Production of magnetic recording media

Details Production of magnetic recording media Production of magnetic recording media

1984-07-12

1985-11-05

Pianalto, Bernard D.

Coating processes

Magnetic base or coating

Magnetic coating

427128, H01F 1002

Patent

active

045513597

ABSTRACT:
Magnetic recording media possessing a thin magnetic layer are produced by dispersing finely divided magnetically anisotropic material and conventional additives in a solution of a polymeric binder in an organic solvent, applying a layer of the dispersion to a non-magnetizable base by means of a knife-coater, then, if required, orienting the magnetically anisotropic material by means of a magnetic field and drying the applied layer, a high molecular weight organic compound which acts as a thickener being added to the magnetic dispersion.

REFERENCES:
patent: 3209054 (1965-09-01), English et al.
patent: 3413141 (1968-11-01), Friedman
patent: 3649358 (1972-03-01), Johnston II
patent: 4058646 (1977-11-01), Vaeth et al.
patent: 4234438 (1980-11-01), Horigome et al.
patent: 4320171 (1982-03-01), Motz et al.

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