Magnetic recording medium containing an ester lubricant branched

Details Magnetic recording medium containing an ester lubricant branched Magnetic recording medium containing an ester lubricant branched

1989-07-24

1991-09-17

Cashion, Jr., Merrell C.

Stock material or miscellaneous articles

Surface property or characteristic of web, sheet or block

4284258, 4284259, 428694, 428695, 428900, G11B 2300

Patent

active

050494481

ABSTRACT:
A magnetic recording medium is disclosed, comprising a nonmagnetic support having thereon a magnetic layer, wherein at least one of ester compounds represented by formula (I) is present in or on the magnetic layer, ##STR1## wherein R.sub.1 represents a straight chain, saturated alkyl group having 6 to 12 carbon atoms, R.sub.2 represents a straight chain, saturated alkyl group having 4 to 10 carbon atoms, and R represents a branched or straight chain alkyl group having 4 to 22 carbon atoms.

REFERENCES:
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patent: 4420540 (1983-12-01), Ogawa et al.
patent: 4595640 (1986-06-01), Chernega
patent: 4675250 (1987-06-01), Kanai
patent: 4741959 (1988-05-01), Abe et al.
patent: 4772522 (1988-09-01), Kubota et al.
patent: 4786551 (1988-11-01), Ootani et al.

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