Magnetic recording medium containing an unsaturated fatty acid d

Details Magnetic recording medium containing an unsaturated fatty acid d Magnetic recording medium containing an unsaturated fatty acid d

1994-12-19

1997-11-18

Resan, Stevan A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428694BP, 428694BN, 428900, G11B 0570

Patent

active

056885911

ABSTRACT:
A magnetic recording medium has a magnetic layer on a non-magnetic substrate. The magnetic layer contains ferromagnetic powder dispersed in a binder and a lubricant which is an unsaturated fatty acid diester of a dihydric alcohol and an unsaturated fatty acid, preferably a C.sub.2-6 dihydric alcohol and a C.sub.14-24 unsaturated fatty acid, typically neopentyl glycol dioleate. The lubricant remains effective in low-temperature, high-temperature, and thermal cycling environments without bleed-out. The medium is low in rotational torque, abrasion resistant and durable.

REFERENCES:
patent: 4203856 (1980-05-01), Pardee
patent: 4232072 (1980-11-01), Pardee
patent: 5164239 (1992-11-01), Ozawa et al.

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