Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1983-05-10

1986-09-02

Robinson, Ellis P.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

360134, 360135, 360136, 252 6254, 427128, 428694, 428900, G11B 570

Patent

active

046095888

ABSTRACT:
A magnetic recording medium comprises a magnetic layer coated on a substrate and composed of ferromagnetic powder dispersed in a binder, wherein the magnetic layer contains TiO.sub.2 having an average particle size of at most 8 .mu.m and a surface area of at most 25 m.sup.2 /g as measured by a nitrogen adsorption method, and Al.sub.2 O.sub.3 having an average particle size of at least 0.1 .mu.m and a surface area of at most 30 m.sup.2 /g as measured by a nitrogen adsorption method.

REFERENCES:
patent: 4015042 (1977-03-01), Chassaigne
patent: 4323596 (1982-04-01), Buxbaum et al.
patent: 4399189 (1983-08-01), Nakashima et al.
patent: 4420408 (1983-12-01), Kajimoto
patent: 4423452 (1983-12-01), Kajimoto
patent: 4425400 (1984-01-01), Yamaguchi et al.
patent: 4448842 (1984-05-01), Yamaguchi et al.

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