发明名称 |
Manufacture of magnetic recording media |
摘要 |
A process for the manufacture of a magnetic recording medium by producing a dispersion of a finely divided anisotropic magnetic material and conventional additives in a solution of a polymeric binder in an organic solvent, applying a layer of the dispersion to a nonmagnetizable base material, then orienting the anisotropic magnetic material by means of a magnetic field, and drying the layer, wherein a compound of the formula (I) <IMAGE> (I) where R1 is straight-chain or branched akyl of 2 to 10 carbon atoms, cycloalkyl of 6 to 10 carbon atoms or aralkyl of 7 to 14 carbon atoms and R2 is hydrogen or one of the radicals given in the definition of R1, is added to the dispersion.
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申请公布号 |
US4180597(A) |
申请公布日期 |
1979.12.25 |
申请号 |
US19780940462 |
申请日期 |
1978.09.08 |
申请人 |
BASF AG |
发明人 |
BAUER, REINHOLD;HARTMANN, HANS-JOERG;MOTZ, HERBERT;SCHNEIDER, NORBERT |
分类号 |
G11B5/708;C09D5/23;G11B5/70;(IPC1-7):H01F10/02 |
主分类号 |
G11B5/708 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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