Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1987-09-04

1988-12-27

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Weight per unit area specified

427128, 427131, 428215, 428216, 428341, 428421, 428422, 428694, 428695, 428900, G11B 572, G11B 571

Patent

active

047940352

ABSTRACT:
A magnetic recording medium which has a magnetic coating film that contains magnetic particles in a binder and which further has a lubricating layer formed on the magnetic coating film. The magnetic coating film has a surface that is processed with both a fluorinated surface treatment agent that bonds to the magnetic particles and a fluorinated surface treatment agent that bonds to the binder. The magnetic recording medium exhibits markedly improved sliding strength when the surface treatment agents and the lubricant have similar molecular structures. It is particularly preferred that the fundamental skeleton in the molecular structure of the surface treatment agents and the lubricant consists of a perfluoropolyether chain.

REFERENCES:
patent: 4120995 (1978-10-01), Phipps
patent: 4368239 (1983-01-01), Nakajima
patent: 4446193 (1984-05-01), Afzali-Ardakani
patent: 4536444 (1985-08-01), Sumiya
patent: 4583145 (1986-04-01), Monnich
patent: 4624892 (1986-11-01), Ishizaki
patent: 4642246 (1987-02-01), Janssen
patent: 4659633 (1987-04-01), Yamaguchi
patent: 4692378 (1987-09-01), Ishihara
patent: 4696845 (1987-09-01), Yanagisawa
patent: 4722859 (1988-02-01), Kudo

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