Magnetic recording medium
    5.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US5418285A

    公开(公告)日:1995-05-23

    申请号:US88773

    申请日:1993-07-08

    IPC分类号: C08F8/32

    CPC分类号: C08F8/32

    摘要: Proposed is a novel vinyl chloride-based copolymeric resin suitable as an electron beam-curable binder resin for forming a magnetic recording layer of a magnetic recording medium. The binder resin is a vinyl chloride-based copolymeric resin containing monomeric units having a hydroxy group which is reacted with an ethylenically unsaturated monomeric compound having an isocyanato group in a molecule and then subjected to a modification reaction with an amine compound. The magnetic recording medium, e.g., magnetic recording tape, prepared by using the binder resin is excellent in the surface properties such as gloss and traveling resistance as well as in the magnetic properties such as residual magnetic flux density and squareness ratio of the magnetic hysteresis loop.

    摘要翻译: 提出了一种适用于形成磁记录介质的磁记录层的电子束固化性粘合剂树脂的新型氯乙烯基共聚树脂。 粘合剂树脂是含有具有羟基的单体单元的氯乙烯系共聚树脂,其与分子中具有异氰酸酯基的烯属不饱和单体化合物反应,然后与胺化合物进行改性反应。 通过使用粘合剂树脂制备的磁记录介质例如磁记录带在光泽和行进阻力等表面性能以及磁滞回线的残留磁通密度和矩形比等磁特性方面是优异的 。

    Magnetic recording medium and a coating composition therefor
    6.
    发明授权
    Magnetic recording medium and a coating composition therefor 失效
    磁记录介质及其涂料组合物

    公开(公告)号:US4770941A

    公开(公告)日:1988-09-13

    申请号:US946518

    申请日:1986-12-24

    IPC分类号: G11B5/702

    摘要: The invention provides a magnetic coating composition capable of giving a magnetic recording medium having improved properties in respect of the dispersibility of the ferromagnetic particles in the vehicle resin and the surface properties of the magnetic recording medium coated therewith. The inventive magnetic coating composition is characteristic in the use of a specific vehicle resin having a polymeric molecular structure composed of the monomeric units of vinyl chloride, vinyl alcohol, amine-modified vinyl and, optionally, vinyl carboxylate and epoxy-containing a monomer in specified proportions.

    摘要翻译: 本发明提供一种磁性涂料组合物,其能够提供具有改进的关于铁磁颗粒在载体树脂中的分散性和涂覆的磁记录介质的表面性能的磁记录介质。 本发明的磁性涂料组合物在使用具有聚合物分子结构的特定载体树脂的特征在于,其具有由指定的氯乙烯,乙烯醇,胺改性的乙烯基和任选的羧酸乙烯酯和含环氧基的单体的单体单元组成的聚合物分子结构 比例。