Magnetic recording medium lubricated by a three component fatty

Details Magnetic recording medium lubricated by a three component fatty Magnetic recording medium lubricated by a three component fatty

1990-06-29

1992-02-25

Cashion, Jr., Merrell C.

Stock material or miscellaneous articles

Composite

Of inorganic material

428695, 428900, 252 6254, 252 51, 252 56R, G11B 500

Patent

active

050912682

ABSTRACT:
A novel magnetic recording medium is provided comprising a non-magnetic support having provided thereon a magnetic layer comprising a ferromagnetic powder dispersed in a binder, wherein at least one fatty acid amide compound represented by formula (I), at least one fatty acid ester represented by formula (II) and at least one fatty acid ester represented by formula (III) are provided in or on the magnetic layer: ##STR1## wherein R.sup.1 represents a C.sub.13-21 straight-chain saturated hydrocarbon group; ##STR2## wherein R.sup.2 represents a C.sub.12-21 straight-chain or branched saturated or unsaturated hydrocarbon group; and R.sup.3 represents a C.sub.1-10 straight-chain or branched saturated or unsaturated hydrocarbon group; ##STR3## wherein R.sup.4 represents a C.sub.12-21 straight-chain or branched saturated or unsaturated hydrocarbon group; R.sup.5 represents a C.sub.2-3 divalent hydrocarbon group; R.sup.6 represents a C.sub.1-10 straight-chain or branched saturated or unsaturated hydrocarbon group; and n represents an integer of from 1 to 10 where n may be the same or different when the magnetic layer contains two or more compounds represented by formula (III).

REFERENCES:
patent: 4652500 (1987-03-01), Ejiri et al.
patent: 4654258 (1987-03-01), Kawamata et al.

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