Magnetic recording medium lubricant comprising two different flu

Details Magnetic recording medium lubricant comprising two different flu Magnetic recording medium lubricant comprising two different flu

1990-07-11

1992-02-25

Cashion, Jr., Merrell C.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428421, 428694, 428695, 428900, G11B 0500

Patent

active

050912496

ABSTRACT:
A magnetic recording medium comprising a non-magnetic support having a magnetic layer thereon, wherein the surface of the magnetic layer contains (a) a first fluorinated polyether having an oxo acid group or an oxo acid salt group at one or both terminals thereof, and (b) a second fluorinated polyether having a group selected from a alkoxycarbonyl group, an acyloxy group and a hydroxyl group at one or both terminals thereof, or the polyether (a) and polyether (b) are incorporated into the magnetic layer.

REFERENCES:
patent: 4267238 (1981-05-01), Chernega
patent: 4268556 (1981-05-01), Pedrotty
patent: 4692378 (1987-09-01), Ishihara et al.
patent: 4696845 (1987-09-01), Yanagisawa
patent: 4786544 (1988-11-01), Saito
patent: 4816334 (1989-03-01), Yokoyama et al.

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