Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1989-01-26

1991-12-03

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of fluorinated addition polymer from unsaturated monomers

428422, 428694, 428695, 428900, G11B 2300

Patent

active

050699733

ABSTRACT:
A magnetic recording medium comprising a substrate, a magnetic layer formed on at least one surface of the substrate and a lubricant, which is present on or in the magnetic layer and comprises at least one of fluorine-containing solid compound of the formulae: ##STR1## wherein X is a divalent group not containing fluorine, Y is a hydrophilic group or a monovalent group having a terminal carbon-carbon double bond, Z is a hydrogen atom or a metal atom, n is an integer of 3 or more, m is 0 or 1, and p is 2 or 3, which has a small coefficient of friction on the surface, improved durability and running stability.

REFERENCES:
patent: 4188434 (1980-02-01), Loran
patent: 4268556 (1981-05-01), Pedrotty
patent: 4368239 (1983-01-01), Nakajima et al.
patent: 4505990 (1985-03-01), Dasgupta
patent: 4526833 (1985-07-01), Burguette
patent: 4529659 (1985-07-01), Hoshino
patent: 4536444 (1985-08-01), Sumiya

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