Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1987-01-07

1988-04-05

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Weight per unit area specified

427128, 427131, 427132, 428341, 428421, 428422, 428694, 428695, 428900, G11B 571, G11B 572

Patent

active

047358483

ABSTRACT:
Described is a magnetic recording medium wherein a thin magnetic metal film is formed as the magnetic layer on a non-magnetic base, and wherein a carboxylic acid perfluoroalkyl ester is coated as the lubricant on the thin magnetic metal film used as the magnetic layer to produce the magnetic recording medium exhibiting good running properties, wear resistance and durability under any operating conditions.
The carboxylic acid perfluoroalkyl ester employed as the lubricant in the present invention is a compound represented by the general formula

REFERENCES:
patent: 3490946 (1970-01-01), Wolff
patent: 4213870 (1980-07-01), Loran
patent: 4232072 (1980-11-01), Pardee
patent: 4268556 (1981-05-01), Pedrotty
patent: 4309482 (1982-01-01), Suzuki
patent: 4327139 (1982-04-01), Schaefer
patent: 4425404 (1984-01-01), Suzuki
patent: 4612244 (1986-09-01), Kaneda
patent: 4624892 (1986-11-01), Ishizaki
patent: 4645703 (1987-02-01), Suzuki
patent: 4647507 (1987-03-01), Suzuki
patent: 4692378 (1987-09-01), Ishihara

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