Magnetic recording medium
    42.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US4444838A

    公开(公告)日:1984-04-24

    申请号:US387129

    申请日:1982-06-10

    摘要: A magnetic recording medium which comprises on a support base having coated thereon a magnetic layer containing a binder and a ferromagnetic fine powder dispersed in the binder is disclosed. The binder is comprised of a cellulose derivative having a residual OH group in a proportion of 7.5 to 40%, a diolefin or olefin series synthetic rubber and a polyisocyanate compound. The medium has excellent video sensitivity and video signal to noise ratio. The medium of the invention also have improved abrasion resistance.

    摘要翻译: 公开了一种磁记录介质,其包括在其上涂覆有包含粘合剂的磁性层的支撑基底和分散在粘合剂中的铁磁细粉末。 粘合剂由具有7.5〜40%的残留OH基的纤维素衍生物,二烯烃或烯烃系合成橡胶和多异氰酸酯化合物构成。 该介质具有出色的视频灵敏度和视频信噪比。 本发明的介质也具有改善的耐磨性。

    Magnetic tape magazine
    45.
    发明授权
    Magnetic tape magazine 失效
    磁带杂志

    公开(公告)号:US4085907A

    公开(公告)日:1978-04-25

    申请号:US777536

    申请日:1977-03-14

    IPC分类号: G11B23/087 G11B23/10

    CPC分类号: G11B23/08764

    摘要: Elastic cushion sheets are interposed between friction sheets and the inner walls of the casing of a tape magazine to press the side faces of the tape convolutions. By the pressure of the elastic cushion sheets exerted on the side faces of the tape convolutions, the edges of the tape are effectively aligned in the convolutions.

    摘要翻译: 弹性衬垫片介于摩擦片和胶带盒的壳体的内壁之间,以压紧带卷的侧面。 通过施加在带卷的侧面上的弹性缓冲片的压力,带的边缘在卷积中有效对准。

    Magnetic recording medium
    47.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US3943012A

    公开(公告)日:1976-03-09

    申请号:US498337

    申请日:1974-08-19

    CPC分类号: G11B5/70615 G11B5/70621

    摘要: A magnetic recording medium for high density recording comprising a support having thereon a magnetic recording layer comprising a ferromagnetic metal powder of the Fe-Co-Cr-B system and having a coercive force of about 700 to 500 oersteds in the oriented direction of the magnetic substance and a residual magnetic flux density of about 1500 gausses or more, the residual magnetic flux density of which after storage for 160 hours under the conditions of a temperature of 60.degree.C and 90%RH is 85% or more of the initial value thereof before storage under these conditions in a binder. The magnetic recording medium is especially suitable for high density recording, having sufficient sensitivity and excellent resistance.

    摘要翻译: 一种用于高密度记录的磁记录介质,包括其上具有包含Fe-Co-Cr-B系统的铁磁金属粉末的磁记录层的支撑体,并且在磁性方向上具有约700至500奥斯特的矫顽力 物质和约1500高斯或更高的剩余磁通密度,其在60℃和90%RH的温度条件下储存160小时后的剩余磁通密度为其初始值的85%或更多 在这些条件下在粘合剂中储存之前。 磁记录介质特别适用于高密度记录,具有足够的灵敏度和优异的电阻。

    Cleaning tape
    48.
    发明授权
    Cleaning tape 失效
    清洁胶带

    公开(公告)号:US4490762A

    公开(公告)日:1984-12-25

    申请号:US472386

    申请日:1983-03-10

    IPC分类号: G11B5/41 G11B5/627

    CPC分类号: G11B5/41 G11B5/627

    摘要: A cleaning tape comprising a support having coated thereon a cleaning layer containing a binder and an organic polymer powder is disclosed.

    摘要翻译: 公开了一种清洁带,其包括其上涂覆有包含粘合剂和有机聚合物粉末的清洁层的载体。