Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1997-04-25

2000-01-18

Kiliman, Leszek

Stock material or miscellaneous articles

Structurally defined web or sheet

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

428323, 428329, 428339, 4284735, 428694B, 428694BS, 428694BR, 428694BN, 428694BA, 428694BH, 428694BM, 428900, G11B 566, B32B 310

Patent

active

060156023

ABSTRACT:
A magnetic recording medium is disclosed, comprising a non-magnetic support having provided thereon at least a lower non-magnetic layer comprising a binder having dispersed therein a non-magnetic powder and an upper magnetic layer comprising a binder having dispersed therein a ferromagnetic powder which has been coated on said lower non-magnetic layer while the lower non-magnetic layer is wet, wherein the upper magnetic layer has an average dry thickness (d) of not more than 1.0 .mu.m and an average thickness variation (.sup..DELTA. d) at the interface between the upper magnetic layer and lower non-magnetic layer is not more than d/2. The magnetic recording medium exhibits excellent electromagnetic characteristics, running properties, and durability.

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