Rigid magnetic recording disk having perfluoropolyether lubrican

Details Rigid magnetic recording disk having perfluoropolyether lubrican Rigid magnetic recording disk having perfluoropolyether lubrican

1979-08-15

1982-04-27

Psitos, Aristotelis M.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 64, 428216, 428341, 428422, 428695, 428900, G11B 582, B32B 702, B32B 2700

Patent

active

043271391

ABSTRACT:
A magnetic recording medium comprising a non-magnetic base and a magnetizable layer which is applied to at least one side thereof and comprises magnetic particles finely dispersed in a polymeric binder and additives, the surface of the magnetizable layer being provided with a coating of a perfluoropolyether oil mixture as a lubricant.

REFERENCES:
patent: 3778308 (1973-12-01), Roller et al.
patent: 3919719 (1975-11-01), Wright et al.
patent: 4154895 (1979-05-01), Ogawa et al.
patent: 4172171 (1979-10-01), Suzuki et al.
patent: 4172176 (1979-10-01), Tanaka et al.
patent: 4188434 (1980-02-01), Loran
patent: 4268556 (1981-05-01), Pedrotty

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