Magnetic recording medium comprising non-magnetic acicular parti

Details Magnetic recording medium comprising non-magnetic acicular parti Magnetic recording medium comprising non-magnetic acicular parti

1998-08-12

2000-05-16

Le, Hoa T.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428329, 428331, 428403, 428404, 428692, 428693, 428694R, 428694B, 428694BR, 428694BN, 428694BA, B32B 516, G11B 558

Patent

active

060634901

ABSTRACT:
A magnetic recording medium of the present invention comprises: a base film; a non-magnetic undercoat layer formed on said base film and comprising a binder resin and non-magnetic acicular particles containing iron as a main component, comprising iron and titanium of 0.05 to 50% by weight, calculated as Ti, based on the total weight of the particles, which is present within the particle; and a magnetic recording layer formed on said non-magnetic undercoat layer and comprising magnetic particles and a binder resin. Such a magnetic recording medium has a low light transmittance, an excellent smooth surface, a high mechanical strength and an excellent durability.

REFERENCES:
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patent: 5587232 (1996-12-01), Hayashi et al.
patent: 5604015 (1997-02-01), Hayashi et al.
patent: 5672423 (1997-09-01), Inaba et al.
patent: 5773133 (1998-06-01), Sasaki et al.
patent: 5830557 (1998-11-01), Hayashi et al.

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