated magnetic disc and a magnetic head, and method of making said apparatus
    78.
    发明授权
    Apparatus comprising a lubricant-coated magnetic disc and a magnetic head, and method of making said apparatus 失效
    包括润滑剂涂覆的磁盘和磁头的装置以及制造所述装置的方法

    公开(公告)号：US4583145A

    公开(公告)日：1986-04-15

    申请号：US604798

    申请日：1984-04-27

    申请人： Annelie Monnich ,  Michael Glatzel ,  Holger Hinkel ,  Gerhard Kaus ,  Georg Kraus ,  Ulrich Kunzel ,  Erhard Max

    发明人： Annelie Monnich ,  Michael Glatzel ,  Holger Hinkel ,  Gerhard Kaus ,  Georg Kraus ,  Ulrich Kunzel ,  Erhard Max

    IPC分类号： G11B5/72 ,  C09D5/23 ,  C09D163/00 ,  C10M107/38 ,  C10N40/18 ,  G11B5/40 ,  G11B5/725 ,  G11B5/82

    CPC分类号： G11B5/725 ,  G11B5/40 ,  Y10S428/90 ,  Y10T428/257 ,  Y10T428/31515 ,  Y10T428/31544 ,  Y10T428/31663

    摘要： The magnetic disc comprises a magnetizable layer (1) to which an adhesion promoting layer (4) and thereto a lubricant film (5) are applied. Onto the substrate of the magnetic head (2) an adhesion reducing layer (9) is deposited. The apparatus can also show only one adhesion-influencing layer. The layers (4) and (9) are formed by the reaction of a sililating agent with reactive groups on the surface of the magnetizable layer (1), or of the substrate of the magnetic head (2), respectively. The sililating agents used differ in their terminal groups of which one category produce van der Waals bonds to the lubricant molecules, and the other is chemically indifferent relative to the lubricant molecules.The two layers (4) and (9) are made e.g. by the spin-coating of a solution of the sililating agent, and subsequent drying.The apparatus ensures a homogeneous coating of the magnetizable layer (1) with lubricant, and it prevents the pick-up of lubricant by the substrate of the magnetic head (2).

    摘要翻译： 磁盘包括可施加粘附促进层（4）和润滑剂膜（5）的可磁化层（1）。 在磁头（2）的基板上沉积粘附降低层（9）。 该装置还可以仅显示一个粘附影响层。 层（4）和（9）分别通过硅化剂与可磁化层（1）的表面上的反应性基团或磁头（2）的基底的反应形成。 所用的硅烷化剂在其末端基团中不同，其中一类与润滑剂分子产生范德华力键，而另一种类型相对于润滑剂分子化学无差异。 两层（4）和（9）制成例如。 通过旋涂硅胶剂的溶液，随后干燥。 该装置确保可润滑层（1）的均匀涂层具有润滑剂，并且其防止由磁头（2）的基底拾取润滑剂。

    Magnetic recording medium
    79.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4582757A

    公开(公告)日：1986-04-15

    申请号：US638935

    申请日：1984-08-09

    申请人： Takahito Miyoshi ,  Kenichi Masuyama ,  Masahiro Utumi ,  Toshimitu Okutu ,  Masaaki Fujiyama

    发明人： Takahito Miyoshi ,  Kenichi Masuyama ,  Masahiro Utumi ,  Toshimitu Okutu ,  Masaaki Fujiyama

    IPC分类号： C10M103/02 ,  C09D101/18 ,  C09D175/04 ,  C10M171/00 ,  C10N40/18 ,  G11B5/73 ,  G11B5/735 ,  G11B5/72

    CPC分类号： G11B5/735 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/257 ,  Y10T428/258 ,  Y10T428/30

    摘要： A magnetic recording medium which comprises a non-magnetic support having on the surface side thereof a magnetic recording layer and on the opposite side thereof a backing layer having a thickness of 2 .mu.m or less, which contains carbon black and a binder and optionally, an inorganic powder, in which the backing layer contains at least two kinds of carbon black, one being fine-grained carbon black having a mean grain size of 10 to 30 m.mu. and the other being coarse-grained carbon black having a mean grain size of 150 to 500 m.mu. such that the weight ratio (P/B) of the total amount of carbon black and inorganic powder (P) to binder (B) is from about 1/0.5 to 1/3.5. The recording medium described provided smooth and stable tape-running for an extended period and a high S/N ratio.

    摘要翻译： 一种磁记录介质，其特征在于，具有非磁性载体，所述非磁性载体的表面侧具有磁记录层，并且在其相对侧上具有厚度为2μm或更小的背衬层，所述背衬层含有炭黑和粘合剂， 无机粉末，其中背衬层含有至少两种炭黑，一种是平均粒径为10至30μm的细粒炭黑，另一种是具有平均粒径的粗粒炭黑 为150〜500μm，炭黑和无机粉末（P）的总量与粘合剂（B）的重量比（P / B）为约1 / 0.5〜1 / 3.5。 所描述的记录介质延长了一段时间并且具有高S / N比的平稳和稳定的磁带运行。