Magnetic recording media

Details Magnetic recording media Magnetic recording media

G - Physics

11

B

G11B 5/708 (2006.01) G11B 5/733 (2006.01) G11B 5/738 (2006.01)

Patent

CA 2215259

Described are tape-type magnetic recording media (I) including a non-magnetic substrate (III), at least one film applied to the substrate and, in at least one of these films, an inorganic acicular pigment (II) suitable for use as a supporting pigment, the ratio of the mean length to the mean diameter of the pigment (II) being at least 3 and the mean modulus of elasticity of the films being not less than 15 GPa in the longitudinal direction of the tape-type recording medium (I).

La présente invention concerne des supports d'enregistrement magnétique (I) comprenant un support non magnétique (III), au moins une couche appliquée sur ce support et, au moins dans l'une de ces couches, un pigment aciculaire inorganique (II) approprié comme pigment support, avec un rapport longueur moyenne/diamètre médian moyen du pigment (II) d'au moins 3, le module d'élasticité moyen desdites couches étant au moins égal à 15 GPa dans le sens longitudinal du support d'enregistrement (I) en forme de bande.

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