Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1980-08-04

1983-01-11

Silverman, Stanley S.

Stock material or miscellaneous articles

Composite

Of fluorinated addition polymer from unsaturated monomers

427 44, 427128, 427131, 428447, 428520, 428522, 428523, 428695, 428409, 428900, 360134, G11B 572

Patent

active

043682391

ABSTRACT:
A magnetic recording medium having low friction coefficient and superior in aging characteristics is disclosed. The magnetic recording medium is provided with a lubricant which is strongly bonded to the magnetic recording medium by a bombardment of an electron beam. In one embodiment, the lubricant containing a molecular chain having a lubricating property, and a double bond sensitive to dissociation products such as free radicals are coated on a magnetic layer and then electron beam irradiates the magnetic layer. A radical reaction then occurs causing a covalent bond of the lubricant to the magnetic recording layer.

REFERENCES:
patent: 3993824 (1976-11-01), Shirahata et al.
patent: 4007313 (1977-02-01), Higuchi et al.
patent: 4058443 (1977-11-01), Murata et al.
patent: 4091123 (1978-05-01), Ayusawa et al.
patent: 4110503 (1978-08-01), Ogawa et al.
patent: 4135016 (1979-01-01), Ogawa et al.
patent: 4163809 (1979-08-01), McGinniss et al.
patent: 4169904 (1979-10-01), Czornyj et al.
patent: 4171406 (1979-10-01), Yamaguchi et al.
patent: 4180598 (1979-12-01), Emmons
patent: 4189514 (1980-02-01), Johnson
patent: 4260466 (1981-04-01), Shirahata et al.

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