Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1997-01-29

1997-12-23

Pianalto, Bernard

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428332, 428694BA, 428694BR, 428694T, 428695, 428900, B32B 516

Patent

active

057005630

ABSTRACT:
A magnetic recording medium having a magnetic layer formed by coating a non-magnetic support member with a magnetic coating material mainly composed of ferromagnetic iron alloy powder and a binding material, wherein the magnetic coating material includes ferromagnetic iron alloy powder containing Co by 6 to 30 atom %, Y by 1 to 6 atom % and Al by 10 to 15 atom % with respect to Fe and having an average major axis length of 0.06 .mu.m to 0.20 .mu.m, polyvalent carboxylic acid having a molecular weight of 300 or less or an anhydride of the polyvalent carboxylic acid, a binding material, and a lubricant, and the maxim diameter of pores in the magnetic layer is 10 nm to 30 nm.

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