Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1986-03-19

1988-05-24

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

427131, 428323, 428694, 428900, G11B 570

Patent

active

047465581

ABSTRACT:
A magnetic recording medium comprising a non-magnetic substrate and a coating type magnetic recording layer formed on the substrate, wherein barium ferrite magnetic powder is perpendicularly oriented, characterized in that an undercoating layer comprising a radiation curable binder and carbon black, is provided beneath the magnetic recording layer.

REFERENCES:
patent: 4183976 (1980-01-01), Yamada et al.
patent: 4442159 (1984-04-01), De Zawa et al.
patent: 4511617 (1985-04-01), Hideyama et al.
patent: 4547419 (1985-10-01), Nishimatsu et al.
patent: 4585697 (1986-04-01), Kato
patent: 4596747 (1986-06-01), Nishimatsu et al.

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