Magnetic recording medium having a lubricant layer with a specif

Details Magnetic recording medium having a lubricant layer with a specif Magnetic recording medium having a lubricant layer with a specif

1995-11-09

1998-04-21

Resan, Stevan A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428336, 428422, 428694TP, 428694TF, 428900, G11B 571

Patent

active

057415773

ABSTRACT:
A magnetic recording medium comprising a substrate having thereon at least a magnetic layer and a lubricant layer and a process for producing the same are disclosed, in which the lubricant layer is an uppermost layer and comprises a perfluoropolyether lubricant having a number average molecular weight of 800 to 30,000 and represented by formula (I):

REFERENCES:
patent: 3715378 (1973-02-01), Sianesi et al.
patent: 4327139 (1982-04-01), Schaefer et al.
patent: 4451646 (1984-05-01), Sianesi et al.
patent: 4657687 (1987-04-01), Caporiccio et al.
patent: 4960609 (1990-10-01), Homola et al.
patent: 5049410 (1991-09-01), Johary et al.

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