Process of making a magnetic recording media
    1.
    发明授权
    Process of making a magnetic recording media 失效
    制作磁记录媒体的过程

    公开(公告)号:US4310565A

    公开(公告)日:1982-01-12

    申请号:US150181

    申请日:1980-05-15

    CPC分类号: G11B5/7021

    摘要: A process for the manufacture of magnetic recording media, comprising a non-magnetic base and, applied thereto, one or more magnetizable layers, consisting of an anisotropic magnetic material finely dispersed in an organic binder, wherein the binder contains at least 40% of an aqueous ionomeric polyurethane dispersion which at 50.degree. C. forms films having a modulus of elasticity of from 50 to 700 N/mm.sup.2 and a DIN No. 53,157 pendulum hardness of from 20 to 110 s, the corresponding values of the modulus and hardness at room temperature being more than 3.5 times higher.

    摘要翻译: 一种用于制造磁记录介质的方法,包括非磁性基底,并施加于其上,由可分散在有机粘合剂中的各向异性磁性材料组成的一个或多个可磁化层,其中所述粘合剂含有至少40%的 水性离聚物聚氨酯分散体,其在50℃下形成弹性模量为50-700N / mm2的薄膜和DIN编号53,157摆锤硬度为20至110秒,相应的室温模量和硬度值 温度高出3.5倍以上。