Magnetic recording medium having a lubricant layer of a fluoroal

Details Magnetic recording medium having a lubricant layer of a fluoroal Magnetic recording medium having a lubricant layer of a fluoroal

1993-04-09

1995-03-07

Resan, Stevan A.

Stock material or miscellaneous articles

Self-sustaining carbon mass or layer with impregnant or...

428421, 428457, 428461, 428694TF, 428694TC, 428900, G11B 500

Patent

active

053956966

ABSTRACT:
A magnetic recording medium having a magnetic recording layer on at least one surface of a non-magnetic support, wherein the magnetic recording layer has thereon a lubricant layer containing at least one fluoroalkyl sulfo compound having an ether or ester linkage, which is represented by the following formula (1). The magnetic recording medium is free from corrosion of the magnetic recording layer and has a low coefficient of friction and excellent running durability and shelf stability. The lubricant layer is particularly suitable for a magnetic recording medium having a metal thin film with or without an inorganic protective film as a magnetic recording layer.

REFERENCES:
patent: 4092110 (1978-05-01), Adolphi et al.
patent: 4536444 (1985-08-01), Sumiya et al.
patent: 4789599 (1988-12-01), Nakamura et al.
patent: 4828924 (1989-05-01), Shoji et al.
patent: 5069973 (1991-12-01), Saito et al.
patent: 5091249 (1992-02-01), Nishikawa et al.

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