Magnetic recording media
AssigneeBASF SE
InventorsManfred Ohlinger, Jenoe Kovacs
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Abstract
Abstract of the Disclosure: Magnetic recording media comprise a nonmagnetic substrate and a magnetizable layer arranged thereon and essentially consisting of a magnetic material from the group consisting of the cobalt-modified iron oxides and of the hexagonal ferrites and inorganic fillers finely dispersed in organic binders, the inorganic filler used being ferromagnetic chromium dioxide.
Claims1
A magnetic recording medium consisting essentially of a non-magnetic substrate and a magnetizable layer arranged thereon said magnetizable layer consisting essentially of a magnetic material from the group consisting of the cobalt-modified iron oxides and of the hexagonal ferrites in combination with acircular ferromagnetic chromium dioxide particles dispersed in organic ,binders, wherein said acicular ferromagnetic chromium dioxide particles have a coercive force of greater than 24 kA/m and a specific surface area of from 20 to 60 m.sup.2 /g and are present in an amount of from >10 to 20%, based on the total amount of magnetic material.
Dependencies are inferred from the claim text.