Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

Filed on

1989-09-13

Date issued

1991-12-24

Examiner

Cashion, Jr., Merrell C.

Patent Class

Stock material or miscellaneous articles

SubClass

Web or sheet containing structurally defined element or...

SubSubClass

Physical dimension specified

Other Related Categories

428694, 428695, 428900, G11B 2300

Type

Patent

Status

active

Patent number

050751670

Description

ABSTRACT:
A magnetic recording medium exhibiting good still durability and good running properties is disclosed, which comprises a non-magnetic support having thereon a first magnetic layer and a second magnetic layer in sequence, the first and second magnetic layers containing ferromagnetic powder and a binder, wherein a fatty acid ester (A) having the following structure is contained in the first magnetic layer and a fatty acid ester (B) having the following structure is contained in the second magnetic layer: ##STR1##

REFERENCES:
patent: 4587157 (1986-05-01), Brock et al.
patent: 4624883 (1986-11-01), Yamaguchi et al.
patent: 4690864 (1987-09-01), Funahashi et al.

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Also associated with

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